气候变化领域集成服务门户(CCPortal): Unveiling in situ evolved In/In2O3−x heterostructure as the active phase of In2O3 toward efficient electroreduction of CO2 to formate

CCPortal

DOI	10.1016/j.scib.2020.04.022
	Unveiling in situ evolved In/In2O3−x heterostructure as the active phase of In2O3 toward efficient electroreduction of CO2 to formate
	Liang Y.; Zhou W.; Shi Y.; Liu C.; Zhang B.
发表日期	2020
ISSN	20959273
起始页码	1547
结束页码	1554
卷号	65 期号:18
英文摘要	Uncovering the structure evolution and real active species of energy catalytic materials under reaction conditions is important for both understanding structure–activity relationship and constructing electrocatalysts for CO2 electroreduction (CO2ER). And integrating CO2ER with an anodic organic transformation to replace the oxygen evolution reaction is highly desirable. Here, In2O3 is selected as the model material to reveal the surface reconstruction under CO2ER condition. In situ and ex situ results reveal that the electrochemical in situ reconstruction of crystalline In2O3 leads to the formation of crystalline-In/amorphous-In2O3−x heterostructure (In/In2O3−x). In/In2O3−x acts as the real active phase with Faradaic efficiency of ~ 89.2% for the formate, outperforming In (~67.5%). The improved performance can be ascribed to electron-rich In rectified by Schottky effect of In/In2O3−x heterostructure. Impressively, formate and high-value octanenitrile can be simultaneously achieved by integrating CO2ER with octylamine oxidation in an In/In2O3−x‖Ni2P two-electrode electrolyzer. © 2020 Science China Press
关键词	CO2 electroreduction Electrocatalysis Heterostructure Paired reaction Structural restructuring
英文关键词	Carbon dioxide; Electrocatalysts; Electrolytic reduction; Nanocrystalline materials; Oxygen evolution reaction; Catalytic materials; Electro reduction; Electroreduction of CO2; Faradaic efficiencies; Organic transformations; Reaction conditions; Schottky effect; Structure evolution; Indium compounds
语种	英语
来源期刊	Science Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/207119
作者单位	School of Science, Institute of Molecular Plus, Tianjin University, Tianjin, 300072, China; Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Tianjin University, Tianjin, 300072, China
推荐引用方式 GB/T 7714	Liang Y.,Zhou W.,Shi Y.,et al. Unveiling in situ evolved In/In2O3−x heterostructure as the active phase of In2O3 toward efficient electroreduction of CO2 to formate[J],2020,65(18).
APA	Liang Y.,Zhou W.,Shi Y.,Liu C.,&Zhang B..(2020).Unveiling in situ evolved In/In2O3−x heterostructure as the active phase of In2O3 toward efficient electroreduction of CO2 to formate.Science Bulletin,65(18).
MLA	Liang Y.,et al."Unveiling in situ evolved In/In2O3−x heterostructure as the active phase of In2O3 toward efficient electroreduction of CO2 to formate".Science Bulletin 65.18(2020).