Korean Journal of Chemical Engineering

The Korean Institute of Chemical Engineers (한국화학공학회)
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One-pot synthesis of PdAu bimetallic composite nanoparticles and their catalytic activities for hydrogen peroxide generation

  • Xiao, Xiangyun (Department of Chemical Engineering, Kyung Hee University) ;
  • Kang, Tae-Uook (Department of Material Science & engineering, Korea University) ;
  • Nam, Hyobin (Materials Architecturing Research Center, Korea Institute of Science and Technology) ;
  • Bhang, Suk Ho (School of Chemical Engineering, Sungkyunkwan University) ;
  • Lee, Seung Yong (Materials Architecturing Research Center, Korea Institute of Science and Technology) ;
  • Ahn, Jae-Pyung (Advanced Analysis Center, Korea Institute of Science and Technology) ;
  • Yu, Taekyung (Department of Chemical Engineering, Kyung Hee University)
  • Received : 2018.08.31
  • Accepted : 2018.10.08
  • Published : 2018.12.01
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Abstract

We report a facile one-pot aqueous-phase synthesis of PdAu bimetallic nanoparticles with different Pd/Au ratio. The synthesis was conducted by co-reduction of Pd and Au precursor using ascorbic acid as a reducing agent and in the presence of polyallylamine hydrochloride (PAH). By high-angle annular dark field scanning transmission electron microscopy (HAADF-STEM) and energy-dispersive X-ray spectrometry (EDS) analyses, we found that the synthesized nanoparticles had an onion-like core/shell/shell/shell structure with Au-rich core, Pd-rich shell, Au-rich shell, and Pd shell, respectively. We also investigated the catalytic performance of the synthesized PdAu nanoparticles toward hydrogen peroxide generation reaction.

Keywords

Acknowledgement

Supported by : National Research Foundation of Korea (NRF)

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