Gold nanoparticles on electroless-deposition-derived MnOx/C: Synthesis, characterization, and catalytic CO oxidation

Zhen Ma; Chengdu Liang; Steven H. Overbury; Sheng Dai

doi:10.1016/j.jcat.2007.08.013

Gold nanoparticles on electroless-deposition-derived MnO_x/C: Synthesis, characterization, and catalytic CO oxidation

Zhen Ma, Chengdu Liang, Steven H. Overbury, Sheng Dai

Chemical Sciences Division

Research output: Contribution to journal › Article › peer-review

45 Scopus citations

Abstract

Carbon materials were modified with MnO_x via a novel self-limiting electroless deposition using KMnO₄ as the precursor. Gold nanoparticles were loaded onto MnO_x/C via deposition-precipitation. The resulting Au/MnO_x/C showed higher catalytic activity in CO oxidation than Au/C, and the conversion was stable on stream. The performance of Au/MnO_x/C was compared with that of Au/C, MnO_x/C, MnO_x/Au/C, Au/MnO_x, and Au/MnO_x/TiO₂, and relevant characterization, applying XRD, BET, ICP-OES, SEM, TEM, and EDX, was conducted.

Original language	English
Pages (from-to)	119-126
Number of pages	8
Journal	Journal of Catalysis
Volume	252
Issue number	1
DOIs	https://doi.org/10.1016/j.jcat.2007.08.013
State	Published - Nov 15 2007

Funding

This work was supported by the U.S. Department of Energy's BES Program (DE-AC05-00OR22725). Z.M. thanks the ORNL-ORAU Research Associates Program. The 1 wt% Au/TiO 2 and 0.8 wt% Au/Al 2 O 3 were donated by Dr. Jason MacPherson of AuTEK. The helpful suggestions of anonymous reviewers are greatly appreciated.

Keywords

CO oxidation
Carbon
Electroless deposition
Gold catalysis
Manganese oxide
Nanoparticles
Promoter

Access to Document

10.1016/j.jcat.2007.08.013

Cite this

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title = "Gold nanoparticles on electroless-deposition-derived MnOx/C: Synthesis, characterization, and catalytic CO oxidation",

abstract = "Carbon materials were modified with MnOx via a novel self-limiting electroless deposition using KMnO4 as the precursor. Gold nanoparticles were loaded onto MnOx/C via deposition-precipitation. The resulting Au/MnOx/C showed higher catalytic activity in CO oxidation than Au/C, and the conversion was stable on stream. The performance of Au/MnOx/C was compared with that of Au/C, MnOx/C, MnOx/Au/C, Au/MnOx, and Au/MnOx/TiO2, and relevant characterization, applying XRD, BET, ICP-OES, SEM, TEM, and EDX, was conducted.",

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AU - Dai, Sheng

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AB - Carbon materials were modified with MnOx via a novel self-limiting electroless deposition using KMnO4 as the precursor. Gold nanoparticles were loaded onto MnOx/C via deposition-precipitation. The resulting Au/MnOx/C showed higher catalytic activity in CO oxidation than Au/C, and the conversion was stable on stream. The performance of Au/MnOx/C was compared with that of Au/C, MnOx/C, MnOx/Au/C, Au/MnOx, and Au/MnOx/TiO2, and relevant characterization, applying XRD, BET, ICP-OES, SEM, TEM, and EDX, was conducted.

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