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Ag–M (M: Ni, Co, Cu, Fe) bimetal catalysts prepared by galvanic deposition method for CO oxidation

Paper ID Volume ID Publish Year Pages File Format Full-Text
53778 46984 2016 5 PDF Available
Title
Ag–M (M: Ni, Co, Cu, Fe) bimetal catalysts prepared by galvanic deposition method for CO oxidation
Abstract

•Ag–M/SiO2 (M: Fe, Co, Ni, Cu) catalysts prepared by galvanic deposition.•Ag was successfully introduced on Fe, Co, Ni, and Cu particles using the GD method.•Ag–Ni bimetal catalyst having core–shell like structure showed remarkable enhancement of the catalytic activity for CO oxidation.

Ag–M (M: Fe, Co, Ni, Cu) bimetal catalysts supported on SiO2 were prepared by galvanic deposition (GD) method. HAADF-STEM observation and EDX elemental mapping showed that Ag was successfully introduced on Fe, Co, Ni, and Cu particles using the GD method. Ag–Fe, Ag–Co, and Ag–Cu catalysts showed Janus structure that is Ag nanoparticles (NPs) on the 3d metals. On the other hand, Ag–Ni catalyst showed core–shell like structure composed of small Ag NPs (<10 nm) or thin layer on Ni particles. The catalytic activities of Ag–M bimetal catalysts were evaluated by CO oxidation reaction. All Ag–M bimetal catalysts showed higher catalytic activities than Fe, Co, Ni, Cu, and Ag mono-metal catalysts. In particular, Ag–Ni bimetal catalyst having core–shell like structure showed remarkable enhancement of the catalytic activity.

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Keywords
CO oxidation; Galvanic deposition; Ag catalyst; Bimetal catalyst
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Ag–M (M: Ni, Co, Cu, Fe) bimetal catalysts prepared by galvanic deposition method for CO oxidation
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Today - Volume 265, 1 May 2016, Pages 2–6
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
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Price after discount Only $4.95
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Full-text PDF Download
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