Zijin Wang, Qing-Nan Wang, Weiguang Ma, Tiefeng Liu, Wei Zhang, Panwang Zhou, Mingrun Li, Xinyi Liu, Qingbo Chang, Haibing Zheng, Ben Chang, Can Li
Hydrogen sulfide (H2 S), a toxic gas abundant in natural gas fields and refineries, is currently being removed mainly via the Claus process. However, the emission of sulfur-containing pollutants is hard to be prevented and the hydrogen element is combined to water. Herein, we report an electron-mediated off-field electrocatalysis approach (OFEC) for complete splitting of H2 S into H2 and S under ambient conditions. Fe(III)/Fe(II) and V(II)/V(III) redox mediators are used to fulfill the cycles for H2 S oxidation and H2 production, respectively...
April 15, 2024: Environmental Science & Technology