Microwave Synthesis and Characterization of Size-controlled Platinum Nanoparticles Supported on Carbon Supports

Abstract

Abstract: Carbon supported platinum nanoparticles were synthesized by microwave assisted heating ethylene glycol solution of H₂PtCl₆ with different pH values in the presence of XC-72 carbon or carbon
nanotubes supports. The products were characterized by EDX, TEM and XRD. The effects of pH values of ethylene glycol solutions on the sizes and uniformity of Pt nanoparticles and their dispersion on
carbon supports surfaces were investigated. TEM images show that the average diameter of platinum nanoparticles decreases from 5.5nm to 2.7nm with the increase of pH values from 3.4 to 9.5 for Pt/XC-72,
and the average diameter from 5.3nm to 2.8nm with the increase of pH values from 3.5 to 9.4 for Pt/CNTs. In addition, increasing pH values of ethylene glycol solution can improve the size uniformity and dispersity
of platinum nanoparticles on carbon surfaces.

Key words: microwave, platinum nanoparticles, ethylene glycol, carbon supports

CLC Number:

O646
TB383

ZHAO Jie,CHEN Wei-Xiang,LI Xiang,ZHENG Yi-Fan,XU Zhu-De. Microwave Synthesis and Characterization of Size-controlled Platinum Nanoparticles Supported on Carbon Supports[J]. Journal of Inorganic Materials.

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Microwave Synthesis and Characterization of Size-controlled Platinum Nanoparticles Supported on Carbon Supports

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