Poly(Dimethylbenzimidazolium) Iodide Assisted Dispersion of Multiwalled Carbon Nanotubes and Their Palladium Nanoparticle Hybrid

doi:10.1007/s12204-018-2033-7

Abstract

Abstract: The multi walled carbon nanotubes (MWNTs) have always been as the catalyst supporting materials, but for high-performance composite catalysts, the dispersion and functionalization of MWNTs are important challenging problems. In this paper, Electrocatalytically active palladium nanoparticles (Pd NPs) on MWNTs with the high-performance and excellent solubility polymer, poly(dimethylbenzimidazolium) iodide (P(DMBI)-I?) as modifier and glue was first discussed. The results of transmission electron microscopy (TEM) demonstrate a better dispersion of MWNTs with the assist of P(DMBI)-I?. The Raman spectra indicate a strong π-π interaction between MWNTs and P(DMBI)-I?. Taking advantages of the coordination effect of imidazole groups and the electrostatic attraction to Pd NPs, the prepared Pd/MWNTs-P(DMBI)-I?(Pd/MPDI?) hybrid is of well electrocatalytic activity to the ethanol fuel cells by electrochemical measurements. So it is believed that P(DMBI)-I?can be further applied in the dispersion of different carbon-based materials and metal nanoparticles for fabricating more novel composites for catalyst and electrode material.

Key words: MWNTs| P(DMBI)-I?| Pd NPs| electro-catalytic activity| ethanol

摘要： The multi walled carbon nanotubes (MWNTs) have always been as the catalyst supporting materials, but for high-performance composite catalysts, the dispersion and functionalization of MWNTs are important challenging problems. In this paper, Electrocatalytically active palladium nanoparticles (Pd NPs) on MWNTs with the high-performance and excellent solubility polymer, poly(dimethylbenzimidazolium) iodide (P(DMBI)-I?) as modifier and glue was first discussed. The results of transmission electron microscopy (TEM) demonstrate a better dispersion of MWNTs with the assist of P(DMBI)-I?. The Raman spectra indicate a strong π-π interaction between MWNTs and P(DMBI)-I?. Taking advantages of the coordination effect of imidazole groups and the electrostatic attraction to Pd NPs, the prepared Pd/MWNTs-P(DMBI)-I?(Pd/MPDI?) hybrid is of well electrocatalytic activity to the ethanol fuel cells by electrochemical measurements. So it is believed that P(DMBI)-I?can be further applied in the dispersion of different carbon-based materials and metal nanoparticles for fabricating more novel composites for catalyst and electrode material.

关键词: MWNTs| P(DMBI)-I?| Pd NPs| electro-catalytic activity| ethanol

CLC Number:

O 633.5

ZHANG Yanli (张燕黎), YU Ping (宇平), PAN Lijing (潘丽静), XUE Minzhao (薛敏钊), WANG Wei (王巍), HU Zuming (胡祖明). Poly(Dimethylbenzimidazolium) Iodide Assisted Dispersion of Multiwalled Carbon Nanotubes and Their Palladium Nanoparticle Hybrid[J]. Journal of Shanghai Jiao Tong University (Science), 2018, 23(Sup. 1): 132-136.

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