Anodic oxidation of impure H{sub 2} on Teflon-bonded Pt-Ru/WO{sub 3}/C electrodes

Journal Article · Sun Oct 01 04:00:00 EDT 1995 · Journal of the Electrochemical Society

DOI:https://doi.org/10.1149/1.2050038· OSTI ID:131752

Chen, K Y; Shen, P K; Tseung, A C.C. ^[1]

---

1. Univ. of Essex, Colchester (United Kingdom). Dept. of Chemistry and Biological Chemistry

There is a worldwide interest in the development and commercialization of reformer-solid polymer fuel cell systems for traction and on site cogeneration applications. Such fuel cell systems operate below 100 C and can use hydrocarbon fuels such as methanol or methane to produce impure H{sub 2} which may contain up to 2 volume percent (v/o) of CO. A series of carbon supported electrocatalysts, Pt/C, Pt/WO{sub 3}/C, Pt-Ru/C, and Pt-Ru/WO{sub 3}/C, were prepared by freeze drying and tested as Teflon-bonded electrodes in 0.5 M H{sub 2}SO{sub 4} in a stream of impure hydrogen containing 100 ppm of CO at 80 C. The first three catalysts were gradually poisoned and the performance was less than 100 mA/cm{sup 2} at 200 mV vs. SHE. However, there was no change in the performance of the Teflon-bonded Pt-Ru/WO{sub 3}/C electrode at 220 mA/cm{sup 2} over a test period of 6 h.

• Sponsoring Organization: USDOE
• OSTI ID: 131752
• Journal Information: Journal of the Electrochemical Society, Journal Name: Journal of the Electrochemical Society Journal Issue: 10 Vol. 142; ISSN 0013-4651; ISSN JESOAN
• Country of Publication: United States
• Language: English

Related Subjects

30 DIRECT ENERGY CONVERSION
ACTIVATED CARBON
ALCOHOL FUEL CELLS
CARBON MONOXIDE
CHEMICAL PREPARATION
COMPARATIVE EVALUATIONS
ELECTROCATALYSTS
HYDROGEN
HYDROGEN PRODUCTION
IMPURITIES
NATURAL GAS FUEL CELLS
OXIDATION
PERFORMANCE
PLATINUM
POISONING
REFORMER PROCESSES
RUTHENIUM
SOLID ELECTROLYTE FUEL CELLS
TUNGSTEN OXIDES