PESWiki.com -- Pure Energy Systems Wiki:   Finding and facilitating breakthrough clean energy technologies.



 

Directory:Nanotechnology

From PESWiki

Jump to: navigation, search

Nanotechnology and Energy

Directory of theories and practical applications, as well as companies that are utilizing nanotechnology for improving energy generation techniques as well as deriving new energy modalities altogether.

Contents

Applications to Energy

Nanotechnology could turn out to be the most important technological development for advancing energy technolgies in well over one hundred years. Nanotechnology, which means building technology on the molecular or nano (billionths) scale, has already started to impact solar energy and battery storage technology. Nanotechnology might someday allow for far more powerful, more efficient and less expensive solar and battery storage technology. Nanotechnology is a rather young field, only gaining acceptance in the late 1990s, so the potential for future nanotechnology-based energy advancements is very high in coming years.

Overviews

  • Carbon Nanotubes and other Nanotechnology Solutions for Renewable Energy - From vastly increasing efficiencies in solar power to reducing costs of hydrogen generation, the alternative energy sector is seeing a range of nanotech developments. Reducing the amount of raw product necessary for technology production, carbon nanotechnology cuts costs and conserves our precious non-renewable resources. (PESWiki; Aug. 13, 2008)
  • Solar > Nanotech could make solar energy as easy and cheap as growing grass - Scientists are working to produce cheap, sustainable solar energy by imitating nature. Nanotechnology researchers like California Institute of Technology professor Nate Lewis are exploring nanoscale materials that mimic the architecture of grass and photosynthesis to capture and store the sun's energy. (PhysOrg; Sept. 17, 2007)

Directories

  • Aerogels - This 87-year old technology will improve ultracapacitors by swapping in carbon nanotubes, since they have a extremely high surface area, carbon aerogels are used to create ultracapacitors with values ranging up to thousands of farads. It is already used a a super-insulator and for collecting stardust by NASA. (PESWiki; August 18, 2008)

Example of Nanotechnology Affecting Energy Technology

An example of how nanotechnology affects energy technology is recent announcements by battery companies that indicate that by using nanotechnology to design new anodes and cathode materials, they are able to greatly increase the amount and rate of energy that can be transferred to a battery, and reduce the recharge times significantly as a result.

Battery companies have also introduced nanotechnology battery designs that are capable of storing more energy than previous designs, by making better use of a battery's storage potential.

Solar engineers have reported early nanotechnology-based breakthroughs in solar technology that might: allow a far wider spectrum of solar energy to be captured by future solar cells, allow solar cells to be able to convert solar energy to electricity far more efficiently, allow solar collectors to be painted on just about any surface, and could bring down the cost of solar technology significantly.

At PESWiki

  • Featured: Hydrogen / Water > as Fuel > Electrolysis / Nanotechnology >
    Ohmasa Gas makes water as fuel more feasible - Mr. Ohmasa, president of Japan Techno, has devised a method of producing an unusual hydrogen-oxygen gas by using low frequency vibrations to circulate the water upon which electrolysis is run, creating a highly stable H2-O2 gas called Ohmasa gas which exhibits unusual characteristics. For example, Ohmasa gas doesn't explode under pressure. (PESWiki; Nov. 2, 2009) (Comment)
  • Nanosolar a leader in the drive to make solar affordable - Nanosolar has developed proprietary technology that makes it possible to simply roll-print solar cells with performance and durability similar to silicon-wafer cells, while cutting the costs, making solar affordable. The long-term limitation will be the growing scarcity of Indium. (PESWiki; April 6, 2008)
  • Nanoflex can increase all lighting efficiencies - The nano optical coating on Nanoflex™ provides ideal diffusive and reflective surface to capture light rays from any light source including fluorescent lamps to enhance illumination by 50% on average, both for retrofits as well as new fixtures, enabling the reduction of the number of fixtures.
  • Nanotube Super Capacitor Battery - MIT researchers are developing a battery based on capacitors that utilize nanotubes for high surface area, enabling near instantaneous charging and no degradation. Estimating ~5 years to commercialization. (June 10, 2006)
  • Power Chips™ Convert Heat to Electricity - Chips use thermionics to convert heat directly into electricity with a Carnot heat pump efficiency of up to 70-80%. This will be one of the first industrial applications of nanotechnology.
  • Nansulate Paint Creates Efficient Thermal Barrier - Industrial Nanotech, Inc has a line of non-toxic paint products that integrate nanotechnology to provide insulative properties, corrosion resistance, mold resistance. They are also engineering a method to generate electricity from the thermal gradient to which the coating is exposed.

