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ACS Appl Mater Interfaces. 2015 Aug 19;7(32):17725-30. doi: 10.1021/acsami.5b03826. Epub 2015 Aug 7.

Platinum Dendritic-Flowers Prepared by Tellurium Nanowires Exhibit High Electrocatalytic Activity for Glycerol Oxidation.

Author information

1
State Key Laboratory of Agricultural Microbiology, College of Science Huazhong Agricultural University, Wuhan 430070, P.R. China.

Abstract

Dentritic Pt-based nanomaterials with enriched edge and corner atoms have recently attracted considerable attention as electrocatalysts. Meanwhile, Pt(111) facets are generally considered more active for the glycerol oxidation reaction (GOR). Thus, it is significant to construct the rational design and synthesis of dentritic Pt whose surface is mostly enclosed by {111} facets. Reported herein is a unique Pt-branched structure enriched by a large amount of valency unsaturated atoms prepared by the aggravation of the galvanic replacement strategy. The synthesis is developed to generate highly crystallized Pt nanoflowers using Te nanowires as a template. Furthermore, the electrochemical results show that Pt nanoflower is an excellent catalyst with higher mass activity and better structure stability than commercial Pt/C (20% Pt) for glycerol electro-oxidation. Besides, the template-broken approach could provide a novel potential way to synthesize Pt-based or other noble metals/alloys for their advanced functional applications.

KEYWORDS:

dentritic-flowers; electro-oxidation; glycerol; platinum; template-broken

PMID:
26226502
DOI:
10.1021/acsami.5b03826

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