电化学方法把铂丝转化到碳布上形成铂二十面体和纳米立方体并用于电催化产氢

Translated title of the contribution: A simple electrochemical method for conversion of Pt wires to Pt concave icosahedra and nanocubes on carbon paper for electrocatalytic hydrogen evolution

Zhimin Luo, Chaoliang Tan, Zhuangchai Lai, Xiao Zhang, Junze Chen, Ye Chen, Bo Chen, Yue Gong, Zhicheng Zhang, Xuejun Wu, Bing Li, Yun Zong, Lin Gu, Hua Zhang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

15 Citations (Scopus)

Abstract

In the controlled synthesis of noble metal nanostructures using wet-chemical methods, normally, metal salts/complexes are used as precursors, and surfactants/ ligands are used to tune/stabilize the morphology of nanostructures. Here, we develop a facile electrochemical method to directly convert Pt wires to Pt concave icosahedra and nanocubes on carbon paper through the linear sweep voltammetry in a classic three-electrode electrochemical cell. The Pt wire, carbon paper and Ag/AgCl (3 mol L−1 KCl) are used as the counter, working and reference electrodes, respectively. Impressively, the formed Pt nanostructures exhibit better electrocatalytic activity towards the hydrogen evolution compared to the commercial Pt/C catalyst. This work provides a simple and effective way for direct conversion of Pt wires into well-defined Pt nanocrystals with clean surface. We believe it can also be used for preparation of other metal nanocrystals, such as Au and Pd, from their bulk materials, which could exhibit various promising applications.

Translated title of the contributionA simple electrochemical method for conversion of Pt wires to Pt concave icosahedra and nanocubes on carbon paper for electrocatalytic hydrogen evolution
Original languageChinese (Simplified)
Pages (from-to)115-121
Number of pages7
JournalScience China Materials
Volume62
Issue number1
DOIs
Publication statusPublished - 1 Jan 2019
Externally publishedYes

Keywords

  • concave nanostructures
  • electrocatalysis
  • electrochemical conversion
  • hydrogen evolution
  • noble metals

ASJC Scopus subject areas

  • General Materials Science

Fingerprint

Dive into the research topics of 'A simple electrochemical method for conversion of Pt wires to Pt concave icosahedra and nanocubes on carbon paper for electrocatalytic hydrogen evolution'. Together they form a unique fingerprint.

Cite this