Companies & Technologies

  • Nanotechnology / Solar / Batteries >
    New nano-material could lead to self-washing windows and solar panels - Researchers from Tel Aviv University have discovered a new nanomaterial that can repel dust and water and could provide a self-cleaning coating for windows or solar panels. The new material is made up of molecules of peptides that “grow” to resemble small forests of grass. The coating also acts as a super-capacitor, thereby possibly providing an energy boost to batteries. (GizMag; December 3, 2009)
  • Solar > Photovoltaics
    Nanopillar Solar May Cost 10x Less Than Silicon - A team of researchers from the University of California, Berkeley, have developed a new kind of flexible solar cell that consist of an array of 500-nanometer-high cadmium sulfide pillars printed on top of an aluminum foil... If this could be done on a roll-to-roll process, the cost could be 10x less than crystalline silicon panels. (MIT Technology Review; July 06, 2009)
  • Solar Innovations >
    A Hybrid Nano-Energy Harvester - Researchers have combined a nanogenerator with a solar cell to create an integrated mechanical- and solar-energy-harvesting device. This hybrid generator might be used, e.g., to power airplane sensors by capturing sunlight as well as engine vibrations. (MIT Technology Review; April 09, 2009)
  • EnerG2, a University of Washington Startup, Unveils Technology - EnerG2 is developing novel materials—synthetic carbon powder, carbon monoliths, nanocomposites, and others. It intends to use the stuff for applications like natural gas storage, hydrogen storage, more efficient solar cells, and “ultracapacitors” to replace traditional batteries. (Xconomy; Nov. 3, 2008)
  • Harvesting the sun's energy with antennas - Nanoantennas absorb energy in the infrared part of the spectrum and can take in energy from both sunlight and the earth's heat, with higher efficiency than conventional solar cells. Individual nanoantennas can absorb close to 80 percent of the available energy. (Idaho National Lab; Jan. 2008)
  • Cheap, Efficient Thermoelectrics via Nanomaterials - Researchers at MIT and Boston College have developed an inexpensive, simple technique for achieving a 40 percent increase in the efficiency of a common thermoelectric material, bringing the technology closer to becoming economically feasible for a wide range of waste heat recovery. (MIT Technology Review; March. 20, 2008) (MIT EI)
  • Piezoelectric > Power from Fabrics - Researchers at Georgia Tech have made a flexible fiber coated with zinc oxide nanowires that can convert mechanical energy into electricity. The fibers, the researchers say, should be able to harvest any kind of vibration or motion for electric current. (MIT Technology Review; Feb. 14, 2008)
  • Hydrogen > Buckyballs Can Store Concentrated Hydrogen - Researchers from Rice University have discovered that it's possible to store hydrogen inside buckyballs. The buckyballs can contain up to 8% of their weight in hydrogen, and they are strong enough to hold it at a density that rivals the center of Jupiter. (Rice; Mar. 20, 2008)
  • Solar > Hairy Solar Panels From Nanowire - Researchers have grown light-absorbing nanowires on carbon-nanotube fabric, made from exotic materials that can absorb more energy from the sun than silicon. The aim is to produce flexible, affordable solar cells that will achieve efficiency of 20% within five years, and 40% longer term. (TreeHugger; Feb. 7, 2008) Slashdot; May 19, 2008]
  • Batteries > Nanowire Battery Holds 10 Times The Charge - Stanford researchers have found a way to use silicon nanowires to reinvent the rechargeable lithium-ion batteries that power laptops, iPods, video cameras, cell phones, and countless other devices. Could also be applied to electric vehicles. (Science Daily; Dec. 20, 2007) (See Slashdot)
