1D alloy ultrafine Pt-Fe nanowires as efficient electrocatalysts for alcohol electrooxidation in alkaline media

Nanoscale
Pingping SongYukou Du

Abstract

Fuel cells have been gaining much interest due to their advantages of high energy conversion efficiency, easy handling, etc., whereas some drawbacks of anode catalysts regarding limited performances have seriously restricted their practical applications. Therefore, the development of anode nanocatalysts with higher activity and stability has become an urgent need. In view of this, we have developed a facile wet-chemical approach to synthesize 1D alloy ultrafine Pt-Fe NWs, and we have also revealed the formation mechanism of the ultrafine Pt-Fe NWs using time-dependent studies. More importantly, 1D ultrafine nanowires with anisotropy, superior flexibility, high surface area and excellent conductivity are promising candidates for the improvement of nanocatalytic activity and stability enhancement. Therefore, the electrocatalytic activities of ultrafine Pt3Fe NWs in the oxidation of ethylene glycol and glycerol are 3.9 and 2.5 times greater than that of commercial Pt/C, respectively. Moreover, they provide excellent long-term stability. Our efforts may potentially promote the commercialization of fuel cells to some extent.

References

Aug 10, 2010·Nanoscale·Soshan CheongRichard D Tilley
Sep 8, 2011·Journal of the American Chemical Society·Shaojun GuoShouheng Sun
Feb 20, 2013·Angewandte Chemie·Shaojun GuoShouheng Sun
Jun 23, 2015·ACS Applied Materials & Interfaces·Kezhu JiangXiaoqing Huang
Jun 30, 2016·Nature Communications·Lingzheng BuXiaoqing Huang
Sep 13, 2016·Journal of the American Chemical Society·Fangfang ChangChuan-Jian Zhong
Mar 10, 2017·Science Advances·Kezhu JiangXiaoqing Huang
Dec 29, 2017·Journal of the American Chemical Society·Liang HuangShaojun Dong

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Methods Mentioned

BETA
X-ray
transmission electron microscopy

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