Pore Structure and Bifunctional Catalyst Activity of Overlayers Applied by Atomic Layer Deposition on Copper Nanoparticles

被引：53

作者：

Alba-Rubio, Ana C. ^{[1
]}

O'Neill, Brandon J. ^{[1
]}

Shi, Fengyuan ^{[2
]}

Akatay, Cem ^{[3
]}

Canlas, Christian ^{[4
]}

Li, Tao ^{[5
]}

Winans, Randall ^{[5
]}

Elam, Jeffrey W. ^{[4
]}

Stach, Eric A. ^{[6
]}

Voyles, Paul M. ^{[2
]}

Dumesic, James A. ^{[1
]}

机构：

[1] Univ Wisconsin, Dept Chem & Biol Engn, Madison, WI 53706 USA

[2] Univ Wisconsin, Mat Sci Program, Madison, WI 53706 USA

[3] Purdue Univ, Sch Mat Engn, W Lafayette, IN 47907 USA

[4] Argonne Natl Lab, Div Energy Syst, Argonne, IL 60439 USA

[5] Argonne Natl Lab, Xray Sci Div, Argonne, IL 60439 USA

[6] Brookhaven Natl Lab, Ctr Funct Mat, Upton, NY 11973 USA

来源：

ACS CATALYSIS | 2014年 / 4卷 / 05期

关键词：

Atomic Layer Deposition; Electron Microscopy; Catalyst Stability; Copper; Bifunctional Catalysis; METAL-CATALYSTS; STABILIZATION; DEACTIVATION;

D O I：

10.1021/cs500330p

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：

We present a model system, based on spherical nonporous supports, to facilitate the characterization of supported metal catalysts stabilized by atomic layer deposition (ALD) against sintering and leaching under liquid-phase conditions. Calcination at high temperatures (973 K) produces pores in the ALD overcoat, and we image these pores using scanning transmission electron microscopy and electron energy loss spectroscopy (STEM/EELS). We determine the size of these pores to be similar to 1 nm using small-angle X-ray scattering (SAXS). Finally, we demonstrate the use of ALD to synthesize novel bifunctional catalysts by the addition of an acidic oxide layer to the stabilizing overcoat.

引用

页码：1554 / 1557

页数：4

共 11 条

[1] Al2O3 and TiO2 Atomic Layer Deposition on Copper for Water Corrosion Resistance [J].

Abdulagatov, A. I. ;

Yan, Y. ;

Cooper, J. R. ;

Zhang, Y. ;

Gibbs, Z. M. ;

Cavanagh, A. S. ;

Yang, R. G. ;

Lee, Y. C. ;

George, S. M. .

ACS APPLIED MATERIALS & INTERFACES, 2011, 3 (12) :4593-4601

[2]

Bullock R. M., 2010, CATALYSIS PRECIOUS M, pI

[3] THE MEASUREMENT OF COPPER SURFACE-AREAS BY REACTIVE FRONTAL CHROMATOGRAPHY [J].

CHINCHEN, GC ;

HAY, CM ;

VANDERVELL, HD ;

WAUGH, KC .

JOURNAL OF CATALYSIS, 1987, 103 (01) :79-86

[4] Stabilization of Supported Metal Nanoparticles Using an Ultrathin Porous Shell [J].

Liang, Xinhua ;

Li, Jianhua ;

Yu, Miao ;

McMurray, Christopher N. ;

Falconer, John L. ;

Weimer, Alan W. .

ACS CATALYSIS, 2011, 1 (10) :1162-1165

[5] Coking- and Sintering-Resistant Palladium Catalysts Achieved Through Atomic Layer Deposition [J].

Lu, Junling ;

Fu, Baosong ;

Kung, Mayfair C. ;

Xiao, Guomin ;

Elam, Jeffrey W. ;

Kung, Harold H. ;

Stair, Peter C. .

SCIENCE, 2012, 335 (6073) :1205-1208

[6] Stabilization of Copper Catalysts for Liquid-Phase Reactions by Atomic Layer Deposition [J].

O'Neill, Brandon J. ;

Jackson, David H. K. ;

Crisci, Anthony J. ;

Farberow, Carrie A. ;

Shi, Fengyuan ;

Alba-Rubio, Ana C. ;

Lu, Junling ;

Dietrich, Paul J. ;

Gu, Xiangkui ;

Marshall, Christopher L. ;

Stair, Peter C. ;

Elam, Jeffrey W. ;

Miller, Jeffrey T. ;

Ribeiro, Fabio H. ;

Voyles, Paul M. ;

Greeley, Jeffrey ;

Mavrikakis, Manos ;

Scott, Susannah L. ;

Kuech, Thomas F. ;

Dumesic, James A. .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2013, 52 (51) :13808-13812

[7]

Ray N., 2013, THESIS NW U, P105

[8] Deactivation of copper metal catalysts for methanol decomposition, methanol steam reforming and methanol synthesis [J].

Twigg, MV ;

Spencer, MS .

TOPICS IN CATALYSIS, 2003, 22 (3-4) :191-203

[9] Deactivation of supported copper metal catalysts for hydrogenation reactions [J].

Twigg, MV ;

Spencer, MS .

APPLIED CATALYSIS A-GENERAL, 2001, 212 (1-2) :161-174

[10]

Zeitsch KJ, 2000, SUGAR SER, V13, P150

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