  • Piezoelectric > Nanowire Extracts Energy from Motion - Researchers at the University of Illinois are working on making a nanogenerator out of barium titanate, which exhibits a greater piezoelectric effect than zinc-oxide, to convert miniscule mechanical energy into electricity for biosensors and tiny portable devices. (MIT Technology Review; Oct. 22, 2007)
  • Virus-Built Electronics - A new way to fabricate nanomaterials from harmless viruses as building blocks could mean batteries and solar cells woven into clothing. The programmed viruses coat themselves with the materials and then, by aligning with other viruses, assemble into crystalline structures useful for making high-performance devices. (MIT Technology Review; Oct. 23, 2007)
  • Batteries > Weaving Batteries into Clothes - A novel machine that makes nanostructured fibers could be the key to a new generation of military uniforms that take on active functions such as generating (e.g. solar) and storing energy. (MIT Technology Review; Oct. 9, 2007)
  • Nanowire generates power by harvesting energy from the environment - As the sizes of sensor networks and mobile devices shrink toward the microscale, and even nanoscale, there is a growing need for suitable power sources. Because even the tiniest battery is too big to be used in nanoscale devices, scientists are exploring nanosize systems that can salvage energy from the environment. (PhysOrg; Sept. 27, 2007)
  • Water + Sunlight = Solar Hydrogen - Scientists are developing a cheap, viable photoelectrolytic technology that would split water into hydrogen and oxygen using sunlight. Using thin films of titanium iron oxide nanotube arrays, they reported a photoconversion rate of 1.5%, and are now optimizing to obtain closer to the theoretical maximum around 12.9%. (TreeHugger; Aug. 17, 2007)
  • Self-Assembling Biological Nanobattery - The iron-containing protein, ferritin, can hold either a positive or negative charge, and it self-assembles relatively easily into a uniform nanolayer. NASA has filed a patent to create one layer of one charge, then cover it with another layer of the opposite charge. NASA reckons its battery is not only stable and robust, but can be produced easily and quickly too. (New Scientist Tech; July 16, 2007)
  • Nanogenerator Provides Continuous Direct Current - Researchers have demonstrated a prototype nanometer-scale generator that produces continuous direct-current electricity by harvesting mechanical energy from such environmental sources as ultrasonic waves, mechanical vibration or blood flow. (PESN; April 7, 2007)
  • Nanotechnology and Photovoltaics - Solar power for less than $1. Nanosys Inc. combines their nanocomposite photovoltaic technology with precisely engineered inorganic semiconductor nanocrystals, yielding light-weight, flexible host-matrix. (FreeEnergyNews feature)
  • Hydrogen Storage Capability Published in Science - Liverpool and Newcastle researchers inject hydrogen gas at high pressure into tiny pores (10-9 Meters) of a specially-designed material to give a dense form of hydrogen, which can then be released per need. (PhysOrg; Oct. 14)
  • Inexpensive, Easy To Produce Solar Panels - Researchers at NJIT have developed an inexpensive solar cell that can be painted or printed on flexible plastic sheets. The process uses tiny carbon Buckyballs to trap electrons, combined with carbon nanotubes, which conduct current better than any conventional electric wire. (The Energy Blog; Jul. 19, 2007)
  • Thin Film Batteries 40 Times More Efficient - Micro-generation of energy is set to bring a worldwide economic revolution brought by the availability of thin film batteries that are more fuel-efficient, charge within minutes, and hold a charge 40 times longer than existing batteries. Thin film batteries can be charged from renewable energy sources and used to power the home and car. (Nanotechnology Now; Feb. 19, 2007)
