Atomic-layered Au clusters on α-MoC as catalysts for the low-temperature water-gas shift reaction

被引：663

作者：

Yao, Siyu ^{[1
,2
]}

Zhang, Xiao ^{[3
]}

Zhou, Wu ^{[4
,5
]}

Gao, Rui ^{[6
,7
]}

Xu, Wenqian ^{[8
]}

Ye, Yifan ^{[9
]}

Lin, Lili ^{[1
,2
]}

Wen, Xiaodong ^{[6
,7
]}

Liu, Ping ^{[8
]}

Chen, Bingbing ^{[3
]}

Crumlin, Ethan ^{[9
]}

Guo, Jinghua ^{[9
]}

Zuo, Zhijun ^{[10
]}

Li, Weizhen ^{[1
,2
]}

Xie, Jinglin ^{[1
,2
]}

Lu, Li ^{[11
]}

Kiely, Christopher J. ^{[11
]}

Gu, Lin ^{[12
]}

Shi, Chuan ^{[3
]}

Rodriguez, Jose A. ^{[8
]}

Ma, Ding ^{[1
,2
]}

机构：

[1] Peking Univ, Coll Chem & Mol Engn, Beijing 100871, Peoples R China

[2] Peking Univ, Coll Engn, Beijing 100871, Peoples R China

[3] Dalian Univ Technol, Coll Chem, State Key Lab Fine Chem, Dalian 116024, Peoples R China

[4] Chinese Acad Sci, Univ Chinese Acad Sci, Key Lab Vacuum Sci, Sch Phys Sci, Beijing 100049, Peoples R China

[5] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA

[6] Chinese Acad Sci, Inst Coal Chem, State Key Lab Coal Convers, POB 165, Taiyuan 030001, Shanxi, Peoples R China

[7] Synfuels China, Beijing 100195, Peoples R China

[8] Brookhaven Natl Lab, Chem Div, Bldg 555,POB 5000, Upton, NY 11973 USA

[9] Lawrence Berkeley Natl Lab, Adv Light Source, Berkeley, CA 94720 USA

[10] Taiyuan Univ Technol, Key Lab Coal Sci & Technol, Minist Educ & Shanxi Prov, Taiyuan 030024, Shanxi, Peoples R China

[11] Lehigh Univ, Dept Mat Sci & Engn, Bethlehem, PA 18015 USA

[12] Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China

来源：

SCIENCE | 2017年 / 357卷 / 6349期

基金：

美国国家科学基金会;

关键词：

NANOPARTICLES; CERIA; OXIDATION;

D O I：

10.1126/science.aah4321

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：

The water-gas shift (WGS) reaction (where carbon monoxide plus water yields dihydrogen and carbon dioxide) is an essential process for hydrogen generation and carbon monoxide removal in various energy-related chemical operations. This equilibrium-limited reaction is favored at a low working temperature. Potential application in fuel cells also requires a WGS catalyst to be highly active, stable, and energy-efficient and to match the working temperature of on-site hydrogen generation and consumption units. We synthesized layered gold (Au) clusters on a molybdenum carbide (alpha-MoC) substrate to create an interfacial catalyst system for the ultralow-temperature WGS reaction. Water was activated over alpha-MoC at 303 kelvin, whereas carbon monoxide adsorbed on adjacent Au sites was apt to react with surface hydroxyl groups formed from water splitting, leading to a high WGS activity at low temperatures.

引用

页码：389 / +

页数：5

共 24 条

[1] Low-temperature water-gas shift reaction over Au/alpha-Fe2O3 [J].

Andreeva, D ;

Idakiev, V ;

Tabakova, T ;

Andreev, A .

JOURNAL OF CATALYSIS, 1996, 158 (01) :354-355

[2] EXAFS as a tool to interrogate the size and shape of mono and bimetallic catalyst nanoparticles [J].

Beale, Andrew M. ;

Weckhuysen, Bert M. .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2010, 12 (21) :5562-5574

[3] Comparison of the activity of Au/CeO2 and Au/Fe2O3 catalysts for the CO oxidation and the water-gas shift reactions [J].

Deng, Weiling ;

Carpenter, Colin ;

Yi, Nan ;

Flytzani-Stephanopoulos, Maria .

TOPICS IN CATALYSIS, 2007, 44 (1-2) :199-208

[4] Active nonmetallic Au and Pt species on ceria-based water-gas shift catalysts [J].

Fu, Q ;

Saltsburg, H ;

Flytzani-Stephanopoulos, M .

SCIENCE, 2003, 301 (5635) :935-938

[5] GOLD CATALYSTS PREPARED BY COPRECIPITATION FOR LOW-TEMPERATURE OXIDATION OF HYDROGEN AND OF CARBON-MONOXIDE [J].

HARUTA, M ;

YAMADA, N ;

KOBAYASHI, T ;

IIJIMA, S .

JOURNAL OF CATALYSIS, 1989, 115 (02) :301-309

[6]

Hedley N., 1968, CHEMISTRY CYANADATIO

[7] HOMOGENEOUS CATALYSIS BY RUTHENIUM CARBONYL IN ALKALINE-SOLUTION - WATER GAS SHIFT REACTION [J].

LAINE, RM ;

RINKER, RG ;

FORD, PC .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1977, 99 (01) :252-253

[8] MOLYBDENUM CARBIDE CATALYSTS .1. SYNTHESIS OF UNSUPPORTED POWDERS [J].

LEE, JS ;

OYAMA, ST ;

BOUDART, M .

JOURNAL OF CATALYSIS, 1987, 106 (01) :125-133

[9] Low-temperature water-gas shift reaction over Cu- and Ni-loaded cerium oxide catalysts [J].

Li, Y ;

Fu, Q ;

Flytzani-Stephanopoulos, M .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2000, 27 (03) :179-191

[10] Remarkable Performance of Ir1/FeOx Single-Atom Catalyst in Water Gas Shift Reaction [J].

Lin, Jian ;

Wang, Aiqin ;

Qiao, Botao ;

Liu, Xiaoyan ;

Yang, Xiaofeng ;

Wang, Xiaodong ;

Liang, Jinxia ;

Li, Jun ;

Liu, Jingyue ;

Zhang, Tao .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2013, 135 (41) :15314-15317

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