Unlocking Bifunctional Electrocatalytic Activity for CO2 Reduction Reaction by Win-Win Metal-Oxide Cooperation

doi:10.1021/acsenergylett.8b01767

CORC > 金属研究所 > 中国科学院金属研究所

	Unlocking Bifunctional Electrocatalytic Activity for CO2 Reduction Reaction by Win-Win Metal-Oxide Cooperation
	Cai, Z 1,2; Wu, YS ; Wu, ZS ; Yin, LC ; Weng, Z 1,2; Zhong, YR ; Xu, WW ; Sun, XM ; Wang, HL
刊名	ACS ENERGY LETTERS
	2018-11-01
卷号	3 期号:11 页码:2816-2822
ISSN号	2380-8195
DOI	10.1021/acsenergylett.8b01767
英文摘要	Understanding how remarkable properties of materials emerge from complex interactions of their constituents and designing advanced material structures to render desired properties are grand challenges. Metal-oxide interactions are frequently utilized to improve catalytic properties but are often limited to situations where only one component is facilitated by the other. In this work, we demonstrate highly cooperative win-win metal-oxide interactions that enable unprecedented catalytic functionalities for electrochemical CO2 reduction reactions. In a single SnOx/Ag catalyst, the oxide promotes the metal in the CO production mode, and meanwhile the metal promotes the oxide in the HCOOH production mode, achieving potential-dependent bifunctional CO2 conversion to fuels and chemicals with H-2 evolution suppressed in the entire potential window. Spectroscopic studies and computational simulations reveal that electron transfer from Ag to SnOx and dual-site cooperative binding for reaction intermediates at the SnOx/Ag interface are responsible for stabilizing the key intermediate in the CO pathway, changing the potential-limiting step in the HCOOH pathway, and increasing the kinetic barrier in the H-2 evolution pathway, together leading to highly synergistic CO2 electroreduction.
学科主题	Chemistry, Physical ; Electrochemistry ; Energy & Fuels ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
语种	英语
WOS记录号	WOS:000450374600023
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/79843]
专题	金属研究所_中国科学院金属研究所
作者单位	1.Beijing Univ Chem Technol, State Key Lab Chem Resource Engn, Beijing Adv Innovat Ctr Soft Matter Sci & Engn, Beijing 100029, Peoples R China 2.Yale Univ, Dept Chem, West Haven, CT 06516 USA 3.Yale Univ, Energy Sci Inst, West Haven, CT 06516 USA 4.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 5.Beijing Univ Chem Technol, Coll Energy, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Cai, Z,Wu, YS,Wu, ZS,et al. Unlocking Bifunctional Electrocatalytic Activity for CO2 Reduction Reaction by Win-Win Metal-Oxide Cooperation[J]. ACS ENERGY LETTERS,2018,3(11):2816-2822.
APA	Cai, Z.,Wu, YS.,Wu, ZS.,Yin, LC.,Weng, Z.,...&Wang, HL.(2018).Unlocking Bifunctional Electrocatalytic Activity for CO2 Reduction Reaction by Win-Win Metal-Oxide Cooperation.ACS ENERGY LETTERS,3(11),2816-2822.
MLA	Cai, Z,et al."Unlocking Bifunctional Electrocatalytic Activity for CO2 Reduction Reaction by Win-Win Metal-Oxide Cooperation".ACS ENERGY LETTERS 3.11(2018):2816-2822.