  • Nano Thin Film PV - Liquidia is developing high-efficiency, cost-effective patterned thin film photovoltaic solar cells based on their PRINT platform for precision nanomolding. It combines photolithographic precision with a scalable continuous manufacturing process. (Renewable Energy Access; Oct. 5, 2007)
  • MultiProbe - [1] designs and manufactures a combined 6-head imaging and atomic force nanoprobing tool, used by the world's leading electronics companies to help in the development of increasingly smaller, faster and more affordable devices. Qualified for 32nm and larger technology nodes. (MultiProbe; Aug 15 , 2008)
  • PolyFuel, Inc. - PolyFuel works to create engineered membranes that provide breakthrough performance in fuel cells for portable electronic and automotive applications. (NanoVIP.com)
  • Pacific Fuel Cell Corp. - Proprietary Proton Exchange Membrane (PEM) fuel cell technology. Development of PEM Fuel Cell with Carbon Nanotube-Based Electrodes. (NanoVIP.com)
  • DayStar Technologies, Inc. - Renewable energy/photovoltaic (PV) technology development and commercialization business. Plans to revolutionize solar power components by using nanotechnology to reduce their size and change their shape for a number of applications. (NanoVIP.com)
  • Energy Consulting Group - Provides worldwide access to critical nanotechnology intellectual property (IP), strategy, partners, sales channels development and financing that enable our clients to maximize their return on advanced energy / power and related initiatives. (NanoVIP.com)
  • Headwaters, Inc. - Provides technologies and service that maximize the value of fossil fuels while creating new sustainable energy technologies for the future. The company has developed a proprietary nano catalyst technology. (NanoVIP.com)
  • Hydrocarbon Technologies, Inc. - The term "nanocatalyst" is derived from "nanometer", meaning one-billionth of a meter, and is used by industry to describe catalysts which are engineered at nanometer-scale precision. HTI works at an even smaller scale, actually at the molecular level, to control the exact geometry of a catalyst's structure. (NanoVIP.com)
  • Kainos Energy Corporation - Kainos Energy combines established materials and fuel cell technologies with a revolutionary nanomaterials process technology to create commercially viable fuel cells. (NanoVIP.com)
  • Konarka Technologies, Inc. - Konarka develops and commercializes photovoltaic products that convert sunlight and indoor light into electricity. [how related to nano?] (NanoVIP.com)
  • mPhase Technologies Inc. - Partnership with Lucent Bell Laboratories for commercializing nano technology creating intelligent power sources. (NanoVIP.com)
  • Nanosolar, Inc. - Bringing to market a new generation of solar electricity cells with unprecedented cost/performance and ease of handling. (NanoVIP.com)
    • Nanosolar Inc, of California - plan to produce solar energy for less than 5 cents per kilowatt-hour using 3D nanocomposite ultra-thin-absorber cells. (The Hindu, India; Feb. 3, 2005)
  • Nuclear Solutions, Inc. - Business objective includes development of licensable product technologies for use in products and services intended for homeland security, defense, nanotechnology, and environmental technology applications. (NanoVIP.com)
  • US Nanocorp (USN) incorporated as a vehicle to identify, develop, and commercialize value-added products in the field of energy storage and energy conversion devices which exploit the extraordinary properties of nanostructured materials. (NanoVIP.com)

