Heterophase engineering of SnO2/Sn3O4 drives enhanced carbon dioxide electrocatalytic reduction to formic acid

作     者：Jun Wu Ying Xie Shichao Du Zhiyu Ren Peng Yu Xiuwen Wang Guiling Wang Honggang Fu 吴君;谢颖;杜世超;任志宇;于鹏;王秀文;王贵领;付宏刚

作者机构：Key Laboratory of Superlight Materials and Surface Technology of Ministry of EducationCollege of Materials Science and Chemical EngineeringHarbin Engineering UniversityHarbin 150001China Key Laboratory of Functional Inorganic Material ChemistryMinistry of Education of ChinaSchool of Chemistry and Materials ScienceHeilongjiang UniversityHarbin 150080China 

基　　金：the National Natural Science Foundation of China(21573062,21631004 and 21901065) the Natural Science Foundation of Heilongjiang Province(B2018008) the Youth Science and Technology Innovation Team Project of Heilongjiang Province(2018-KYYWF-1593) the University Nursing Program for Young Scholars with Creative Talents in Heilongjiang Province(UNPYSCT-2018009) 

出 版 物：《Science China Materials》 (中国科学（材料科学（英文版）)

年 卷 期：2020年第63卷第11期

页      码：2314-2324页

摘      要：Sn-based electrocatalysts have been gaining increasing attention due to their potential contribution in the conversion of CO2 into HCOOH driven by sustainable energy sources;however,their actual capability to catalyze CO2 reduction reaction(CO2RR)still cannot meet the requirements of commercial-scale *** developing Snbased catalyst is of vital ***,the sheet-like heterophase Sn O2/Sn3O4 with a high density of phase interfaces has been first engineered by a facile hydrothermal process,with Sn3O4 as the dominant *** evidences from experiments and theoretical simulation indicate that the charge redistribution and built-in electric field at heterophase interfaces boost CO2 adsorption and HCOO*formation,accelerate the charge transfer between the catalysts and reactants,and ultimately greatly elevate the intrinsic activity of the heterophase Sn O2/Sn3O4 towards CO2 ***,the in-situ generated porous structure and metal Sn during CO2 RR improve the mass transmission within the interlayer volume and the conductivity of Sn O2/*** heterophase Sn O2/Sn3O4 displays high activity and selectivity for CO2 RR,achieving an improvement in CO2 reduction current density,88.3%Faradaic efficiency of HCOOH conversion at-0.9 VRHE,along with a long-term tolerance in CO2 *** study demonstrates that heterophase interface engineering is an efficient strategy to regulate advanced catalysts for different applications.

主 题 词：heterophase engineering Sn O2/Sn3O4 electrocatalytic CO2reduction reaction formic acid density functional theory calculation 

学科分类：083002[083002] 0830[工学-生物工程类] 081702[081702] 08[工学] 0817[工学-轻工类] 

核心收录：

D　O　I：10.1007/s40843-020-1361-3

馆 藏 号：203980904...