A Co3O4-CDots-C3N4 three component electrocatalyst design concept for efficient and tunable CO2 reduction to syngas

被引：161

作者：

Guo, Sijie ^{[1
]}

Zhao, Siqi ^{[1
]}

Wu, Xiuqin ^{[1
]}

Li, Hao ^{[1
]}

Zhou, Yunjie ^{[1
]}

Zhu, Cheng ^{[1
]}

Yang, Nianjun ^{[2
]}

Jiang, Xin ^{[2
]}

Gao, Jin ^{[1
]}

Bai, Liang ^{[1
]}

Liu, Yang ^{[1
]}

Lifshitz, Yeshayahu ^{[1
,3
]}

Lee, Shuit-Tong ^{[1
]}

Kang, Zhenhui ^{[1
]}

机构：

[1] Soochow Univ, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Inst Funct Nano & Soft Mat FUNSOM, 199 Renai Rd, Suzhou 215123, Jiangsu, Peoples R China

[2] Univ Siegen, Inst Mat Engn, D-57076 Siegen, Germany

[3] Technion Israel Inst Technol, Dept Mat Sci & Engn, IL-3200003 Haifa, Israel

来源：

NATURE COMMUNICATIONS | 2017年 / 8卷

基金：

中国国家自然科学基金;

关键词：

HIGHLY EFFICIENT; CARBON; CATALYST; NANOPARTICLES; CONVERSION; DOTS; CELL; H2O;

D O I：

10.1038/s41467-017-01893-7

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Syngas, a CO and H-2 mixture mostly generated from non-renewable fossil fuels, is an essential feedstock for production of liquid fuels. Electrochemical reduction of CO2 and H+/H2O is an alternative renewable route to produce syngas. Here we introduce the concept of coupling a hydrogen evolution reaction (HER) catalyst with a CDots/C3N4 composite (a CO2 reduction catalyst) to achieve a cheap, stable, selective and efficient route for tunable syngas production. Co3O4, MoS2, Au and Pt serve as the HER component. The Co3O4-CDots-C3N4 electrocatalyst is found to be the most efficient among the combinations studied. The H-2/CO ratio of the produced syngas is tunable from 0.07:1 to 4:1 by controlling the potential. This catalyst is highly stable for syngas generation (over 100 h) with no other products besides CO and H-2. Insight into the mechanisms balancing between CO2 reduction and H-2 evolution when applying the HER-CDots-C3N4 catalyst concept is provided.

引用

页数：9

共 38 条

[1] Rising Again: Opportunities and Challenges for Platinum-Free Electrocatalysts [J].

Abbas, Muhammad A. ;

Bang, Jin Ho .

CHEMISTRY OF MATERIALS, 2015, 27 (21) :7218-7235

[2] Atomic Hydrogen Adsorbate Structures on Graphene [J].

Balog, Richard ;

Jorgensen, Bjarke ;

Wells, Justin ;

Laegsgaard, Erik ;

Hofmann, Philip ;

Besenbacher, Flemming ;

Hornekaer, Liv .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2009, 131 (25) :8744-+

[3] Palladium Nanoparticle-Graphitic Carbon Nitride Porous Synergistic Catalyst for Hydrogen Evolution/Oxidation Reactions over a Broad Range of pH and Correlation of Its Catalytic Activity with Measured Hydrogen Binding Energy [J].

Bhowmik, Tanmay ;

Kundu, Manas Kumar ;

Barman, Sudip .

ACS CATALYSIS, 2016, 6 (03) :1929-1941

[4] De Novo Design of Nanostructured Iron-Cobalt Fischer-Tropsch Catalysts [J].

Calderone, V. Roberto ;

Shiju, N. Raveendran ;

Curulla-Ferre, Daniel ;

Chambrey, Stephane ;

Khodakov, Andrei ;

Rose, Amadeus ;

Thiessen, Johannes ;

Jess, Andreas ;

Rothenberg, Gadi .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2013, 52 (16) :4397-4401

[5] Highly selective hydrogenation of furfural to furfuryl alcohol over Pt nanoparticles supported on g-C3N4 nanosheets catalysts in water [J].

Chen, Xiufang ;

Zhang, Ligang ;

Zhang, Bo ;

Guo, Xingcui ;

Mu, Xindong .

SCIENTIFIC REPORTS, 2016, 6

[6] Tunable Syngas Production from CO2 and H2O in an Aqueous Photoelectrochemical Cell [J].

Chu, Sheng ;

Fan, Shizhao ;

Wang, Yongjie ;

Rossouw, David ;

Wang, Yichen ;

Botton, Gianluigi A. ;

Mi, Zetian .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2016, 55 (46) :14260-14264

[7] Fischer-Tropsch fuels refinery design [J].

de Klerk, Arno .

ENERGY & ENVIRONMENTAL SCIENCE, 2011, 4 (04) :1177-1205

[8] Design of an electrochemical cell making syngas (CO+H2) from CO2 and H2O reduction at room temperature [J].

Delacourt, Charles ;

Ridgway, Paul L. ;

Kerr, John B. ;

Newman, John .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2008, 155 (01) :B42-B49

[9] Operation of a Pressurized System for Continuous Reduction of CO2 [J].

Dufek, Eric J. ;

Lister, Tedd E. ;

Stone, Simon G. ;

McIlwain, Michael E. .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2012, 159 (09) :F514-F517

[10] Bench-scale electrochemical system for generation of CO and syn-gas [J].

Dufek, Eric J. ;

Lister, Tedd E. ;

McIlwain, Michael E. .

JOURNAL OF APPLIED ELECTROCHEMISTRY, 2011, 41 (06) :623-631

← 1 2 3 4 →