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Graphene Supported Pd Electrocatalysts for Formic Acid Oxidation

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Abstract

Highly loaded 80 wt.% Pd/graphene nanosheet (GNS) electrocatalysts were synthesized by colloidal method in order to alleviate the degradation rate of Pd catalysts in formic acid oxidation. Pd nanoparticles deposited on the GNS were well distributed on the surface more homogenously and average particle size of these metals is 4.6 ± 0.6 nm as compared to Pd/VC (5.0 ± 1 nm), which is verified by X-ray diffraction peak and high-resolution transmission electron microscope images. Electrochemical measurements conducted by cyclic voltammetry and chronoamperometry show that Pd/GNS catalysts exhibited significantly enhanced electrocatalytic activity and stability for formic acid oxidation compared to Pd/VC catalysts.

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Acknowledgment

This work was supported by the Korea Science and Engineering Foundation (KOSEF) grant by the Korea government (MEST; no. R11-2005-008-06002-0). S. Bong and Y.-R. Kim were supported by the Brain Korea 21 fellowship.

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Authors and Affiliations

  1. Department of Chemistry, Seoul National University, Seoul, 151-747, Republic of Korea

    Sungyool Bong, Yang-Rae Kim & Hasuck Kim

  2. Ertl center for Electrochemistry and Catalysis, School of Environmental Science and Engineering, Gwangju Institute of Science and Technology, Gwangju, 500-712, Republic of Korea

    Sunghyun Uhm & Jaeyoung Lee

Authors
  1. Sungyool Bong
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  2. Sunghyun Uhm
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  3. Yang-Rae Kim
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  4. Jaeyoung Lee
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  5. Hasuck Kim
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Corresponding authors

Correspondence to Jaeyoung Lee or Hasuck Kim.

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Bong, S., Uhm, S., Kim, YR. et al. Graphene Supported Pd Electrocatalysts for Formic Acid Oxidation. Electrocatal 1, 139–143 (2010). https://doi.org/10.1007/s12678-010-0021-2

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  • DOI: https://doi.org/10.1007/s12678-010-0021-2

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