One-pot synthesis of Pt-Co alloy nanowire assemblies with tunable composition and enhanced electrocatalytic properties

Bao Yu Xia; Hao Bin Wu; Nan Li; Ya Yan; Xiong Wen David Lou; Xin Wang

doi:10.1002/anie.201411544

One-pot synthesis of Pt-Co alloy nanowire assemblies with tunable composition and enhanced electrocatalytic properties

Angew Chem Int Ed Engl. 2015 Mar 16;54(12):3797-801. doi: 10.1002/anie.201411544. Epub 2015 Jan 28.

Authors

Bao Yu Xia¹, Hao Bin Wu, Nan Li, Ya Yan, Xiong Wen David Lou, Xin Wang

Affiliation

¹ School of Chemical and Biomedical Engineering, Nanyang Technological University, 62 Nanyang Drive, Singapore 637459 (Singapore).

PMID: 25630856
DOI: 10.1002/anie.201411544

Abstract

Three-dimensional (3D) Pt-based alloy nanostructures composed of one-dimensional (1D) nanowires/nanorods have recently attracted significant interest as electrocatalysts. In this work, we report an effective solvothermal method for the direct preparation of 3D Pt-Co nanowire assemblies (NWAs) with tunable composition. The composition- and structure-dependent electrocatalytic performance is thoroughly investigated. Because of the bimetallic synergetic effect and unique structural advantage, the as-prepared 3D Pt3Co NWA outperforms commercial Pt/carbon and Pt black catalysts and even 3D Pt NWA. The electrochemical results demonstrate that the 3D Pt3Co NWA is indeed a promising electrocatalyst with enhanced catalytic activity and improved durability for practical electrocatalytic applications.

Keywords: alloys; electrocatalysis; nanostructures; platinum.