Direct synthesis of hydrogen peroxide from hydrogen and oxygen over single-crystal cubic palladium on silica catalysts

Seongmin Kim; Dae Won Lee; Kwan Young Lee

doi:10.1016/j.molcata.2013.11.021

Direct synthesis of hydrogen peroxide from hydrogen and oxygen over single-crystal cubic palladium on silica catalysts

Seongmin Kim, Dae Won Lee, Kwan Young Lee

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

46 Citations (Scopus)

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 {1 0 0}-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 {1 0 0} Pd facet catalyzed hydrogen peroxide formation but promoted side reactions, decreasing hydrogen peroxide selectivity; the selectivity was improved by blocking active sites on the {1 0 0} facet with bromide ions.

Original language	English
Pages (from-to)	64-69
Number of pages	6
Journal	Journal of Molecular Catalysis A: Chemical
Volume	383-384
DOIs	https://doi.org/10.1016/j.molcata.2013.11.021
Publication status	Published - 2014 Mar

Bibliographical note

Funding Information:
This work was supported by the Human Resources Development program (No. 20114010203050) of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korea government Ministry of Trade, Industry and Energy. This work was supported by the National Research Foundation of Korea Grant funded by the Korean Government (Ministry of Science, ICT & Future Planning) (2013, University-Institute Cooperation Program). Dr. Dae-Won Lee was supported by Korea University Grant.

Copyright:
Copyright 2014 Elsevier B.V., All rights reserved.

Keywords

Direct synthesis
Hydrogen peroxide
Nanocatalyst
Nanocubes
Palladium

ASJC Scopus subject areas

Catalysis
Process Chemistry and Technology
Physical and Theoretical Chemistry

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10.1016/j.molcata.2013.11.021

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title = "Direct synthesis of hydrogen peroxide from hydrogen and oxygen over single-crystal cubic palladium on silica catalysts",

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 {1 0 0}-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 {1 0 0} Pd facet catalyzed hydrogen peroxide formation but promoted side reactions, decreasing hydrogen peroxide selectivity; the selectivity was improved by blocking active sites on the {1 0 0} facet with bromide ions.",

keywords = "Direct synthesis, Hydrogen peroxide, Nanocatalyst, Nanocubes, Palladium",

author = "Seongmin Kim and Lee, {Dae Won} and Lee, {Kwan Young}",

note = "Funding Information: This work was supported by the Human Resources Development program (No. 20114010203050) of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korea government Ministry of Trade, Industry and Energy. This work was supported by the National Research Foundation of Korea Grant funded by the Korean Government (Ministry of Science, ICT & Future Planning) (2013, University-Institute Cooperation Program). Dr. Dae-Won Lee was supported by Korea University Grant. Copyright: Copyright 2014 Elsevier B.V., All rights reserved.",

year = "2014",

month = mar,

doi = "10.1016/j.molcata.2013.11.021",

language = "English",

volume = "383-384",

pages = "64--69",

journal = "Journal of Molecular Catalysis A: Chemical",

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AU - Kim, Seongmin

AU - Lee, Dae Won

AU - Lee, Kwan Young

N1 - Funding Information: This work was supported by the Human Resources Development program (No. 20114010203050) of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Korea government Ministry of Trade, Industry and Energy. This work was supported by the National Research Foundation of Korea Grant funded by the Korean Government (Ministry of Science, ICT & Future Planning) (2013, University-Institute Cooperation Program). Dr. Dae-Won Lee was supported by Korea University Grant. Copyright: Copyright 2014 Elsevier B.V., All rights reserved.

PY - 2014/3

Y1 - 2014/3

N2 - 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 {1 0 0}-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 {1 0 0} Pd facet catalyzed hydrogen peroxide formation but promoted side reactions, decreasing hydrogen peroxide selectivity; the selectivity was improved by blocking active sites on the {1 0 0} facet with bromide ions.

AB - 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 {1 0 0}-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 {1 0 0} Pd facet catalyzed hydrogen peroxide formation but promoted side reactions, decreasing hydrogen peroxide selectivity; the selectivity was improved by blocking active sites on the {1 0 0} facet with bromide ions.

KW - Direct synthesis

KW - Hydrogen peroxide

KW - Nanocatalyst

KW - Nanocubes

KW - Palladium

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DO - 10.1016/j.molcata.2013.11.021

M3 - Article

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SN - 1381-1169

VL - 383-384

SP - 64

EP - 69

JO - Journal of Molecular Catalysis A: Chemical

JF - Journal of Molecular Catalysis A: Chemical

ER -

Direct synthesis of hydrogen peroxide from hydrogen and oxygen over single-crystal cubic palladium on silica catalysts

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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