Water Desalinization

  • Nanotubes Produce Desalination Breakthrough - Lawrence Livermore National Laboratory is developing a nanotube membrane on a silicon chip the size of a quarter that may offer a cheaper way to remove salt from water, offsetting energy costs of desalination by as much as 75 percent. (LLNL.org; May 19, 2006)

Research and Development

  • Batteries >
    Batteries Made from Regular Paper - A group of Stanford University researchers have shown that ordinary paper can be turned into a battery electrode simply by dipping it into carbon-nanotube inks. The resulting electrodes, which are strong, flexible, and highly conductive, might be used to make cheap energy storage devices to power portable electronics. (MIT Technology Review; Dec. 9, 2009)
  • Solar > PV >
    3-D photovoltaic systems go where the sun don’t shine - Researchers at Georgia Tech have developed a new type of three-dimensional PV system using optical fiber that promises solar generators that are foldable, concealed and mobile, meaning they could be hidden from view and leave rooftops panel-free. Sunlight entering the optical fiber passes into the nanowires, where it interacts with the dye molecules to produce electrical current. (GizMag; Nov. 2, 2009)
  • Batteries >
    Longer-Running Electric-Car Batteries - In an advance that could help electric vehicles run longer between charges, researchers at Stanford University and Hanyang University in Ansan, Korea, have shown that silicon nanotube electrodes can store 10 times more charge than the conventional graphite electrodes used in lithium-ion batteries. (MIT Technology Review; Sept. 23, 2009)
  • Geothermal >
    Cheaper Geothermal - Researchers at Pacific Northwest National Laboratory in Richland, WA, say they've developed a superior type of heat-extracting fluid using nanomaterials that could dramatically improve the economics ( of producing renewable power from low-temperature geothermal resources. The proprietary liquid can potentially boost the rate of heat capture by 20 to 30 percent. (MIT Technology Review; July 24, 2009)
  • Piezoelectric >
    Secrets Of Electricity-Producing Materials - A team of University of Houston scientists has set out to both amplify and provoke the potential in materials known as piezoelectrics, which naturally produce electricity when subjected to strain, such as mechanical movement or jostling. The objective is to create nanodevices that can power electronics, such as cell phones, MP3 players and even biomedical implants. (Energy Daily; July 29, 2009) (Thanks Jim Dunn)
  • Solar > Thin Film >
    Project Sage: Bringing Solar Power to the Masses - Nano-scale research at the Univ. of Arizona could one day lead to photovoltaic materials thin enough, flexible enough and inexpensive enough to go not only on rooftops but in windows, outdoor awnings and even clothing. The goal for UA scientists is to understand and control the interfaces in these devices to enable the development of long-lived solar energy conversion devices on tough, flexible and extremely low-cost plastic substrates. (PhysOrg; July 23, 2009)
  • Batteries >
    Printable batteries - For a long time, batteries were bulky and heavy. Now, a new cutting-edge battery by Fraunhofer ENAS is revolutionizing the field. It is thinner than a millimeter, lighter than a gram, and can be produced cost-effectively through a printing process. (PhysOrg; July 2, 2009)
  • Solar Machines >
    Tiny boats made of nanomaterials are powered directly by sunlight - Researchers at the University of California, Berkeley, are using carbon nanotubes to build small, simple waterborne machines propelled directly by sunlight. In theory, they say, these machines could be scaled up to make energy-generating pumps directly powered by the sun. (MIT Technology Review; April 13, 2009)
  • Nanotechnology / Storage > Capacitors >
    Print-on-Demand Power - Flexible carbon-nanotube supercapacitors could give more power to cell phones and other electronics. Researchers have made the first printable supercapacitor. This high-performance energy-storage device performs better than conventional supercapacitors currently on the market. (MIT Technology Review; April 27, 2009)
  • Nanotechnology / Batteries >
    Nanotech Batteries For A New Energy Future - Researchers at the Maryland NanoCenter at the University of Maryland have developed new systems for storing electrical energy derived from alternative sources that are, in some cases, 10 times more efficient than what is commercially available. (ScienceDaily; March 22, 2009)
  • Sun-powered device converts CO2 into fuel - Powered only by natural sunlight, an array of nanotubes is able to convert a mixture of carbon dioxide and water vapour into natural gas at 20 times higher than with other nanotech methods. (New Scientist; Feb. 18, 2009)
  • Harnessing Hamster Power with a Nanogenerator - Researchers have demonstrated that a nanogenerator can be driven by irregular, low-energy biomotion, including the tapping of a human finger and a hamster's erratic running and scratching. (Video) (MIT Technology Review; Feb. 11, 2009)
  • Carbon Nanotechnology >
    Carbon Aerogels and Ultracapacitors - This technology will improve ultracapacitors by swapping in carbon nanotubes. This greatly increase the surface area of the electrodes and the ability to store energy since the amount of energy ultracaps can hold is related to the surface area and conductivity of electrodes. So.. since they have a extremely high surface area, carbon aerogels are used to create ultracapacitors with values ranging up to thousands of farads. (Greg Allen; April 13, 2008)
  • True properties of carbon nanotubes measured - For more than 15 years, carbon nanotubes (CNTs) have been the flagship material of nanotechnology. Researchers have conceived applications for nanotubes ranging from microelectronic devices to cancer therapy. Their atomic structure should, in theory, give them mechanical and electrical properties far superior to most common materials. (PhysOrg; Aug. 15, 2008)
  • 'Small' research at MSU leads to advances in energy, electronics - A Michigan State University researcher and his students have developed a nanomaterial that makes plastic stiffer, lighter and stronger and could result in more fuel-efficient airplanes and cars as well as more durable medical and sports equipment. (PhysOrg; July 31, 2008)

