News tagged with oxidation
'Oscar Madison' approach to solar cells may outshine 'Felix Unger' design
Sometimes neatness may not be necessary. Researchers have demonstrated that a tangled coating of randomly positioned nanowires can increase solar cell efficiency by absorbing more light.
Sep 12, 2011 |
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Switching from coal to natural gas would do little for global climate, study indicates
Although the burning of natural gas emits far less carbon dioxide than coal, a new study concludes that a greater reliance on natural gas would fail to significantly slow down climate change. The study appears ...
Sep 08, 2011 |
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Neutron analysis reveals unique atom-scale behavior of 'cobalt blue'
Neutron scattering studies of "cobalt blue," a compound prized by artists for its lustrous blue hue, are revealing unique magnetic characteristics that could answer questions about mysterious properties in ...
Sep 06, 2011 |
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Crop performance matters when evaluating greenhouse gas emissions: study
Measuring the emission of greenhouse gases from croplands should take into account the crops themselves.
Sep 06, 2011 |
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Researchers demonstrate an electrochromic nanoplasmonic optical switch
In a recent article in Nano Letters, CNST researchers describe a new high-contrast, low operating-voltage, electrochemical optical switch that uses a volume of active dye orders-of-magnitude smaller than that of conventional electr ...
Sep 01, 2011 |
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Wastewater recycling can multiply greenhouse gas emissions
New research shows that wastewater recycling processes may generate more greenhouse gases than traditional water-treatment processes. Despite this finding, there are good reasons to continue keep wastewater ...
Aug 29, 2011 |
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Nickel nanoparticles may contribute to lung cancer
All the excitement about nanotechnology comes down to this: Structures of materials at the scale of billionths of a meter take on unusual properties. Technologists often focus on the happier among these newfound capabilities, ...
Nanotechnology / Bio & Medicine
Aug 23, 2011 |
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How the N2O greenhouse gas is decomposed
Nitrous oxide (N2O) is a harmful climate gas. Its effect as a greenhouse gas is 300 times stronger than that of carbon dioxide. Nitrous oxide destroys the ozone layer. In industrial agriculture, it is generated ...
Aug 22, 2011 |
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In Brief: Bifunctional plasmonic / magnetic nanoparticles
An amorphous-seed mediated strategy has been developed in the Center for Nanoscale Materials Nanophotonics Group at the Argonne National Laboratory for creating bifunctional nanoparticles composed of silver ...
Nanotechnology / Nanomaterials
Aug 19, 2011 |
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In Brief: Martian soil oxidation-reduction potential not too extreme for life
Ever since the NASA Viking mission, which reached Mars in 1976, there has been considerable interest in the composition of Martian soils.
Space & Earth / Space Exploration
Aug 18, 2011 |
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Manipulating nanoparticles' surface chemistry holds medical promise
(PhysOrg.com) -- Swapping the chemical groups that originally coat iron oxide nanoparticles and making the particles soluble in biological solvents shows great promise for medical applications, such as drug delivery and contrast ...
Nanotechnology / Bio & Medicine
Aug 17, 2011 |
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Cooling down global warming
(PhysOrg.com) -- Carbon capture has long been identified as a critical technology needed to prevent global warming, but efficient and economical ways to do it have been hard to find.
Aug 16, 2011 |
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E. coli metabolism reversed for speedy production of fuels, chemicals
In a biotechnological tour de force, Rice University engineering researchers this week unveiled a new method for rapidly converting simple glucose into biofuels and petrochemical substitutes. In a paper published ...
Aug 10, 2011 |
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Anthropogenic nitrogen plays a double role in climate change
Human nitrogen additions to the soil may reinforce the greenhouse effect. Nitrogen additions tend to boost plant growth, so that terrestrial ecosystems absorb more carbon dioxide from the atmosphere. ...
Aug 04, 2011 |
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Long-time mystery in cobalt oxides
The existence of an intermediate-spin (IS) state in cobalt oxides has long been a subject of dispute. A recent resonant X-ray scattering experiment has clearly demonstrated Co3+ eg orbital ordering in Sr3YCo4O10.5, ...
Aug 03, 2011 |
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