文献类型：期刊文献

英文题名：Interfacial Engineering of 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[2]

第一作者：Zhao, Yuying

机构：[1] Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, International Innovation Center for Forest Chemicals and Materials, College of Chemical Engineering, Nanjing Forestry University, Nanjing, 210037, China; [2] Key Lab of Biomass Energy and Material, Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Jiangsu Province, Nanjing, 210042, China; [3] Institute of Nanochemistry and Nanobiology, School of Environmental and Chemical Engineering, Shanghai University, Shanghai, 200444, China

年份：2022

外文期刊名：SSRN

收录：EI(收录号：20220453433)

语种：英文

外文关键词：Boron nitride - Catalyst activity - Catalyst selectivity - Density functional theory - Electrocatalysis - Electrocatalysts - Electrolytic reduction - Graphene - Oxidation - Oxygen - Semiconductor quantum dots

摘要：In-plane graphene/h-BN (G/h-BN) heterostructure was reported to be the catalytic activity in the field of electrocatalysis. However, there is rare report for the vertically-stacked G/h-BN heterostructure. Herein, we fabricate abundant vertically-stacked G/h-BN heterostructure by in-situ growing graphene quantum dots (GQDs) on porous h-BN sheets used for H2O2 synthesis by 2 e- oxygen reduction reaction (ORR). The catalytic performance of vertically-stacked heterostructure catalyst is superior to the reported carbon-based electrocatalysts in an alkaline environment, with H2O2 selectivity of 90%-99% in 0.35 V-0.7 V vs. RHE, over 90% faradaic efficiency and high mass activity of 1167 mmolgcatalyst-1 h-1. The density functional theory simulations verify that the edge B atoms in the B-centered AB stacking model are the most active catalytic sites. This research well demonstrates the promising catalytic activity for the vertically-stacked G/h-BN heterostructure and provides a facile route for fabricating other vertically-stacked heterostructures. ? 2022, The Authors. All rights reserved.