Rapidly dispersion and loading of Pt nanoparticles on CNTs for DMFC electrodes

Mi Chen*, Chieng Ming Chen, Hung Wei Yu, Su Chen Lu, Horng Show Koo

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this article, platinum nanoparticles with uniform diameter (about 4.3 nm) were efficiently dispersed on multi-walled carbon nanotubes (MWCNTs) with temperature controlled, microwave assisted polyol method. Temperature is an important factor that affects the reduction rate of Pt particles from chloroplatinic acid. In a microwave system, chloroplatinic acid is rapidly dissociated and reduced. Pt catalyst particles are then deposited on the MWCNTs. An addition of sodium dodecyl sulfate (SDS) and poly-vinyl pyrrolidone (PVP) in chloroplatinic acid/ ethylene glycol (EG) solution can efficiently disperse the catalyst particles homogenously on MWCNT, enhance the adsorption of platinum particles, and reduce the residue of platinum particles. The results indicate that the optimal temperature range from 140 to 160°C, and that the loading amount of Pt/CNTs can achieve more than 50 wt % for only 90 seconds of processing time. The significant improvement in dispersion and loading is due to the ability of SDS, which wraps the PVP-stabilized Pt nanoparticles around the surface of carbon nanotubes. The characterization analyses are conducted by using SEM, TEM, XRD, XPS, and TGA.

Original languageEnglish
Title of host publication2008 2nd IEEE International Nanoelectronics Conference, INEC 2008
Pages948-953
Number of pages6
DOIs
StatePublished - 2008
Event2008 2nd IEEE International Nanoelectronics Conference, INEC 2008 - Shanghai, China
Duration: 24 Mar 200827 Mar 2008

Publication series

Name2008 2nd IEEE International Nanoelectronics Conference, INEC 2008

Conference

Conference2008 2nd IEEE International Nanoelectronics Conference, INEC 2008
CountryChina
CityShanghai
Period24/03/0827/03/08

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  • Cite this

    Chen, M., Chen, C. M., Yu, H. W., Lu, S. C., & Koo, H. S. (2008). Rapidly dispersion and loading of Pt nanoparticles on CNTs for DMFC electrodes. In 2008 2nd IEEE International Nanoelectronics Conference, INEC 2008 (pp. 948-953). [4585641] (2008 2nd IEEE International Nanoelectronics Conference, INEC 2008). https://doi.org/10.1109/INEC.2008.4585641