Synthesis and Characterization of CO- and H2S-Tolerant Electrocatalysts for PEM Fuel Cell. Semi-Annual Technical Report, April 1, 2004-September 30, 2004.

Ilias, S.

Technical Information Center Oak Ridge Tennessee

关键词: Fuel cells;    Electrocatalysts;    Anodes;    Carbon;    Catalysts;   

RP-ID  :  DE2005838714

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

The present state-of-art Proton Exchange Membrane Fuel Cell (PEMFC) technology is based on platinum (Pt) as a catalyst for both the fuel (anode) and air (cathode) electrodes. This catalyst is highly active but susceptible to poisoning by CO, which may be present in the H(sub 2)-fuel used or may be introduced during the fuel processing. Presence of trace amount of CO and H(sub 2)S in the H(sub 2)-fuel poisons the anode irreversibly and decreases the performance of the PEMFCs. In an effort to reduce the Pt-loading and improve the PEMFC performance, we propose to synthesize a number of Pt-based binary, ternary, and quaternary electrocatalysts using Ru, Mo, Ir, Ni, and Co as a substitute for Pt. By fine-tuning the metal loadings and compositions of candidate electrocatalysts, we plan to minimize the cost and optimize the catalyst activity and performance in PEMFC.