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Title: Preparation of PdCu Alloy Nanocatalysts for Nitrate Hydrogenation and Carbon Monoxide Oxidation

Abstract

Alloying Pd with Cu is important for catalytic reactions such as denitrification reaction and CO oxidation reaction, but understanding of the catalyst preparation and its correlation with the catalyst’s activity and selectivity remains elusive. Herein, we report the results of investigations of the preparation of PdCu alloy nanocatalysts using different methods and the catalytic properties of the catalysts in catalytic denitrification reaction and CO oxidation reaction. PdCu alloy nanocatalysts were prepared by conventional dry impregnation method and ligand-capping based wet chemical synthesis method, and subsequent thermochemical activation as well. The alloying characteristics depend on the bimetallic composition. PdCu/Al2O3 with a Pd/Cu ratio of 50:50 was shown to exhibit an optimized hydrogenation activity for the catalytic denitrification reaction. The catalytic activity of the PdCu catalysts was shown to be highly dependent on the support, as evidenced by the observation of an enhanced catalytic activity for CO oxidation reaction using TiO2 and CeO2 supports with high oxygen storage capacity. Lastly, we discussed the implications of the results to the refinement of the preparation of the alloy nanocatalysts.

Authors:
 [1];  [1];  [2];  [3];  [1];  [2];  [2]
  1. Xiamen Univ., Xiamen(China). College of Chemistry and Chemical Engineering
  2. State Univ. of New York at Binghamton, Binghamton, NY (United States). Dept. of Chemistry
  3. Japan Advanced Inst. of Science and Technology, Ishikawa (Japan)
Publication Date:
Research Org.:
Central Michigan Univ.
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
OSTI Identifier:
1326685
Grant/Contract Number:  
SC0006877; 21373171
Resource Type:
Accepted Manuscript
Journal Name:
Catalysts
Additional Journal Information:
Journal Volume: 6; Journal Issue: 7; Journal ID: ISSN 2073-4344
Publisher:
MDPI
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; palladium-copper alloy; nanocatalyst; nitrate hydrogenation; CO oxidation; bimetallic composition; support effect

Citation Formats

Cai, Fan, Yang, Lefu, Shan, Shiyao, Mott, Derrick, Chen, Bing H., Luo, Jin, and Zhong, Chuan-Jian. Preparation of PdCu Alloy Nanocatalysts for Nitrate Hydrogenation and Carbon Monoxide Oxidation. United States: N. p., 2016. Web. https://doi.org/10.3390/catal6070096.
Cai, Fan, Yang, Lefu, Shan, Shiyao, Mott, Derrick, Chen, Bing H., Luo, Jin, & Zhong, Chuan-Jian. Preparation of PdCu Alloy Nanocatalysts for Nitrate Hydrogenation and Carbon Monoxide Oxidation. United States. https://doi.org/10.3390/catal6070096
Cai, Fan, Yang, Lefu, Shan, Shiyao, Mott, Derrick, Chen, Bing H., Luo, Jin, and Zhong, Chuan-Jian. Thu . "Preparation of PdCu Alloy Nanocatalysts for Nitrate Hydrogenation and Carbon Monoxide Oxidation". United States. https://doi.org/10.3390/catal6070096. https://www.osti.gov/servlets/purl/1326685.
@article{osti_1326685,
title = {Preparation of PdCu Alloy Nanocatalysts for Nitrate Hydrogenation and Carbon Monoxide Oxidation},
author = {Cai, Fan and Yang, Lefu and Shan, Shiyao and Mott, Derrick and Chen, Bing H. and Luo, Jin and Zhong, Chuan-Jian},
abstractNote = {Alloying Pd with Cu is important for catalytic reactions such as denitrification reaction and CO oxidation reaction, but understanding of the catalyst preparation and its correlation with the catalyst’s activity and selectivity remains elusive. Herein, we report the results of investigations of the preparation of PdCu alloy nanocatalysts using different methods and the catalytic properties of the catalysts in catalytic denitrification reaction and CO oxidation reaction. PdCu alloy nanocatalysts were prepared by conventional dry impregnation method and ligand-capping based wet chemical synthesis method, and subsequent thermochemical activation as well. The alloying characteristics depend on the bimetallic composition. PdCu/Al2O3 with a Pd/Cu ratio of 50:50 was shown to exhibit an optimized hydrogenation activity for the catalytic denitrification reaction. The catalytic activity of the PdCu catalysts was shown to be highly dependent on the support, as evidenced by the observation of an enhanced catalytic activity for CO oxidation reaction using TiO2 and CeO2 supports with high oxygen storage capacity. Lastly, we discussed the implications of the results to the refinement of the preparation of the alloy nanocatalysts.},
doi = {10.3390/catal6070096},
journal = {Catalysts},
number = 7,
volume = 6,
place = {United States},
year = {2016},
month = {6}
}

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