An abiotic source of Archean hydrogen peroxide and oxygen that pre-dates oxygenic photosynthesis

Hydrogen peroxide (H2O2) has been proposed as an electron donor for photosynthesis before water, however, the amount of H2O2 available on early Earth was thought to be limited. Here the authors propose a new abiotic pathway wherein abrasion of quartz surfaces would have provided enough H2O2.

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Bibliographic Details
Main Authors: Hongping He, Xiao Wu, Haiyang Xian, Jianxi Zhu, Yiping Yang, Ying Lv, Yiliang Li, Kurt O. Konhauser
Format: article
Language:EN
Published: Nature Portfolio 2021
Subjects:
Q
Online Access:https://doaj.org/article/ba7f10258ed044f2aee93d06b983c050
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Summary:Hydrogen peroxide (H2O2) has been proposed as an electron donor for photosynthesis before water, however, the amount of H2O2 available on early Earth was thought to be limited. Here the authors propose a new abiotic pathway wherein abrasion of quartz surfaces would have provided enough H2O2.