文献类型：期刊文献

英文题名：Boron-Sulfur Pairs for Highly Active 2e^- Oxygen Reduction Reaction to Electrochemically Synthesize Hydrogen Peroxide

作者：Wu, Yuhan[1] Yuan, Qixin[1] Zhao, Yuying[2] Xu, Xiang[1] Xu, Jing[1] Wang, Yan[1] Sun, Kang[2] Wang, Ao[2] Sun, Hao[2] Li, Bei[2] Xu, Ruting[2] Wang, Zeming[3] Jiang, Jianchun[2] Fan, Mengmeng[1,2]

第一作者：Wu, Yuhan

通信作者：Fan, MM[1];Fan, MM[2]

机构：[1]Nanjing Forestry Univ, Coll Chem Engn, Jiangsu Coinnovat Ctr Efficient Proc & Utilizat Fo, Int Innovat Ctr Forest Chem & Mat, Nanjing 210037, Peoples R China;[2]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Jiangsu Coinnovat Ctr Efficient Proc & Utilizat Fo, Key Lab Biomass Energy & Mat, Nanjing 210042, Jiangsu, Peoples R China;[3]Shanghai Univ, Inst Nanochem & Nanobiol, Sch Environm & Chem Engn, Shanghai 200444, Peoples R China

年份：2023

卷号：11

期号：36

起止页码：13363-13373

外文期刊名：ACS SUSTAINABLE CHEMISTRY & ENGINEERING

收录：;WOS:【SCI-EXPANDED(收录号:WOS:001190733600001)】；

基金：M.F. acknowledges the support to this research fromthe Foundation Research Project of Jiangsu Province (BK20221338),China Postdoctoral Science Foundation (No. 2023M731702), NationalNatural Science Foundation of China (No. 32371810), Key Lab. of BiomassEnergy and Material, Jiangsu Province (JSBEM-S-202315), and JiangsuCo-Innovation Center of Efficient Processing and Utilization of ForestResources, International Innovation Center for Forest Chemicals andMaterials, Nanjing Forestry University, the Foundation of JiangsuKey Lab of Biomass Energy and Material (JSBEM-S-202101).

语种：英文

外文关键词：boron-sulfur pair; electrocatalyst; two-electron; oxygen reduction reaction; hydrogenperoxide

摘要：Past decade has witnessed the great improvement of carbon-based dual-single metal-site electrocatalysts. However, there are rare reports exploring the enhanced effect of a nonmetallic "dual-site" in carbon-based catalysts. Herein, a "H3BO3 template" method is proposed to fabricate highly active B-S pairs dispersed on a hierarchically microporous/mesoporous carbon matrix to electrochemically synthesize hydrogen peroxide by two-electron oxygen reduction reaction. Under the synergistic effect of B-S pairs and advantageous nanostructures, the catalytic performance outperforms the reported metal-free carbon catalysts in alkaline electrolytes, especially, with a high HO2 - selectivity of 90-94% at a wide potential range of 0.3-0.7 V versus reversible hydrogen electrode (RHE) using a rotating ring-disk electrode, Faradaic efficiency of over 90% during 11 h stability testing, and high mass activity of 756 mmol gcatalyst -1 h(-1) in a flow cell. Density functional theory demonstrates that the carbon atoms nearby B-S pairs exhibit predominant catalytic sites. This paper proposes a new approach to distinctly improve the catalytic performance by dual heteroatom pairs.