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Mechanochemical generation of perchlorate

Lookup NU author(s): Dr John EdgarORCiD, Dr Jamie Gould, Dr Jon Telling



This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).


Perchlorate (ClO4- ) is widespread in the solar system having been detected on Earth, on Mars, in chondritemeteorites and in lunar samples. On Mars, perchlorates expand the potential for habitable conditions by loweringthe freezing point of liquid water in the formation of brines. In future manned space exploration their presenceposes a hazard to human health, however, it also represents opportunities as a source of oxygen and fuel. Despitetheir prevalence, the mechanism(s) of perchlorate formation in different solar system environments are poorlyunderstood. Here we demonstrate that perchlorate can be generated through the mechanical activation of silicatesin the presence of chloride.

Publication metadata

Author(s): Edgar JO, Gould JA, Badreshany K, Telling J

Publication type: Article

Publication status: Published

Journal: Icarus

Year: 2022

Volume: 387

Print publication date: 15/11/2022

Online publication date: 30/08/2022

Acceptance date: 19/07/2022

Date deposited: 02/08/2022

ISSN (print): 0019-1035

Publisher: Elsevier

URL: https://doi. org/10.1016/j.icarus.2022.115202

DOI: 10.1016/j.icarus.2022.115202


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Funder referenceFunder name
NE/S001670/1Natural Environment Research Council (NERC)