Enhanced electrochemical performances of nanoporous gold by surface modification of titanium dioxide nanoparticles

Akira Kudo, Takeshi Fujita, Xingyou Lang, Luyang Chen, Mingwei Chen

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

We reported novel nanoporous gold (NPG) with surface modified by TiO 2 nanoparticles. The as-fabricated sample showed larger effective area than bare NPG. Microstructure characterization demonstrated that the TiO2 nanoparticles effectively suppressed the coarsening of the nanoporous structure by the reaction with gold ligaments. The resultant porous nanocomposite with rough ligament surfaces was proofed to spontaneously possess enhanced catalytic performance towards methanol oxidation. This result would yield an effective and inexpensive method to improve NPG s catalytic activity.

Original languageEnglish
Pages (from-to)1566-1569
Number of pages4
JournalMaterials Transactions
Volume51
Issue number9
DOIs
Publication statusPublished - 2010 Sep

Keywords

  • Dealloying
  • Methanol oxidation
  • Nanoporous metal
  • Scanning electron microscope (sem)
  • Transmission electron microscope (tem)

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Fingerprint Dive into the research topics of 'Enhanced electrochemical performances of nanoporous gold by surface modification of titanium dioxide nanoparticles'. Together they form a unique fingerprint.

Cite this