文献类型：期刊文献

英文题名：Interfacial engineering of a vertically stacked graphene/h-BN heterostructure as an efficient electrocatalyst for hydrogen peroxide synthesis

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

第一作者：Zhao, Yuying

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

外文期刊名：MATERIALS HORIZONS

收录：;EI(收录号：20233614681242);Scopus(收录号：2-s2.0-85169588889);WOS:【SCI-EXPANDED(收录号:WOS:001052765100001)】；

基金：This work was supported by the China Postdoctoral Science Foundation (2023M731702), 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

摘要：Recently, it was reported that an in-plane graphene (G)/hexagonal boron nitride (h-BN) (G/h-BN) heterostructure provided the catalytic activity for H2O2 synthesis by the 2 e(-) oxygen reduction reaction (ORR). However, there are few reports on the vertically stacked G/h-BN heterostructure, which refers to the stacking of graphene domains on the surface of h-BN. Herein, a simulated chemical vapor deposition method is proposed for fabricating a heterostructure of abundant vertically stacked G/h-BN by in situ growing graphene quantum dots (GQDs) on porous h-BN sheets. The performance of our vertically stacked heterostructure catalyst is superior to that of reported carbon-based electrocatalysts under an alkaline environment, with an H2O2 selectivity of 90-99% in a wide potential range (0.35 V-0.7 V vs. RHE), over 90% faradaic efficiency, and high mass activity of 1167 mmol g(catalyst)(-1) h(-1). The experimental results and density functional theory (DFT) simulation verified that the vertically stacked heterostructure exhibits an excellent catalytic performance for the 2 e(-) ORR, and the edge B atoms in the B-centered AB stacking model are the most active catalytic sites. This research adequately demonstrates the promising catalytic activity of the vertically stacked G/h-BN heterostructure and provides a facile route for fabricating other vertically stacked heterostructures.