News tagged with electrochemistry
Electrochemistry
Electrochemistry is a branch of chemistry that studies chemical reactions which take place in a solution at the interface of an electron conductor (a metal or a semiconductor) and an ionic conductor (the electrolyte), and which involve electron transfer between the electrode and the electrolyte or species in solution.
If a chemical reaction is driven by an external applied voltage, as in electrolysis, or if a voltage is created by a chemical reaction as in a battery, it is an electrochemical reaction. In contrast, chemical reactions where electrons are transferred between molecules are called oxidation/reduction (redox) reactions. In general, electrochemistry deals with situations where oxidation and reduction reactions are separated in space or time, connected by an external electric circuit.
For more information about Electrochemistry, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.
Fuel cells show potential
National Physical Laboratory scientists have developed an innovative fuel cell reference electrode that has been used to map changes in electrode potential inside a working polymer electrolyte membrane (PEM) ...
Mar 20, 2012 |
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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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Better batteries from the bottom up
(PhysOrg.com) -- Rice University researchers have moved a step closer to creating robust, three-dimensional microbatteries that would charge faster and hold other advantages over conventional lithium-ion batteries. ...
Dec 09, 2010 |
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New propulsion system for micro-objects
A new propulsion method for metallic micro- and nano-objects has been developed by French researchers from the Institute of Molecular Sciences. The process is based on the novel concept of bipolar electrochemistry: ...
Nov 04, 2010 |
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New imaging technology brings trace chemicals into focus (w/ Video)
(PhysOrg.com) -- Arizona State Univeristy scientist N.J. Tao and his colleagues at the Biodesign Institute have hit on a new, versatile method to significantly improve the detection of trace chemicals important ...
Chemistry / Analytical Chemistry
Mar 11, 2010 |
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A Search for Stability for Platinum Catalysts
(PhysOrg.com) -- A new carbon support that greatly increases the durability of proton-exchange membrane fuel cells has been developed by scientists at Pacific Northwest National Laboratory and Princeton University. ...
Nanotechnology / Nanomaterials
Dec 17, 2009 |
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Scientists to go where no chemists has gone before
Scientists at The University of Nottingham have overcome one of the significant research challenges facing electrochemists. For the first time they have found a way of probing right into the heart of an electrochemical reaction.
Sep 28, 2009 |
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