文献类型：期刊文献

英文题名：Hydroxylated Boron Crystal Domain-Modulated Heterostructure Carbon Catalysts for Efficient Hydrogen Peroxide Generation

作者：Wu, Yuhan[1] Yuan, Qixin[1] Zhao, Yuying[2,3,4] Sun, Kang[2,3] Sun, Hao[2,3] Wang, Kui[2,3] Hu, Shengchun[2,3] Waterhouse, Geoffrey I. N.[4] Wu, Jingjie[5] Wang, Ziyun[4] Jiang, Jianchun[2,3] Fan, Mengmeng[1,2,3]

第一作者：Wu, Yuhan

通信作者：Fan, MM[1];Sun, K[2];Jiang, JC[2];Fan, MM[2];Sun, K[3];Jiang, JC[3];Fan, MM[3];Wang, ZY[4]

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, Key Lab Biomass Energy & Mat, Nanjing 210042, Jiangsu, Peoples R China;[3]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Jiangsu Coinnovat Ctr Efficient Proc & Utilizat Fo, Nanjing 210042, Peoples R China;[4]Univ Auckland, Sch Chem Sci, Auckland 1010, New Zealand;[5]Univ Cincinnati, Dept Chem & Environm Engn, Cincinnati, OH 45221 USA

年份：2025

外文期刊名：JOURNAL OF THE AMERICAN CHEMICAL SOCIETY

收录：;EI(收录号：20252418609835);Scopus(收录号：2-s2.0-105007878502);WOS:【SCI-EXPANDED(收录号:WOS:001507893500001)】；

基金：This work was supported by the National Natural Science Foundation of China (No. 32371810), the China Postdoctoral Science Foundation (2023M731702), the Foundation Research Project of Jiangsu Province (BK20221338), the Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, the International Innovation Center for Forest Chemicals and Materials, Nanjing Forestry University, merit-based funding for Nanjing innovation and technology projects, and the Foundation of Jiangsu Key Lab of Biomass Energy and Material (JSBEM-S-202101). The computational study is supported by the Marsden Fund Council from Government funding (21-UOA-237) and Catalyst: Seeding General Grant (22-UOA-031-CGS), managed by Royal Society Te Aparangi. All DFT calculations were carried out on the New Zealand eScience Infrastructure (NeSI) high-performance computing facilities.

语种：英文

外文关键词：Boron - Carbon - Catalyst activity - Electrocatalysis - Electrocatalysts - Electrolysis - Electrolytic reduction - Heterojunctions - Hydrogen peroxide - Hydrogen production - Mass transfer

摘要：Metal-free heterostructure carbon catalysts are promising alternatives to metal-based catalysts for electrochemical hydrogen peroxide (H2O2) synthesis via the two-electron oxygen reduction reaction (2e(-) ORR). However, one appropriate nanocrystal type is being sought to resolve a concern at industrial-level current densities. Herein, nano boron crystal domains (B-n) overcame the stability limitations of traditional carbon-based electrocatalysts for sustainable H2O2 production and industrial application. A B-n-C catalyst offered multiple active sites, while the nano B-n imparted an O-2 enrichment effect enhancing mass transfer during ORR electrocatalysis. The B-n-C exhibited a very high mass activity (11.6/10.7 mol g(cat)(-1) h(-1)) in alkaline/neutral electrolytes and showed negligible loss in activity and Faradaic efficiency (over 90%) during 100 h continuous electrolysis at high current density (>300 mA cm(-2)). Density functional theory and in situ Raman experiments demonstrated that the -OH groups connecting nano B-n provided an inductive effect on B atoms in the carbon matrix, alleviating a binding strength that is too strong with *OOH intermediate.