Ultrafine PtRu Dilute Alloy Nanodendrites for Enhanced Electrocatalytic Methanol Oxidation

Shuping Zhang; Hongpan Rong; Tianyi Yang; Bing Bai; Jiatao Zhang

doi:10.1002/chem.201904229

Ultrafine PtRu Dilute Alloy Nanodendrites for Enhanced Electrocatalytic Methanol Oxidation

Chemistry. 2020 Mar 26;26(18):4025-4031. doi: 10.1002/chem.201904229. Epub 2019 Oct 30.

Authors

Shuping Zhang¹, Hongpan Rong¹, Tianyi Yang¹, Bing Bai¹, Jiatao Zhang¹

Affiliation

¹ Beijing Key Laboratory of Construction-Tailorable Advanced Functional, Materials and Green Applications, School of Materials Science & Engineering, Beijing Institute of Technology, Beijing, 100081, P. R. China.

PMID: 31596524
DOI: 10.1002/chem.201904229

Abstract

Dilute alloy nanostructures have been demonstrated to possess distinct catalytic properties. Noble-metal-induced reduction is one effective synthesis strategy to construct dilute alloys and modify the catalytic performance of the host metal. Herein, we report the synthesis of ultrafine PtRu dilute alloy nanodendrites (PtRu NDs, molar ratio Ru/Pt is 1:199) by the reduction of Ru^III ions induced by Pt metal. For the methanol oxidation reaction, PtRu NDs showed the highest forward peak current density (2.66 mA cm^-2 , 1.14 A/mg_Pt ) and the best stability compared to those of pure-Pt nanodendrites (pure-Pt NDs), commercial PtRu/C and commercial Pt/C catalysts.

Keywords: PtRu dilute alloy; induced reduction; methanol oxidation reaction; nanotechnology.

Abstract

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