Details

Autor(en) / Beteiligte

• Ye, Jie
• Hu, Andong
• Gao, Chao
• Li, Fengqi
• Li, Lei
• Guo, Yulin
• Ren, Guoping
• Li, Bing
• Rensing, Christopher
• Nealson, Kenneth H.
• Zhou, Shungui
• Xiong, Yujie

Titel

Abiotic Methane Production Driven by Ubiquitous Non‐Fenton‐Type Reactive Oxygen Species

Ist Teil von

• Angewandte Chemie, 2024-05, Vol.136 (20), p.n/a

Ort / Verlag

Weinheim: Wiley Subscription Services, Inc

Erscheinungsjahr

2024

Quelle

Wiley-Blackwell Journals

Beschreibungen/Notizen

• Abiotic CH4 production driven by Fenton‐type reactive oxygen species (ROS) has been confirmed to be an indispensable component of the atmospheric CH4 budget. While the chemical reactions independent of Fenton chemistry to ROS are ubiquitous in nature, it remains unknown whether the produced ROS can drive abiotic CH4 production. Here, we first demonstrated the abiotic CH4 production at the soil‐water interface under illumination. Leveraging this finding, polymeric carbon nitrides (CNx) as a typical analogue of natural geobattery material and dimethyl sulfoxide (DMSO) as a natural methyl donor were used to unravel the underlying mechanisms. We revealed that the ROS, photocatalytically produced by CNx, can oxidize DMSO into CH4 with a high selectivity of 91.5 %. Such an abiotic CH4 production process was further expanded to various non‐Fenton‐type reaction systems, such as electrocatalysis, pyrocatalysis and sonocatalysis. This work provides insights into the geochemical cycle of abiotic CH4, and offers a new route to CH4 production via integrated energy development. We elucidate a ubiquitous yet previously unappreciated source of abiotic CH4 production via non‐Fenton chemistry reactions, which not only substantially broadens CH4 production in complex natural environments, but also offers an innovative, simple and sustainable approach for engineering CH4 production as a high‐value energy resources.