Combined theoretical and experimental studies of CO oxidation on PdRu nanoalloys

被引：6
|
作者：
Zulkifli, Nor Diana Bt. [1 ]
Ishimoto, Takayoshi [2 ]
Sato, Katsutoshi [3 ,4 ]
Eboshi, Takaaki [4 ]
Nagaoka, Katsutoshi [4 ]
Koyama, Michihisa [1 ,2 ,5 ]
机构：
[1] Kyushu Univ, Grad Sch Engn, Dept Hydrogen Energy Syst, Nishi Ku, 744 Motooka, Fukuoka, Fukuoka 8190395, Japan
[2] Kyushu Univ, INAMORI Frontier Res Ctr, Nishi Ku, 744Motooka, Fukuoka, Fukuoka 8190395, Japan
[3] Kyoto Univ, Elements Strategy Initiat Catalysts & Batteries, Nishikyo Ku, 1-30 Goryo Ohara, Kyoto 6158245, Japan
[4] Oita Univ, Fac Sci & Technol, Dept Integrated Sci & Technol, 700 Dannoharu, Oita, Oita 8701192, Japan
[5] Natl Inst Mat Sci, Global Res Ctr Environm & Energy Based Nanomat Sc, 1-1 Namiki, Tsukuba, Ibaraki 3050044, Japan
来源：
APPLIED CATALYSIS A-GENERAL | 2018年 / 568卷
基金：
日本科学技术振兴机构;
关键词：
CO oxidation; PdRu nanoalloy; Langmuir-Hinshelwood; Kinetics; Reactions order; SOLUTION ALLOY NANOPARTICLES; TOTAL-ENERGY CALCULATIONS; AUGMENTED-WAVE METHOD; PT-GROUP METALS; CATALYTIC-CONVERTERS; MOLECULAR ADSORPTION; PALLADIUM CATALYSTS; OXYGEN REDUCTION; 3-WAY CATALYSTS; BASIS-SET;
D O I：
10.1016/j.apcata.2018.10.002
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：
The oxidation of carbon monoxide (CO) over PdRu solid solution nanoparticles was studied by the combined theoretical and experimental approaches. In this work, CO and O adsorptions on PdRu alloy surface models were theoretically investigated to understand the kinetics of CO oxidation reaction. It was found that CO adsorption on Pd atom in the PdRu alloy surfaces is weaker than on monometallic surfaces. From the experiment, reaction order of CO on the PdRu surface was observed to be smaller than that on Pd surface. While, the positive first order with respect to O-2 obtained for both Pd and PdRu alloy surfaces. Catalytic reaction mechanism is discussed on the basis of both theoretical and experimental observations.
引用
收藏
页码：176 / 182
页数：7
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