Energy & Green Tech
What determines the cycle life of batteries? And, more importantly, how can we extend it? An international research team led by TU Delft has discovered that local disorder in the oxide cathode material increases the number ...
May 8, 2024
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Electronics & Semiconductors
Researchers have collaborated on the development of a tellurium-selenium composite oxide semiconductor material. Their efforts led to the successful creation of a high-performance and highly stable p-type thin-film transistor ...
Apr 26, 2024
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26
Electronics & Semiconductors
Researchers have found a way to super-charge the 'engine' of sustainable fuel generation—by giving the materials a little twist.
Apr 24, 2024
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37
Engineering
Researchers from Skoltech and their colleagues have improved the properties of a carbon-based electrode material by exposing it to air plasma. Such treatment turned out to enhance electrode performance, which is the limiting ...
Apr 22, 2024
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105
Energy & Green Tech
Oxide ion conductors used in solid-state fuel cells often fail to reach full potential when operating at temperatures below 500 oC, but researchers from Tokyo Tech have recently found a solution to this problem. They demonstrated ...
Apr 10, 2024
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10
Engineering
Two-dimensional (2D) superconducting materials have been found to be promising for the development of miniaturized optoelectronic devices. To perform well while consuming less energy, however, these smaller devices require ...
Electronics & Semiconductors
A research team led by Prof. Kwon Hyuk-jun of the DGIST Department of Electrical Engineering and Computer Science has developed a next-generation AI semiconductor technology that mimics the human brain's efficiency in AI ...
Mar 29, 2024
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138
Energy & Green Tech
Flexible solar cells have many potential applications in aerospace and flexible electronics, but low energy conversion efficiency has limited their practical use. A new manufacturing method has increased the power efficiency ...
Mar 27, 2024
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43
Engineering
A research team led by Prof. Meng Guowen and Prof. Han Fangming from the Hefei Institutes of Physical Science of the Chinese Academy of Sciences, together with Prof. Wei Bingqing from the University of Delaware, miniaturized ...
Mar 19, 2024
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94
Energy & Green Tech
Lithium-ion batteries are widely used in various applications but need improved binders to enhance their performance to meet evolving demands. This is because silicon oxide (SiO), a promising anode material due to its high ...
Mar 1, 2024
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Redox (shorthand for reduction-oxidation reaction) describes all chemical reactions in which atoms have their oxidation number (oxidation state) changed. This can be either a simple redox process such as the oxidation of carbon to yield carbon dioxide or the reduction of carbon by hydrogen to yield methane (CH4), or it can be a complex process such as the oxidation of sugar in the human body through a series of very complex electron transfer processes.
The term redox comes from the two concepts of reduction and oxidation. It can be explained in simple terms:
Though sufficient for many purposes, these descriptions are not precisely correct. Oxidation and reduction properly refer to a change in oxidation number — the actual transfer of electrons may never occur. Thus, oxidation is better defined as an increase in oxidation number, and reduction as a decrease in oxidation number. In practice, the transfer of electrons will always cause a change in oxidation number, but there are many reactions that are classed as "redox" even though no electron transfer occurs (such as those involving covalent bonds).
Non-redox reactions, which do not involve changes in formal charge, are known as metathesis reactions.
This text uses material from Wikipedia, licensed under CC BY-SA
