A Simple Method to Improve Electrocatalytic Activity of Pt for Formic Acid Oxidation

Abstract

Abstract: A platinum electrode was modified with polypyrrole in the ionic liquid 1-ethylimidazolium trifluoroacetate (PPy-HEImTfa/Pt) using cyclic voltammetry, and its electrocatalytic performance for the oxidation of formic acid was tested. Compared to the Pt electrode, the electrocatalytic activity of PPy-HEImTfa/Pt for the oxidation of formic acid was greatly improved. The complete oxidation of formic acid to CO₂ was followed by in situ FT-IR, which showed that with PPy-HEImTfa, formic acid oxidation occurred by a direct pathway mechanism and CO poisoning was much decreased.

Key words: 1-ethylimidazolium trifluoroacetate, polypyrrole, platinum, formic acid, electrocatalytic oxidation

LI Meichao*;WANG Wuyang;MA Chun’an. A Simple Method to Improve Electrocatalytic Activity of Pt for Formic Acid Oxidation[J]. Chinese Journal of Catalysis, 2009, 30(11): 1073-1075.

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A Simple Method to Improve Electrocatalytic Activity of Pt for Formic Acid Oxidation

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