Issue 13, 2011
From the journal:

Physical Chemistry Chemical Physics

On the origin of reactive Pd catalysts for an electrooxidation of formic acid

Hongrae Jeon,a   Sunghyun Uhm,b   Beomgyun Jeonga  and  Jaeyoung Lee*ab  

* Corresponding authors

a Electrochemical Reaction & Technology Laboratory (ERTL), School of Environmental Science and Engineering, Gwangju 500-712, South Korea
E-mail: jaeyoung@gist.ac.kr

b Ertl center for Electrochemistry and Catalysis, GIST, Gwangju 500-712, South Korea

Abstract

We investigated the origin of the reactive surface of Pd catalysts during the electrocatalytic oxidation of formic acid. XPS analysis was the primary tool adapted to characterize the surface changes in Pd catalysts arising from interactions with formic acid. Pd catalysts showed fast deactivation, though their activity could be simply recovered by applying a reduction potential at which hydrogen evolution reaction can occur. XPS analysis revealed that the surface of Pd catalysts is significantly affected by interaction with formic acid, thus confirming that the surface coverage of oxygen species plays an important role in formic acid electrooxidation on the Pd catalysts. At the same time, mass transfer of formic acid also has an effect on the deactivation of Pd catalysts.

Graphical abstract: On the origin of reactive Pd catalysts for an electrooxidation of formic acid

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Article information

DOI
https://doi.org/10.1039/C0CP02863K
Article type
Paper
Submitted
13 Dec 2010
Accepted
01 Feb 2011
First published
25 Feb 2011

Phys. Chem. Chem. Phys., 2011,13, 6192-6196

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On the origin of reactive Pd catalysts for an electrooxidation of formic acid

H. Jeon, S. Uhm, B. Jeong and J. Lee, Phys. Chem. Chem. Phys., 2011, 13, 6192 DOI: 10.1039/C0CP02863K

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