Reductant composition influences the coordination of atomically dispersed Rh on anatase TiO2

被引：44

作者：

Asokan, Chithra ^{[1
]}

Ho Viet Thang ^{[2
,3
]}

Pacchioni, Gianfranco ^{[2
]}

Christopher, Phillip ^{[1
]}

机构：

[1] Univ Calif Santa Barbara, Dept Chem Engn, Santa Barbara, CA 93106 USA

[2] Univ Milano Bicocca, Dipartimento Sci Mat, Via Cozzi 55, I-20125 Milan, Italy

[3] Univ Da Nang, Univ Sci & Technol, 54 Nguyen Luong Bang, Danang 550000, Vietnam

来源：

CATALYSIS SCIENCE & TECHNOLOGY | 2020年 / 10卷 / 06期

关键词：

SURFACE HYDROXYL-GROUPS; STABLE SINGLE-ATOM; CARBON-MONOXIDE; CO; RHODIUM; CHEMISORPTION; AL2O3; OXIDE; ADSORPTION; REACTIVITY;

D O I：

10.1039/d0cy00146e

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：

Atomically dispersed noble metal catalysts have received recent interest, although the coordination of the metal to the support and how this is influenced by pre-treatment have not often been elucidated. We combine CO FTIR-TPD and DFT to distinguish how catalyst reduction via CO or H-2 influence the local metal coordination and molecular desorption processes.

引用

页码：1597 / 1601

页数：5

共 37 条

[31] CHEMISORPTION OF CO ON RH(111) [J].

THIEL, PA ;

WILLIAMS, ED ;

YATES, JT ;

WEINBERG, WH .

SURFACE SCIENCE, 1979, 84 (01) :54-64

[32] INFRARED SPECTROSCOPIC STUDIES OF CO ADSORPTION ON RHODIUM SUPPORTED BY SIO2, AL2O3, AND TIO2 [J].

TRAUTMANN, S ;

BAERNS, M .

JOURNAL OF CATALYSIS, 1994, 150 (02) :335-344

[33] Probing the interaction of Rh, Co and bimetallic Rh-Co nanoparticles with the CeO2 support: catalytic materials for alternative energy generation [J].

Varga, E. ;

Pusztai, P. ;

Ovari, L. ;

Oszko, A. ;

Erdohelyi, A. ;

Papp, C. ;

Steinrueck, H. -P. ;

Konya, Z. ;

Kiss, J. .

PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2015, 17 (40) :27154-27166

[34]

YANG AC, 1957, J PHYS CHEM-US, V61, P1504

[35] INFRARED-SPECTRA OF CHEMISORBED CO ON RH [J].

YATES, JT ;

DUNCAN, TM ;

WORLEY, SD ;

VAUGHAN, RW .

JOURNAL OF CHEMICAL PHYSICS, 1979, 70 (03) :1219-1224

[36] INFRARED SPECTROSCOPIC INVESTIGATION OF THE RHODIUM GEMDICARBONYL SURFACE SPECIES [J].

YATES, JT ;

KOLASINSKI, K .

JOURNAL OF CHEMICAL PHYSICS, 1983, 79 (02) :1026-1030

[37] New advances in the use of infrared absorption spectroscopy for the characterization of heterogeneous catalytic reactions [J].

Zaera, Francisco .

CHEMICAL SOCIETY REVIEWS, 2014, 43 (22) :7624-7663

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