Au-modified PtCu nanodendrites as a highly stable and active electrocatalyst

Yuelin Gu; Weiyi Guo; Jingqi Bao; Yunxia Li; Linfang Lu

doi:10.1039/d3cc00050h

Au-modified PtCu nanodendrites as a highly stable and active electrocatalyst

Chem Commun (Camb). 2023 Mar 21;59(24):3582-3585. doi: 10.1039/d3cc00050h.

Authors

Yuelin Gu¹, Weiyi Guo¹, Jingqi Bao¹, Yunxia Li¹, Linfang Lu¹

Affiliation

¹ College of Material, Chemistry and Chemical Engineering, Key Laboratory of Organosilicon Chemistry and Material Technology, Ministry of Education, Hangzhou Normal University, Hangzhou, 311121, Zhejiang, China. linfang.lu@hznu.edu.cn.

PMID: 36883349
DOI: 10.1039/d3cc00050h

Abstract

Direct galvanic replacement of surface Cu with Au³⁺ in PtCu₃ nanodendrites is applied to synthesize an Au-modified PtCu₃ nanodendrite catalyst (PtCu₃-Au), which shows both superior stability and excellent activity for the methanol oxidation reaction (MOR) and oxygen reduction reaction (ORR). The PtCu₃-Au catalyst only lost 7% of its MOR activity and its ORR half-wave potential decreased 8 mV after 10 000 potential cycles.