期刊
APPLIED CATALYSIS B-ENVIRONMENTAL
卷 324, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.apcatb.2022.122252
关键词
Hydrogen peroxide; ZIF-67; Oxygen reduction reaction; Oxygen functional groups
We evaluated a facile and efficient approach of improving the activity and selectivity of Co-N-C catalysts by introducing O functional groups at different pyrolysis temperatures. H-cell test showed a H2O2 output of 2170 ppm within 6 hours, meeting the in-situ degradation of antibiotics (Ofloxacin) and offering a reliable on-site environmental treatment option.
Electrochemical production of hydrogen peroxide (H2O2) via 2-electron pathway is the most promising alternative to the anthraquinone process. However, designing and synthesizing electrocatalysts with high activity and high selectivity remains a challenge. Here, we evaluated a facile and efficient approach of improving the catalyst activity and selectivity by introducing O functional group into Co-N-C catalysts, which pyrolyzed at different temperatures. Our analyses showed that the catalyst activity and selectivity were related with the oxygencontaining functional groups and the pyrolysis temperature. H-cell test produced a H2O2 output of 2170 ppm within 6 h, which met the in-situ degradation of antibiotics (Ofloxacin), offering a reliable on-site environmental treatment option.
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