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Latest Redox Stories

Chemical Reaction Could Provide Energy For Martian Microbes
2013-05-31 12:02:17

Brett Smith for redOrbit.com - Your Universe Online Previous research has shown how rock-water reactions can produce hydrogen when temperatures are far too hot for living things to survive, such as near hydrothermal vent systems on the ocean floor. However, a new study in Nature Geoscience reports that the same hydrogen-producing reaction can also occur at more hospitable temperatures. "Water-rock reactions that produce hydrogen gas are thought to have been one of the earliest sources...

New Insights Could Lead To Better Catalysts For Water Splitting
2013-03-29 10:47:24

California Institute of Technology Chemists at the California Institute of Technology (Caltech) and the Lawrence Berkeley National Laboratory believe they can now explain one of the remaining mysteries of photosynthesis, the chemical process by which plants convert sunlight into usable energy and generate the oxygen that we breathe. The finding suggests a new way of approaching the design of catalysts that drive the water-splitting reactions of artificial photosynthesis. "If we want to...

New Approach To Chemical Reduction Using Catalyst In A Teacup
2013-03-25 09:38:01

University of New South Wales Taking their inspiration from Nature, scientists at the University of New South Wales have developed a new method for carrying out chemical reduction — an industrial process used to produce fuels and chemicals that are vital for modern society. Their catalyst-based approach has the big advantages that it uses cheap, replenishable reagents and it works well at room temperature and in air — so much so, it can even be carried out safely in a...

2013-01-29 12:43:47

Scientists have developed a way to grow iron-oxidizing bacteria using electricity instead of iron, an advance that will allow them to better study the organisms and could one day be used to turn electricity into fuel. The study will be published on January 29 in mBio®, the online open-access journal of the American Society for Microbiology. The method, called electrochemical cultivation, supplies these bacteria with a steady supply of electrons that the bacteria use to respire, or...

Simulations On Ranger Supercomputer Help Researchers Understand Biofuel Reactions
2012-12-04 12:44:16

Texas Advanced Computing Center, The University of Texas at Austin In a well-known fairy tale, Rumpelstiltskin used magic to weave straw into gold. Today, scientists are reversing that formula – using gold to turn straw (and other forms of biomass) into today's global currency: energy. The magic involves a special nanocatalyst, in which minute particles of gold dot the surface of titanium-oxide. The forces that emerge from the combination of these two materials are strong enough...

Let Fungus Reproduce
2012-07-16 14:27:40

New biogeochemical understanding of manganese oxidation lends insight to environmental remediation Harvard-led researchers have discovered that an Ascomycete fungus that is common in polluted water produces environmentally important minerals during asexual reproduction. The key chemical in the process, superoxide, is a byproduct of fungal growth when the organism produces spores. Once released into the environment, superoxide reacts with the element manganese (Mn), producing a highly...

2012-06-08 09:08:23

Chemists at UCL have discovered a new property of flames, which allows them to control reactions at a solid surface in a flame and opens up a whole new field of chemical innovation. Published in the journal Angewandte Chemie, authors of the new study have discovered their previous understanding of how flames interact with a solid surface was mistaken. For the first time, they have demonstrated that a particular type of chemistry, called redox chemistry, can be accurately controlled at the...

2012-03-07 21:39:11

Researchers at the National Institute of Standards and Technology (NIST) have done a mash-up of two very different experimental techniques–neutron scattering and electrochemical measurements–to enable them to observe structural changes in nanoparticles as they undergo an important type of chemical reaction. Their recently published technique allows them to directly match up particle size, shape and agglomeration with the "redox" chemical properties of the particles. The...

2011-08-30 19:11:07

Cell´s reserve fighting force shrinks with age, new study finds. When the body fights oxidative damage, it calls up a reservist enzyme that protects cells — but only if those cells are relatively young, a study has found. Biologists at USC discovered major declines in the availability of an enzyme, known as the Lon protease, as human cells grow older. The finding may help explain why humans lose energy with age and could point medicine toward new diets or pharmaceuticals...

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2011-06-11 09:07:15

Combining electrochemistry and photovoltaics to clean up oxidation reactions The idea is simple, says Kevin Moeller, PhD, and yet it has huge implications. All we are recommending is using photovoltaic cells (clean energy) to power electrochemical reactions (clean chemistry). Moeller is the first to admit this isn't new science. "But we hope to change the way people do this kind of chemistry by making a connection for them between two existing technologies," he says. To underscore the...


Word of the Day
malpais
  • The ragged surface of a lava-flow.
'Malpais' translates from Spanish as 'bad land.'