Non-energy but could be helpful in energy devices

  • DNA Makes Nanotube Transistors - A new DNA assembly methodology may allow scientists to create transistors from carbon nanotubes, a first step in harnessing these structures for commercial circuits. (MIT Technology Review; Dec. 3)
  • Mechanical Valve Design Goes Nano - Combining molecular ing with old-fashioned mechanics yields a design for a nanoscale valve that controls the flow of minute amounts of fluids. (MIT Technology Review; Oct. 14, 2004)

Environmental Concerns

  • Some Nanotubes Could Cause Cancer - New studies suggest that long carbon nanotubes behave like asbestos. Not all types of carbon nanotubes behave like cancer-causing asbestos. The "Nature Nanotechnology" article showed that short nanotubes (those less than 15 micrometers long) and long nanotubes that have become very tangled do not cause inflammation and lesions. (MIT Technology review; May 22, 2008)
  • Nanotech > Nano Safety Alert - Decades of research have brought these materials to a stage where they can provide real value to the world, including several energy applications. However, worker safety, consumer health, and the environmental impacts of such materials have to a large degree been ignored. (MIT Technology Review; Jan. 2, 2007)

In the News

  • High-Performance Thermoelectric Capability in Silicon Nanowires - Researchers have shown that the thermoelectric properties of silicon—a material that can be processed on a large scale but has poor thermoelectric properties—can be vastly improved by structuring it into arrays of nanowires and carefully controlling nanowire morphology and doping. (Green Car Congress; Jan. 11, 2008)
  • New Solar Panel Design Traps More Light - A new solar panel design at Georgia Tech features an array of nano-towers -- like microscopic blades of grass -- that add surface area and trap more sunlight. The team is working on the voltage end of the equation to make the 60-x increase in current meaningful. (PhysOrg; Apr. 11, 2007)
  • The Nanopowers of Spinach - Ohio University physicists have developed a complex nanobiological switch using a scanning tunneling microscope (STM) to image chlorophyll-a and then inject it with a single electron to manipulate the molecule into four positions. The researchers say this biological switch might be used in future applications for green energy, technology and medicine. (Slashdot; Sept. 9, 2006)
  • MIT researchers introduce nanotech battery - Nanotube ultracapacitors would store energy on atomic level, providing what is said to be the first technologically significant and economically viable alternative to conventional batteries in more than 200 years. (PESN; Feb. 9, 2006)
  • First solar-powered nano motor - When one of the dumbbell's stoppers absorbs sunlight, it transfers an electron to one of these ports of call, driving the ring to then shuffle over to the other station. The ring returns to the old site after the electron transfers back to the stopper, allowing the cycle to begin all over again. (PhysOrg; Jan. 24, 2006)
  • Nanobatteries Power Artificial Eyes - A team of researchers at Sandia National Laboratories is developing a nano-size battery to be implanted in the eye to power artificial retina. Applications also include nanomedical devices based on natural and synthetic ion transporters. (Sandia; Jan. 12, 2006) (See Slashdot discussion)
  • Nanotechnology for Recovery and Reuse of Spilled Oil - The recent hurricane Katrina disaster has included significant oil spills. Interface Science Corporation has announced that the company is launching its proprietary oil remediation and recovery application. (PhysOrg; Sept. 9, 2005)
  • Method slashes quantum dot costs by 80 percent - Scientists at Rice University have developed a new method of replacing the pricey solvents used in fluorescent quantum dot synthesis with cheaper oils that are commonplace at industrial chemical plants. (EurekAlert; Sept. 7, 2005)
  • Inexpensive oxidation catalyst could reduce diesel emissions - A new application of silver hollandite could make a big impact in diesel emissions control, according to researchers at Pacific Northwest National Laboratory, who have developed an inexpensive method of synthesizing nano-sized silver hollandite. (EurekAlert; Aug. 31, 2005)
  • New Source of Energy Using Nanotechnology - Solid state energetic material consisting of fuel and oxidizer creates high amounts of mechanical and thermal energy which can be converted energy into electrical energy using the thermoelectric and piezoelectric conversions. (PhysOrg; Aug. 15, 2005)
