Nanostructured coral-like carbon as Pt support for fuel cells

Wei Fu Chen, Jing Ping Wang, Chun Han Hsu, Jing Yi Jhan, Hsisheng Teng, Ping Lin Kuo

Research output: Contribution to journalArticlepeer-review

22 Citations (Scopus)

Abstract

A coral-like carbon material (Coral-C) is synthesized by growing curled carbon nanotubes (CNTs) onto carbon black (Lamp Black) to incorporate the unique structures and properties of the two nanostructured carbons, CNTs and carbon spheres. This Coral-C, having a good electronic conductivity, is used as a supporting material for Pt nanoatalyst for application in fuel cell electrodes. The Pt nanoparticles, being synthesized by a ligand exchange method, are stabilized on Coral-C though an enhanced deposition proess with poly(oxyproplyene)diamines. The Coral-C supported Pt catalyst shows excellent electrohemical active area (102.5 m2 g-1 Pt), good catalytic activity toward methanol oxidation (1.5 times higher than E-TEK Pt/C), and good power output in single DMFC (1.3 times better than E-TEK Pt/C), which could be attributed to the unique nanostructure of the catalyst: high conductivity of the surface accessible support and highly distributed Pt nanoparticles. The successful advancement in this coral-like nanostructure design for fuel cell catalyst presents a significant achievement in both the scientific and engineering fields.

Original languageEnglish
Pages (from-to)6976-6982
Number of pages7
JournalJournal of Physical Chemistry C
Volume114
Issue number15
DOIs
Publication statusPublished - 2010 Apr 22

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Energy(all)
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films

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