Pt9 Ni Wavelike Nanowires with High Activity for Oxygen Reduction Reactions

Pengfei Lv; Benjin Jin; Chao Mei; Huang Zhou; Tongwei Yuan; Zhijun Li; Hui He; Xiaoshuang Shen; Xun Hong

doi:10.1002/chem.201803748

Pt₉ Ni Wavelike Nanowires with High Activity for Oxygen Reduction Reactions

Chemistry. 2018 Oct 1;24(55):14636-14638. doi: 10.1002/chem.201803748. Epub 2018 Sep 6.

Authors

Pengfei Lv¹, Benjin Jin², Chao Mei¹, Huang Zhou², Tongwei Yuan², Zhijun Li², Hui He¹, Xiaoshuang Shen¹, Xun Hong²

Affiliations

¹ School of Physical Science and Technology, Yangzhou University, Yangzhou, 225002, P. R. China.
² Center of Advanced Nanocatalysis, University of Science and Technology of China, Hefei, Anhui, 230026, P. R. China.

PMID: 30109899
DOI: 10.1002/chem.201803748

Abstract

Platinum (Pt)-based nanostructures are the most efficient catalysts for the oxygen reduction reaction (ORR) in acid media. Here, Pt₉ Ni wavelike nanowires (W-NWs) have been synthesized by etching Pt₃ Ni@PtNi₂ core-shell nanowires with 2,5-dihydroxyterephthalic acid for 24 hours. Compared to the commercial Pt/C catalyst, the free-standing Pt₉ Ni W-NWs show improvements of up to 9.3 times for mass activity and 12.6 times for specific activity, respectively.

Keywords: alloys; dealloying; nanowires; noble metals; oxygen reduction reaction.

Abstract

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