Catalytic CO Oxidation over Pt nanoparticles prepared from the Polyol Reduction Method supported on Yttria-Stabilized Zirconia

被引：14

作者：

Isaifan, Rima J. ^{[1
]}

Dole, Holly A. E. ^{[1
]}

Obeid, Emil ^{[2
]}

Lizarraga, Leonardo ^{[2
]}

Baranova, Elena A. ^{[1
]}

Vernoux, Philippe ^{[2
]}

机构：

[1] Univ Ottawa, Dept Chem & Biol Engn, 161 Louis Pasteur St, Ottawa, ON K1N 6N5, Canada

[2] Univ Lyon 1, CNRS, UMR 5256, IRCELYON,Inst Rech Catalyse & Environm Lyon, F-69626 Villeurbanne, France

来源：

ELECTROCATALYSIS 5 | 2011年 / 35卷 / 28期

基金：

加拿大自然科学与工程研究理事会;

关键词：

ELECTROCHEMICAL PROMOTION; NANO-CATALYSTS; SIZE; ELECTROOXIDATION; PT/YSZ;

D O I：

10.1149/1.3641818

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Pt nanoparticles were synthesized using a polyol process with ethylene glycol as a reducing agent. Nanoparticles of three average sizes were synthesized (3.8, 2.8 and 1.7 nm) and were deposited on Yttria-Stabilized Zirconia (YSZ), carbon black and gamma-Al2O3 resulting in 1 wt. % of Pt on each support. In addition, the conventional wet impregnation method was used to disperse Pt on YSZ. Pt nanoparticles were characterized using transmission electron microscopy and X-ray diffraction. The catalytic activity of all these catalysts was investigated for carbon monoxide oxidationin the temperature range of 25-250 degrees C. It has been found that Pt/YSZ catalysts prepared by the polyol process presented the highest catalytic performances is spite of the low specific surface area compared to carbon and gamma-Al2O3 supports. These performances can be explained based on metal/support interactions effect generated between Pt and YSZ or self-induced electrochemical promotion.

引用

页码：43 / 57

页数：15

共 19 条

[1] Carbon supports for low-temperature fuel cell catalysts [J].

Antolini, Ermete .

APPLIED CATALYSIS B-ENVIRONMENTAL, 2009, 88 (1-2) :1-24

[2]

Ayache J., 2010, SAMPLE PREPARATION H

[3] Formic acid electro-oxidation on carbon supported PdxPt1-x (0 ≥ x ≥ 1) nanoparticles synthesized via modified polyol method [J].

Baranova, Elena A. ;

Miles, Neil ;

Mercier, Patrick H. J. ;

Le Page, Yvon ;

Patarachao, Bussaraporn .

ELECTROCHIMICA ACTA, 2010, 55 (27) :8182-8188

[4] Single-step polyol synthesis of alloy Pt7Sn3 versus bi-phase Pt/SnOx nano-catalysts of controlled size for ethanol electro-oxidation [J].

Baranova, Elena A. ;

Amir, Tariq ;

Mercier, Patrick H. J. ;

Patarachao, Bussaraporn ;

Wang, Dashan ;

Le Page, Yvon .

JOURNAL OF APPLIED ELECTROCHEMISTRY, 2010, 40 (10) :1767-1777

[5] Size and composition for 1-5 nm O PtRu alloy nano-particles from Cu Kα X-ray patterns [J].

Baranova, Elena A. ;

Le Page, Yvon ;

Ilin, Dimitri ;

Bock, Christina ;

MacDougall, Barry ;

Mercier, Patrick H. J. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2009, 471 (1-2) :387-394

[6] Size-selected synthesis of PtRu nano-catalysts: Reaction and size control mechanism [J].

Bock, C ;

Paquet, C ;

Couillard, M ;

Botton, GA ;

MacDougall, BR .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2004, 126 (25) :8028-8037

[7] A MOLECULAR-BEAM STUDY OF THE CATALYTIC-OXIDATION OF CO ON A PT(111) SURFACE [J].

CAMPBELL, CT ;

ERTL, G ;

KUIPERS, H ;

SEGNER, J .

JOURNAL OF CHEMICAL PHYSICS, 1980, 73 (11) :5862-5873

[8]

Djega-Mariadassou G., 1984, Kinetics of Heterogeneous Catalytic Reactions, P13

[9] Dispersion measurement of platinum supported on Yttria-Stabilised Zirconia by pulse H2 chemisorption [J].

Fortunato, M. Alves ;

Aubert, D. ;

Capdeillayre, C. ;

Daniel, C. ;

Hadjar, A. ;

Princivalle, A. ;

Guizard, C. ;

Vernoux, P. .

APPLIED CATALYSIS A-GENERAL, 2011, 403 (1-2) :18-24

[10] The role of carbon deposition from CO dissociation on platinum crystal surfaces during catalytic CO oxidation: Effects on turnover rate, ignition temperature, and vibrational spectra [J].

McCrea, KR ;

Parker, JS ;

Somorjai, GA .

JOURNAL OF PHYSICAL CHEMISTRY B, 2002, 106 (42) :10854-10863

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