Direct synthesis of hydrogen peroxide from hydrogen and oxygen over single-crystal cubic palladium on silica catalysts
- Authors
- Kim, Seongmin; Lee, Dae-Won; Lee, Kwan-Young
- Issue Date
- 3월-2014
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- Nanocubes; Palladium; Nanocatalyst; Hydrogen peroxide; Direct synthesis
- Citation
- JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, v.383, pp.64 - 69
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL
- Volume
- 383
- Start Page
- 64
- End Page
- 69
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/99074
- DOI
- 10.1016/j.molcata.2013.11.021
- ISSN
- 1381-1169
- Abstract
- The activities of Pd metal catalysts for direct hydrogen peroxide synthesis are influenced by the morphological and crystallographic properties of the Pd species. We prepared {100}-facet-enclosed Pd nanocubes of uniform shape, size, and crystallinity using an aqueous colloidal method. The nanocube size was adjusted, without affecting the shape, by changing the composition of the halide-ion capping agent. The Pd nanocubes were impregnated on silica, and tested as a catalyst in direct hydrogen peroxide synthesis. The {100} Pd facet catalyzed hydrogen peroxide formation but promoted side reactions, decreasing hydrogen peroxide selectivity; the selectivity was improved by blocking active sites on the {100} facet with bromide ions. (C) 2013 Elsevier B.V. All rights reserved.
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Collections - College of Engineering > Department of Chemical and Biological Engineering > 1. Journal Articles
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