文献类型：期刊文献

英文题名：Facile fabrication of carbon dots containing abundant h-BN/graphite heterostructures as efficient electrocatalyst for hydrogen peroxide synthesis

作者：Yuan, Qixin[1] Fan, Mengmeng[1,2] Zhao, Yuying[2] Wu, Jingjie[3] Raj, Jithu[3] Wang, Zeming[4] Wang, Ao[2] Sun, Hao[2] Xu, Xiang[1] Wu, Yuhan[1] Sun, Kang[2] Jiang, Jianchun[2]

第一作者：Yuan, Qixin

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

机构：[1]Nanjing Forestry Univ, Coll Chem Engn, Int Innovat Ctr Forest Chem & Mat, Jiangsu Coinnovat Ctr Efficient Proc & Utilizat Fo, Nanjing 210037, Peoples R China;[2]Chinese Acad Forestry, Inst Chem Ind Forest Prod, Key Lab Biomass Energy & Mat, Jiangsu Coinnovat Ctr Efficient Proc & Utilizat Fo, Nanjing 210042, Jiangsu, Peoples R China;[3]Univ Cincinnati, Dept Chem & Environm Engn, Cincinnati, OH 45221 USA;[4]Shanghai Univ, Sch Environm & Chem Engn, Inst Nanochem & Nanobiol, Shanghai 200444, Peoples R China

年份：2023

卷号：324

外文期刊名：APPLIED CATALYSIS B-ENVIRONMENTAL

收录：;EI(收录号：20224813185668);Scopus(收录号：2-s2.0-85142754815);WOS:【SCI-EXPANDED(收录号:WOS:000891647900001)】；

基金：This work was supported by "National Natural Science Foundation of China (No. 51902162) ", the Foundation Research Project of Jiangsu Province (BK20221338) , Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, 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) .

语种：英文

外文关键词：Carbon dots; H-BN; graphite heterostructure; 2e-pathway; Oxygen reduction reaction; HO2-synthesis

摘要：Carbon dots with hexagonal boron nitride/graphite (h-BN/G) heterostructure are prepared and used as an efficient electrocatalyst for hydrogen peroxide synthesis by 2 e- oxygen reduction reaction (ORR). This abundant heterostructure are fabricated by sucrose-assisted h-BN exfoliating followed by graphite growing progress. The catalytic activity of the carbon dots is superior to the reported carbon-based electrocatalysts in an alkaline environment, with the achieved selectivity of 88%-95% at 0.45-0.75 V vs. RHE, the mass activity of 960 mmol gcatalyst -1 h-1 and over 90% Faradaic efficiency. The experimental results and density functional theory simulation demonstrate that the h-BN/G heterostructure possesses outstanding catalytic performance to 2 e- ORR, and the electron-deficient B atoms at the heterostructure act as the key active sites. This research emphasizes the promise of heterostructure in highly efficient carbon-based electrocatalyst and provides a facile method for fabricating other heterostructures.