CO2 Electroreduction on Au/TiC: Enhanced Activity Due to Metal-Support Interaction

被引：75

作者：

Kim, Jun-Hyuk ^{[1
]}

Woo, Hyunje ^{[1
]}

Choi, Jihwan ^{[2
]}

Jung, Hyun-Woo ^{[2
]}

Kim, Yong-Tae ^{[2
]}

机构：

[1] Pusan Natl Univ, Hybrid Mat Solut Natl Core Res Ctr NCRC, Busan 609735, South Korea

[2] Pusan Natl Univ, Sch Mech Engn, Busan 609735, South Korea

来源：

ACS CATALYSIS | 2017年 / 7卷 / 03期

基金：

新加坡国家研究基金会;

关键词：

electroreduction; metal-support interaction; SURFACE ELECTRONIC-STRUCTURE; CARBON-DIOXIDE; ELECTROCHEMICAL REDUCTION; X-RAY; AU NANOPARTICLES; OXYGEN REDUCTION; CATALYSTS; ELECTROCATALYSTS; TRANSITION; HYDROGENATION;

D O I：

10.1021/acscatal.6b03706

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

CO2 electroreduction technology is considered an important example of efficient carbon-containing energy sources. Herein, we introduce the metal support interaction effect with a TiC support for Au/TiC electrocatalysis, which exhibits considerably enhanced activity and selectivity for electroreduction of CO2 to CO while suppressing H-2 evolution. With this catalyst, an important electronic effect for CO2 electroreduction was clearly elucidated. Local sp-band charge transfer and d-band shifts play an important role in bonding with both CO and COOH adsorbates. Furthermore, the ideal surface interface between Ti and Au could inevitably maximize the electronic effect, thereby enhancing the catalytic activity of Au/TiC and subsequent CO production.

引用

页码：2101 / 2106

页数：6

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