Unravelling the promoting effect of the ultrathin TaC/RGO nanosheet hybrid for enhanced catalytic activity of Pd nanoparticles

Chunyong He; Juzhou Tao; Guoqiang He; Pei Kang Shen; Yongfu Qiu

doi:10.1039/C6CY01043A

Unravelling the promoting effect of the ultrathin TaC/RGO nanosheet hybrid for enhanced catalytic activity of Pd nanoparticles†

Chunyong He,*^ab Juzhou Tao,*^ab Guoqiang He,^c Pei Kang Shen*^c and Yongfu Qiu^d

* Corresponding authors

^a Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing 100049, China
E-mail: hechunyong@ihep.ac.cn, taoj@ihep.ac.cn

^b Dongguan Neutron Science Center, Dongguan 523803, China

^c Collaborative Innovation Center of Sustainable Energy Materials, Guangxi University, Nanning, Guangxi, PR China
E-mail: pkshen@gxu.edu.cn

^d College of Chemistry and Environmental Engineering, Dongguan University of Technology, Guangdong 523808, PR China

Abstract

A novel two-dimensional ultrathin TaC/reduced graphene oxide (RGO) nanosheet hybrid was employed as a co-catalyst to Pd nanoparticles (Pd/TaC-G). Compared to Pd/C, Pd/TaC-G exhibits remarkably enhanced catalytic activity, resistance to poisonous intermediates and durability for methanol oxidation reaction (MOR) in direct methanol fuel cells (DMFCs). Experimental results from X-ray photoelectron spectroscopy (XPS) and X-ray absorption spectroscopy (XAS) reveal the synergetic chemical coupling between the Pd nanoparticles and the TaC/RGO nanosheet hybrid, which is likely the reason for the enhanced catalytic activity of Pd/TaC-G. This work established a new strategy to overcome the drawbacks of the noble metal catalyst through improving the catalytic activity, resistance to poisonous intermediates and durability via a two-dimensional hybrid, providing a new approach to develop the next generation catalysts in DMFCs.

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DOI: https://doi.org/10.1039/C6CY01043A
Article type: Paper
Submitted: 12 May 2016
Accepted: 04 Jul 2016
First published: 04 Jul 2016

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Catal. Sci. Technol., 2016,6, 7086-7093

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Unravelling the promoting effect of the ultrathin TaC/RGO nanosheet hybrid for enhanced catalytic activity of Pd nanoparticles

C. He, J. Tao, G. He, P. K. Shen and Y. Qiu, Catal. Sci. Technol., 2016, 6, 7086 DOI: 10.1039/C6CY01043A

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Catalysis Science & Technology

Unravelling the promoting effect of the ultrathin TaC/RGO nanosheet hybrid for enhanced catalytic activity of Pd nanoparticles†

Abstract

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Unravelling the promoting effect of the ultrathin TaC/RGO nanosheet hybrid for enhanced catalytic activity of Pd nanoparticles

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