Negligible start-stop-cycle degradation in a PEFC utilizing platinum-decorated tin oxide electrocatalyst layers with carbon fiber filler

K. Kanda, Z. Noda, Y. Nagamatsu, T. Higashi, S. Taniguchi, S. M. Lyth, A. Hayashi, K. Sasaki

Research output: Contribution to journalArticlepeer-review

19 Citations (Scopus)

Abstract

Niobium-doped SnO2 is selected as an alternative carbon-free support material to negate carbon corrosion in polymer electrolyte fuel cells (PEFCs) electrocatalysts. The durability is measured using a membrane electrode assembly (MEA) over 60,000 start-stop cycles at high potential, equating to the lifetime of fuel cell vehicles. Using the Nb-doped SnO2 support results in retention of 99% of the initial cell voltage. The current-voltage characteristics are improved by adding carbon nanofibers as fillers in the Nb-doped SnO2, indicating that electronic conduction in the electrocatalyst layer is critical in the application ofmetal oxide-supported electrocatalysts.

Original languageEnglish
Pages (from-to)F15-F18
JournalECS Electrochemistry Letters
Volume3
Issue number4
DOIs
Publication statusPublished - 2014

All Science Journal Classification (ASJC) codes

  • Fuel Technology
  • Electrochemistry
  • Materials Chemistry

Fingerprint Dive into the research topics of 'Negligible start-stop-cycle degradation in a PEFC utilizing platinum-decorated tin oxide electrocatalyst layers with carbon fiber filler'. Together they form a unique fingerprint.

Cite this