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Effects of Cerium Oxides on the Catalytic Performance of Pd/CNT for Methanol Oxidation

  • Weimin ChenEmail author
  • Yu Zhang
  • Zhenyu Zhu
Article
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Abstract

The carbon nanotubes supported palladium(Pd/CNT) nanocatalysts were modified by cerium oxides/hydroxides and their catalytic performances for methanol oxidation were evaluated. Electrochemical measurements indicate that the introduction of cerium remarkably improves the catalytic activity of Pd/CNT catalysts towards methanol oxidation. X-Ray photoelectron spectra results reveal an interaction between palladium and cerium oxides. It is also observed that cerium-modified catalysts have excellent poison resistances, which is attributed to the poison-removal ability of cerium oxides/hydroxides. The highly oxidized cerium oxides/hydroxides have a strong ability to inhibit the accumulation of carbonaceous intermediates on the active sites of Pd catalysts.

Keywords

Electrocatalyst Methanol oxidation Palladium Cerium Modification 

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Copyright information

© Jilin University, The Editorial Department of Chemical Research in Chinese Universities and Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.School of Environmental and Chemical EngineeringShenyang Ligong UniversityShenyangP. R. China
  2. 2.R & D Center of Shandong Shinlong GroupShouguangP. R. China

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