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Archive for the 'Energy' Category

European conference focuses on nanotechnology as alternative to fossil fuels

Posted by Jim Lewis on October 15th, 2008

Nanotech pathways to a sustainable energy economy are generating a great deal of interest in Europe.

Another nanotechnology route to better ultracapacitors for energy storage

Posted by Jim Lewis on September 26th, 2008

Chemically modified graphene has found in manganese oxide nanoflower/carbon nanotube array a rival nanotech material to improve energy storage using ultracapacitors.

Graphene nanotechnology promises better power storage

Posted by Jim Lewis on September 18th, 2008

Chemically modified graphene (CMG) may lead to ultracapacitors that can store about twice as much electrical charge as is possible with current commercially available materials.

Nanotechnology defines gold catalysts to near atomic precision

Posted by Jim Lewis on September 12th, 2008

A very powerful electron microscope capable of resolving single gold atoms has revealed why some gold nanoparticles work and some don’t.

Nanowire network may provide hydrogen for fuel via nanotechnology

Posted by Jim Lewis on September 4th, 2008

A web of single-crystalline titanium disilicide absorbs light efficiently and may be a useful catalyst to split water.

Multiple nanotechnology paths lead to harvesting solar energy

Posted by Jim Lewis on August 26th, 2008

Two stories today in ScienceDaily point to different nanotech applications that could enable a solar solution to our energy problems.

Nanotechnology provides key to turning waste into ethanol

Posted by Jim Lewis on August 21st, 2008

A new nanotech catalyst now enables the efficient conversion of syngas to ethanol.

Potential of nanotechnology for clean energy draws attention of US presidential candidates

Posted by Jim Lewis on August 6th, 2008

A role for nanotech applications can be seen in the responses to the US energy crisis made by both candidates for the US Presidency.

Nanotechnology provides key capability for artificial photosynthesis

Posted by Jim Lewis on July 16th, 2008

Chinese scientists have developed a nanotech solution to harvest energy from multiple electrons—something alternative approaches to artificial photosynthesis have not yet managed to do.

Solar cell nanotechnology uses the right imperfections

Posted by Jim Lewis on June 20th, 2008

Carbon nanotubes with the proper imperfections were found to replace more problematic and expensive materials in dye-sensitized solar cells.

Nanotechnology controls crystal morphology for energy and environmental applications

Posted by Jim Lewis on June 10th, 2008

Researchers have developed a method of producing titanium oxide crystals with more reactive surfaces.

A nanotechnology approach to making thin film solar cells more efficient

Posted by Jim Lewis on May 21st, 2008

Nanowires of indium phosphide grown directly on an electrode greatly increase the flow of electrons through a polymer film to the electrode.

Nanotechnology to produce electricity from nuclear waste?

Posted by Jim Lewis on April 1st, 2008

Phil McKenna at NewScientist.com news service describes a nanotechnology advance that turns radiation directly into electricity, leading us to wonder if it thus simultaneously provides a use for nuclear waste. This nanotech application appears to be in the early stages of development, so aside from questions of just how efficient and how expensive it would [...]

Nanotechnology theory guides synthesis of better catalysts for fuel cells

Posted by Jim Lewis on March 31st, 2008

By combining more precise core-shell nanoparticle synthesis techniques with electronic structure theory to predict the properties of nanoparticles, nanotechnology researchers have produced a better catalysts for fuel cells.

Nanotechnology provides a cost-effective way to improve performance of thermoelectric materials

Posted by Jim Lewis on March 27th, 2008

An economical nanotech procedure—ball milling followed by hot pressing—recasts a commercially available material as a composite of random nanostructures that efficiently converts waste heat into electricity.

More efficient solar cells through quantum dot nanotechnology

Posted by Jim Lewis on March 14th, 2008

Nanotech provides a way to tailor the optical and electronic properties of materials through engineering their nanostructures. Nanotechnology researchers have demonstrated that quantum dots of different sizes will absorb light of different wavelengths, and that an architecture using nanotubes transports electrons better than one using nanospheres, thus making more efficient solar cells possible. In “Catching [...]

Nanotechnology may provide a practical way to store hydrogen

Posted by Jim Lewis on March 5th, 2008

Proponents of replacing gasoline with hydrogen for fueling cars have to find a practical way to store hydrogen. One potential nanotech-based solution is presented by the recent demonstration that hydrogen can form chemical bonds with most of the carbon atoms in single-walled carbon nanotubes of the appropriate diameter (2.0 nm). From “The March of the [...]

Decorated carbon nanotubes may improve fuel cells

Posted by Jim Lewis on March 4th, 2008

Nanotechnology catalysts may enable more efficient fuel cells to power consumer electronics via the oxidation of methanol.

Nanotechnology in clothing harvests energy from the wearer’s movements

Posted by Jim Lewis on February 19th, 2008

Fibers made from zinc oxide nanowires can generate electrical current from low frequency mechanical motion, like body movements.

Surprise: silicon nanotechnology turns heat into electricity

Posted by Christine Peterson on January 15th, 2008

Chemistry World over at RSC.org tells of a happy new research result in the area of nanotechnology for energy: Two teams of US scientists have demonstrated silicon-based ‘thermoelectric’ materials that could convert waste heat back into electricity – potentially giving a boost to the efficiency of everything from power stations to refrigerators… The thermoelectric effect [...]