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Amorphous carbon is unstructured, reactive, and free of crystals. By breaking dangling hydrogen bonds, amorphous carbon compounds can be stabilised. Some short-range organisation can be seen, just like in other amorphous substances. For general amorphous carbon, aC is a common abbreviation.
Carbon materials lacking long-range crystalline organisation are referred to as amorphous carbon. There is short-range order, but it differs from the graphite and diamond lattices in terms of the interatomic distances and/or interbonding angles.
Any noncrystalline substance that is amorphous has atoms and molecules that are not arranged in a clear lattice structure. Glass, plastic, and gel are examples of such substances. Coal contains amorphous carbon. In the case of an amorphous solid, the atoms are not arranged in a specific pattern. Amorphous carbon is the non-crystalline structure of coal.
These materials have been employed in a variety of applications for the textile, plastic, and health-care industries, as well as gas and water filters, electrical applications, and food packaging, due to their exceptional and unique qualities. Charcoal, coal, soot, gas carbon, and coke are examples of amorphous carbon.
The Global Amorphous Carbon Market accounted for $XX Billion in 2022 and is anticipated to reach $XX Billion by 2030, registering a CAGR of XX% from 2023 to 2030.
Biogenic formation of amorphous carbon by anaerobic methanotrophs and select methanogens. There are several structural variations of elemental carbon, including graphite, diamond, fullerenes, and amorphous carbon. These substances are created in nature by abiotic chemical reactions that take place at extreme temperatures and pressures, yet they are typically thought to be inaccessible to biological synthesis or breakdown.
Here, elemental carbon from consortia of anaerobic methanotrophic archaea (ANME) and sulphate-reducing bacteria (SRB), which together perform the anaerobic oxidation of methane (AOM), is found and characterised. AOM consortia ANME-1a/HotSeep-1 and ANME-2a/c/Seep-SRB both create a black substance with traits resembling amorphous carbon and disordered graphite.
Stable isotope analysis confirmed that the carbon is produced by microbes during AOM. Furthermore, it was discovered that certain methanogens create amorphous carbon with properties comparable to that of AOM consortia. Biogenic amorphous carbon may behave as a conductive element to aid electron transport, or the carbon’s redox active functional groups may act as electron donors and acceptors.
