Green Design

Carbon Nanotubes Help Energize Fuel Cells and Metal-Air Batteries

Fuel cells, which use chemicals to create electricity, hold promise in a variety of areas but the high price of platinum catalysts used inside the cells has provided a roadblock. One promising low-cost alternative to platinum is the carbon nanotube – an excellent conductor of electricity. Multi-walled carbon nanotubes riddled with defects and impurities on the outside could eventually replace some of the platinum catalysts used in fuel cells and metal-air batteries, according to Stanford University scientists.

Posted in: Batteries, Alternative Fuels, Energy Storage, News

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Low-Platinum Electrocatalysts for Fuel Cell Electric Vehicles

Tune in for a live webcast from the U.S. Department of Energy on June 19th, from 12-1 p.m. EDT. Electrocatalysts developed by Brookhaven National Laboratory's (BNL) scientists use less costly platinum and increase the effectiveness of fuel cells for use in electric vehicles.

Posted in: Alternative Fuels, Transportation, Automotive, News

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Detecting Contaminants in Water

Many organic contaminants in the air and in drinking water need to be detected at very low-level concentrations. Research published by the laboratory of Prashant V. Kamat, the John A. Zahm Professor of Science at the University of Notre Dame, could be beneficial in detecting those contaminants.

Posted in: Environmental Monitoring, Metals, Sensors, Detectors, Semiconductors & ICs, News

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New Materials May Cut Energy Costs for Carbon Capture

A study of over four million absorbent minerals has determined that industrial minerals called zeolites could help electricity producers slash as much as 30 percent of the parasitic energy costs associated with removing carbon dioxide from power plant emissions. The research was done by scientists at Rice University, UC Berkeley, Lawrence Berkeley National Laboratory, and the Electric Power Research Institute.

Posted in: Remediation Technologies, Greenhouse Gases, Materials, Energy Efficiency, Energy, News

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Technology Awarded for Improving Submarine Air Quality

Creators of a nanotech-based system that captures carbon dioxide from the atmosphere within a submarine while providing a more environmentally friendly removal process have won the Federal Laboratory Consortium Interagency Partnership Award for 2012. The technology — Self Assembled Monolayers on Mesoporous Supports, or SAMMS — is destined for incorporation into future submarines.

Posted in: Remediation Technologies, Greenhouse Gases, Materials, Nanotechnology, News

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Copper-Gold Nanoparticles Efficiently Convert Carbon Dioxide

Copper is one of the few metals that can turn carbon dioxide into hydrocarbon fuels with relatively little energy, but it is temperamental and easily oxidized. MIT researchers have engineered nanoparticles of copper mixed with gold - which is resistant to corrosion and oxidation - making the copper much more stable. They coated electrodes with the hybrid nanoparticles and found that much less energy was needed for conversion.

Posted in: Remediation Technologies, Greenhouse Gases, Materials, Metals, Energy Efficiency, Nanotechnology, News

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Boosting Nanowires for Better Batteries and Solar Cells

Stanford University engineers have found a novel method for "decorating" nanowires with chains of tiny particles to increase their electrical and catalytic performance. The technique is simpler and faster than earlier methods and could lead to better lithium-ion batteries, more efficient thin-film solar cells, and improved catalysts that yield new synthetic fuels.

Posted in: Batteries, Alternative Fuels, Energy Storage, Solar Power, Renewable Energy, Nanotechnology, News

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