Volume 6 Issue 2
Apr.  2021
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Article Navigation >  Green Energy&Environment  > 2021  >  6(2): 229-235
Hong Zhang, Ying Luo, Dong Chen, Hui Liu, Penglei Cui, Jun Yang. Ionic liquid-derived core–shell gold@palladium nanoparticles with tiny sizes for highly efficient electrooxidation of ethanol. Green Energy&Environment, 2021, 6(2): 229-235. doi: 10.1016/j.gee.2020.03.007
Citation: Hong Zhang, Ying Luo, Dong Chen, Hui Liu, Penglei Cui, Jun Yang. Ionic liquid-derived core–shell gold@palladium nanoparticles with tiny sizes for highly efficient electrooxidation of ethanol. Green Energy&Environment, 2021, 6(2): 229-235. doi: 10.1016/j.gee.2020.03.007
shu

Ionic liquid-derived core–shell gold@palladium nanoparticles with tiny sizes for highly efficient electrooxidation of ethanol

doi: 10.1016/j.gee.2020.03.007
  • a.

    School of Chemical Engineering and Technology, North University of China, Taiyuan 030051, Shanxi, China

  • b.

    State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China

  • c.

    University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China

  • d.

    Zhongke Langfang Institute of Process Engineering, Fenghua Road No 1, Langfang Economic & Technical Development Zone, Hebei, 065001, China

More Information
  • Corresponding author: E-mail address: yingluozbdx@163.com (Ying Luo); E-mail address: plcui@ipe.ac.cn (Penglei Cui); E-mail address: jyang@ipe.ac.cn (Jun Yang)
  • Received date 02 January 2020, Accepted date 11 March 2020, RevRecd date 24 February 2020, Available online 19 March 2020, Publish date 30 April 2021,
    Abstract
  • To maximize the size and structural advantages of nanomaterials in electrooxidation of ethanol, we herein report the synthesis of core–shell gold (Au)@Palladium (Pd) nanoparticles smaller than 3 nm in an ionic liquid, which combines the advantages of ionic liquids in preparing fine metal nanoparticles with the benefits of core–shell nanostructures. This synthetic strategy relies on the use of an ionic liquid (1-(2′-aminoethyl)-3-methyl-imidazolum tetrafluoroborate) as a stabilizer to produce Au particles with an average size of ca. 2.41 nm, which are then served as seeds for the formation of tiny core–shell Au@Pd nanoparticles with different Au/Pd molar ratios. The strong electronic coupling between Au core and Pd shell endows the Pd shell with an electronic structure favorable for the ethanol oxidation reaction. In specific, the ionic liquid-derived core–shell Au@Pd nanoparticles at an Au/Pd molar ratio of 1/1 exhibit the highest mass- and area-based activities, approximately 11 times than those of commercial Pd/C catalyst for ethanol electrooxidation.

     

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