出版日期：2008-05-01 00:00:00

著者：Lin, Cheng-lan; Carlos M. Sánchez-Sánchez; Allen J. Bard

單位：淡江大學化學工程與材料工程學系

出版者：Pennington, N.J. : Electrochemical Society

著錄名稱、卷期、頁數：Electrochem. Solid-State Lett. 11(8), pp.B136-B139

摘要：Bimetallic Pd–Co and pure Pt electrocatalysts were evaluated for tolerance to methanol in the oxygen reduction reaction (ORR) in 0.5 M H2SO4 using the tip generation–substrate collection mode of scanning electrochemical microscopy. The Pd–Co electrocatalyst, Pd80Co20 (80% Pd, 20% Co), showed the highest ORR activity among the different Pd–Co compositions, both in the absence and presence of MeOH. The ORR collection efficiency of the electrocatalysts in electrolytes containing various MeOH concentrations were measured and compared, with the Pd80Co20 electrocatalyst showing better tolerance toward MeOH poisoning during ORR than Pt electrocatalysts, especially at high MeOH concentrations.

關鍵字：Catalysts; Cobalt alloys; Electrochemistry; Electrolytes; Prganic compounds; Palladium alloys; Scanning electron microscopy

語言：en

ISSN：1099-0062

期刊性質：國外

收錄於：SCI EI

國別：USA

出版型式：紙本