Oxidation and reduction are complementary electron-transfer processes that underpin redox chemistry and many biological and industrial transformations. Oxidation is defined as the loss of electrons, an increase in oxidation state, or, in many covalent systems, gain of electronegative substituents (e.g., oxygen) or loss of electropositive ones (e.g., hydrogen). Reduction is the gain of electrons, a decrease in oxidation state, or the converse change in bonding pattern. In any redox reaction, electrons are conserved and transferred from a reductant (electron donor) to an oxidant (electron acceptor), often mediated by redox couples, half-reactions, and characterized quantitatively by standard reduction potentials.
A Russian-Belorussian research team has developed a new tungsten oxide–based gas sensing material that shows high sensitivity to carbon monoxide, nitrogen dioxide and acetone. The new material's gas sensing response was nine ...
Nanomaterials
May 27, 2022
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A team of researchers affiliated with entities in the Czech Republic, Greece and Germany has developed a way to reduce nitroarenes to amines that does not produce toxic reagents and does not involve extreme conditions. They've ...
The key to chemical reactions is in the name—there needs to be something that causes the chemicals to react to one another. Called a catalyst, this component induces or speeds up reactions in a controlled manner to produce ...
Nanomaterials
Mar 23, 2022
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120
Aluminum is a highly reactive metal that can strip oxygen from water molecules to generate hydrogen gas. Its widespread use in products that get wet poses no danger because aluminum instantly reacts with air to acquire a ...
Nanomaterials
Feb 18, 2022
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862
In the chemical industry, the selective cleavage and oxidation of carbon–hydrogen (C–H) bonds, called "oxidative C–H functionalization" is an essential step in the production of many solvents, polymers, and surfactants, as ...
Nanomaterials
Feb 7, 2022
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Researchers from the Ruhr-Universität Bochum, the University of Duisburg-Essen and the Max Planck Institute for Chemical Energy Conversion in Mülheim an der Ruhr cooperated on the project as part of the Collaborative Research ...
Nanophysics
Jan 10, 2022
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The involvement between electron transfer (ET) and catalytic reaction at electrocatalyst surface makes electrochemical process challenging to understand and control. How to experimentally determine ET process occurring at ...
Nanomaterials
Nov 29, 2021
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84
A research group led by Prof. Xiao Jianping from the Dalian Institute of Chemical Physics (DICP) of the Chinese Academy of Sciences (CAS) and their collaborators synthesized a single-atom Pb-alloyed Cu catalyst (Pb1Cu), which ...
Nanomaterials
Sep 16, 2021
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Room-temperature catalytic oxidation is an efficient approach to converting formaldehyde (HCHO) into harmless CO2 by using reactive oxygen species (ROS) on the surface of noble-metal nanocatalysts.
Bio & Medicine
Jun 7, 2021
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