Direct synthesis of hydrogen peroxide from hydrogen and oxygen over a Pd core-silica shell catalyst
- Authors
- Lee, HwaJung; Kim, Seongmin; Lee, Dae-Won; Lee, Kwan-Young
- Issue Date
- 10-6월-2011
- Publisher
- ELSEVIER
- Keywords
- Hydroen peroxide; Direct synthesis; Palladium; Colloid nanoparticle; Core-shell
- Citation
- CATALYSIS COMMUNICATIONS, v.12, no.11, pp.968 - 971
- Indexed
- SCIE
SCOPUS
- Journal Title
- CATALYSIS COMMUNICATIONS
- Volume
- 12
- Number
- 11
- Start Page
- 968
- End Page
- 971
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/112239
- DOI
- 10.1016/j.catcom.2011.03.001
- ISSN
- 1566-7367
- Abstract
- Pd core-silica shell particles (Pd@SiO2) were prepared by encapsulating Pd colloids with a silica shell through the Stober method. The palladium core particles were well dispersed (Dispersion = 43%) and had uniform size (4 nm) and shape inside the porous silica shell. Pd@SiO2 showed good catalytic activity (554 mmol H2O2/g Pd.h) for the direct synthesis of H2O2, which was better than those of impregnated Pd catalysts (Pd/SiO2 and Pd/Al2O3). It is expected that the stabilization of less coordinated Pd crystals in a highly dispersed state by core-shell formation is effective for the improvement of H2O2 production. (C) 2011 Elsevier B.V. All rights reserved.
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