Journal article
Low Pt-content ternary PdCuPt nanodendrites: an efficient electrocatalyst for oxygen reduction reaction
Nanoscale, Vol.9(3), pp.1279-1284
01/19/2017
Handle:
https://hdl.handle.net/2376/105693
PMID: 28054683
Abstract
Dendritic nanostructures are capturing increasing attention in electrocatalysis owing to their unique structural features and low density. Herein, we report for the first time, bromide ion mediated synthesis of low Pt-content PdCuPt ternary nanodendrites via galvanic replacement reaction between a Pt precursor and a PdCu template in aqueous solution. The experimental results show that the ternary PdCuPt nanodendrites present enhanced electrocatalytic performance for oxygen reduction reaction in acid solution compared with commercial Pt/C as well as some state-of-the-art catalysts. In detail, the mass activity of the PdCuPt catalyst with optimized composition is 1.73 A mg
at 0.85 V vs. RHE, which is 14 times higher than that of a commercial Pt/C catalyst. Moreover, the long-term stability test demonstrates its better durability in acid solution. After 5k cycles, there is still 70% electrochemical surface area maintained. This method provides an efficient method to synthesize trimetallic alloys with controllable composition and specific structure for oxygen reduction reaction.
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Details
- Title
- Low Pt-content ternary PdCuPt nanodendrites: an efficient electrocatalyst for oxygen reduction reaction
- Creators
- Shaofang Fu - The School of Mechanical and Materials Engineering, Washington State University, Pullman, WA 99164, USA. yuehe.lin@wsu.eduChengzhou Zhu - Washington State UniversityJunhua Song - The School of Mechanical and Materials Engineering, Washington State University, Pullman, WA 99164, USA. yuehe.lin@wsu.eduPeina Zhang - State Key Laboratory of Crystal Materials, Shandong University, Jinan, P. R. ChinaMark H Engelhard - Environmental Molecular Sciences Laboratory, Pacific Northwest National laboratory, Richland, WA 99352, USAHaibing Xia - State Key Laboratory of Crystal Materials, Shandong University, Jinan, P. R. ChinaDan Du - The School of Mechanical and Materials Engineering, Washington State University, Pullman, WA 99164, USA. yuehe.lin@wsu.eduYuehe Lin - The School of Mechanical and Materials Engineering, Washington State University, Pullman, WA 99164, USA. yuehe.lin@wsu.edu and Environmental Molecular Sciences Laboratory, Pacific Northwest National laboratory, Richland, WA 99352, USA
- Publication Details
- Nanoscale, Vol.9(3), pp.1279-1284
- Academic Unit
- School of Mechanical and Materials Engineering; Department of Chemistry
- Publisher
- England
- Identifiers
- 99900547100401842
- Language
- English
- Resource Type
- Journal article