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Novel palladium-gadolinium (Pd-Gd/C) bimetallic catalysts for electrooxidation of methanol in alkaline media

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Abstract

Pd/C and Pd-Gd/C catalysts were synthesized and their catalytic performance for methanol electrooxidation in alkaline solution was compared. The structure, morphology and nature of surface species of these catalysts were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), and X-ray photoelectron spectroscopy (XPS). The cyclic voltammetry (CV), linear sweep voltammetry (LSV), chronoamperometry (CA), and CO stripping results show that the 20%Pd-10%Gd/C catalyst has better electrocatalytic activity and durability, as well as higher resistance to CO poisoning than that of the 20%Pd/C catalyst. Furthermore, the insight for the promoting effect of Gd on the specific activity is discussed in this work.

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Funding

The authors received financial support from One Hundred Talent Program of Chinese Academy of Sciences, as well as by the 973 Program (Grant No. 2015CB251303) and the NSFC (51302264) of China.

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Authors and Affiliations

  1. National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China

    Shuhui Ma, Xuan Du, Zhijun Jia, Yi Wang & Tao Qi

Authors
  1. Shuhui Ma
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  2. Xuan Du
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  3. Zhijun Jia
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  4. Yi Wang
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  5. Tao Qi
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Correspondence to Yi Wang or Tao Qi.

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Ma, S., Du, X., Jia, Z. et al. Novel palladium-gadolinium (Pd-Gd/C) bimetallic catalysts for electrooxidation of methanol in alkaline media. Ionics 24, 2421–2426 (2018). https://doi.org/10.1007/s11581-017-2377-2

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  • DOI: https://doi.org/10.1007/s11581-017-2377-2

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