文献类型：期刊文献

英文题名：Atomic Pd Sites on CeO2 Nanorods for Highly Selective Hydrogen Peroxide Generation and Efficient Degradation of Organic Pollutants

作者：Chai, Manqing[1,2];Xing, Run-Jia[1,2];Chen, Jianfu[1,2];Su, Zi-Xiang[1,2];Wei, Hehe[1,2];Zhu, Hai-Wei[1,2];Gong, Xue-Qing

机构：[1]East China Univ Sci & Technol, Ctr Computat Chem, State Key Lab Green Chem Engn & Ind Catalysis, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Chem & Mol Engn, Res Inst Ind Catalysis, Shanghai 200237, Peoples R China

年份：2025

卷号：13

期号：3

起止页码：1391

外文期刊名：ACS SUSTAINABLE CHEMISTRY & ENGINEERING

收录：;EI(收录号：20250317699153);WOS:【SCI-EXPANDED(收录号:WOS:001397196200001)】；

基金：This work was supported by the National Key R&D Program of China (2021YFA1500700) and the National Natural Science Foundation of China (21825301, 22102057, 22203030, 92045303, 22473043, 52302058).

语种：英文

外文关键词：hydrogen peroxide; atomically dispersed Pd; cerium dioxide; electrocatalysis; oxygen reductionreaction

摘要：Electrochemical synthesis of hydrogen peroxide (H2O2) has been emerging as a green alternative technology of the traditional anthraquinone process, though the selectivity and yield of H(2)O(2 )are still hindered by the current catalysts with high cost or difficulties in precise and specific coordination environments. Herein, the boosted selectivity of electrochemical synthesis toward H2O2 with 82% Faradaic efficiency and high stability for above >20 h is manufactured by the atomic Pd sites being supported on the CeO2 nanorods (Pd-1/CeO2 ). The fabrication of atomically dispersed Pd sites and charge redistribution between Pd-1 and CeO2 support result in the enhancement of OOH* coverage, confirmed by in situ characterization techniques, thereby improving the H(2)O(2 )selectivity compared with Pd nanoparticles supported on CeO2 and pure CeO2 catalysts. Furthermore, with a promising H(2)O(2 )yield of 9.78 mol g(catalyst) (-1 )h(-1 ) and 80% Faraday efficiency at the current density of 100 mA cm(-2), Pd-1/CeO2 demonstrated efficient on-site degradation of rhodamine B and tetracycline.