A new chemical process can essentially vaporize plastics that dominate the waste stream today and turn them into hydrocarbon building blocks for new plastics.
Polymers
Aug 29, 2024
0
69
A study conducted at the University of São Paulo (USP) has investigated the extent to which climate-smart agriculture (CSA), an integrated approach involving methods and practices designed to make farming more sustainable ...
Environment
Aug 28, 2024
0
43
An international group of researchers has developed a novel approach that enhances the efficiency of the oxygen evolution reaction (OER), a key process in renewable energy technologies. By introducing rare earth single atoms ...
Nanomaterials
Aug 28, 2024
0
15
A unique quantum effect in biology could be the key to understanding a common marker of Alzheimer's, raising questions about current assumptions of the disease and informing the search for a cure.
Optics & Photonics
Aug 28, 2024
0
77
Greenhouse gas concentrations, the global temperature across land and the ocean, global sea level, and ocean heat content all reached record highs in 2023, according to the 34th annual State of the Climate report.
Environment
Aug 27, 2024
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28
Researchers have made a discovery in the field of water pollution control. They have developed a new technique using single-atom catalysts (SACs) within a Fenton-like catalytic system that significantly improves the efficiency ...
Analytical Chemistry
Aug 27, 2024
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121
Drought is a major threat to walnut production globally, often resulting in lower yields and weaker trees. While grafting has traditionally been used to improve the resilience of fruit and nut trees, the exact mechanisms ...
Biotechnology
Aug 26, 2024
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9
The ceramic produced in Prof. Igor Lubomirsky's lab at the Weizmann Institute of Science seemed too good to be true. It belongs to a class of materials that are the backbone of many essential technologies but that unfortunately ...
Materials Science
Aug 24, 2024
0
10
Festival season is in full flow, and like any self-respecting plant-soil biogeochemist attending a local music festival, I'm curious about how these outdoor events might modify important nutrient cycles.
Ecology
Aug 23, 2024
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42
It has long been known that nitrogen deposition, where nitrogen is released from the atmosphere into soil or water, can lead to biodiversity loss on a small scale. New research shows that this effect can also be seen in larger ...
Ecology
Aug 22, 2024
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11
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.
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