  • Purdue simulation to help merge molecules with silicon electronics - Engineers at Purdue University have created a nanotech simulation tool that shows how current flows between silicon atoms and individual molecules to help researchers design "molecular electronic" devices for future computers and advanced sensors. Details are appearing in the current issue of Physical Review Letters. (EurekAlert; Aug. 15, 2005)
  • $2 Billion Market in Nanopore - Sponges with pores only nanometers in diameter could help lead to advanced fuel cells in hydrogen-powered cars, as well as super-coolants to keep perishable drugs fresh and devices to clean out toxins in the body. (PhysOrg; July 15, 2005)
  • Nanotechnology holds promise for new hydrogen fuel technologies - Jin Zhang, of the University of California, to receive $535,000 in grants from the U.S. DOE for two research projects aimed at developing new technologies for the production (solar hydrogen) and storage (hydrates) of hydrogen fuel. (PhysOrg; June 29, 2005)
  • A giant step toward tiny functional nanowires - Northwestern University chemists have developed a new method that can routinely and cheaply produce nanowires with gaps as small as five nanometers wide. (EurekAlert; June 29, 2005)
  • Going nano boosts thermoelectrics - International team of university researchers have come up with a designed that could increase maximum efficiency from today's 10% to 50%, whereby dissimilar metal heating/cooling generates electricity. (ZPEnergy; May 27, 2005)
  • Quantum dot materials can reduce heat, boost electrical output - "Nanocrystals," also known as "quantum dots," produce as many as three electrons from one high energy photon of sunlight. In comparison today's photovoltaic solar cells produce less than one electron, the rest is lost as heat. (PhysOrg; May 23, 2005)
  • 'Metal-decorated' nanotubes hold hydrogen - New quantum calculations and computer models show that carbon nanotubes "decorated" with titanium or other transition metals can latch on to hydrogen molecules in numbers more than adequate for efficient hydrogen storage. (PhysOrg; May 4, 2005)
  • Energy, Farms, Water Seen Aided by Nanotechnology - energy storage, production and conversion would be the top use of nanotechnology in a decade, including more efficient solar cells, hydrogen fuel cells and new hydrogen storage. (Reuters; April 13, 2005)
  • Toshiba's New Rechargeable Lithium-Ion Battery Recharges in Only One Minute - A breakthrough technology applied to the negative electrode uses new nano-particles to prevent organic liquid electrolytes from reducing during battery recharging. The nano-particles quickly absorb and store vast amount of lithium ions, without causing any deterioration in the electrode. (Toshiba.com; March 29, 2005)
  • Nanotechnology could promote hydrogen economy - Researchers at Rutgers impose a finely textured surface on the metal iridium creating millions of pyramids with facets as tiny as five nanometers across, onto which ammonia molecules can nestle like matching puzzle pieces for complete and efficient decomposition. (PhysOrg; March 29, 2005 / Journal of the American Chemical Society, April 20, 2005)
  • Moving electrons at the molecular and nonometer scales - Learning how to control the movement of electrons on the molecular and nanometer scales could help scientists devise small-scale circuits for a wide variety of applications, including more efficient ways of storing and using solar energy. (PhysOrg; March 14, 2005)
  • Method Captures, Converts Heat - Using extremely thin nanowires could more than doubles the efficiency of thermoelectric materials, enabling a more effective capturing of thermal sources such as the waste heat in a car or geothermal heat. (PhysOrg; March 31, 2005)
  • Carbon Nanotube Enhanced Ultracapacitors - Our analysis shows that the utilization of a matrix of vertically aligned Carbon Nanotubes as electrode structure, can lead to an ultracapacitor characterized by a power density greater than 100kW/kg (three orders of magnitude higher than batteries), a lifetime longer than 300,000 cycles, and an energy density higher than 60Wh/kg.

Comments

See Discussion page

See also


- More 'Directory' listings
- Return to PESWiki main page

Retrieved from "http://peswiki.com/index.php/Directory:Nanotechnology"
Personal tools
Related

EnergyStork.com items for sale