Citation: Napha Sudachom, Chompunuch Warakulwit, Chaiwat Prapainainar, Thongthai Witoon, Paweena Prapainainar. One step NaBH₄ reduction of Pt-Ru-Ni catalysts on different types of carbon supports for direct ethanol fuel cells: Synthesis and characterization[J]. Journal of Fuel Chemistry and Technology, ;2017, 45(5): 596-607. shu

One step NaBH₄ reduction of Pt-Ru-Ni catalysts on different types of carbon supports for direct ethanol fuel cells: Synthesis and characterization

1.
National Center of Excellence for Petroleum, Petrochemicals and Advance Material, Department of Chemical Engineering, Faculty of Engineering, Kasetsart University, Bangkok 10900, Thailand
2.
Center for Advanced Studies in Nanotechnology for Chemical, Food and Agricultural Industries, KU Institute for Advanced Studies, Kasetsart University, Bangkok 10900, Thailand
3.
Physical Chemistry Department, Kasetsart University, Bangkok 10900, Thailand
4.
Department of Chemical Engineering, King Mongkut's University of Technology North Bangkok, Bangkok 10800, Thailand
5.
Research and Development Centre for Chemical Engineering Unit Operation and Catalyst Design, King Mongkut's University of Technology North Bangkok, Bangkok 10800, Thailand

Corresponding author: Paweena Prapainainar, fengpwn@ku.ac.th
Received Date: 21 December 2016
Revised Date: 9 March 2017

Fund Project: the Institutional Research Grant IRG598004

Figures(11)

The ternary catalyst Pt₇₅Ru₅Ni₂₀ was conducted on various types of carbon supports including functionalized Vulcan XC-72R (f-CB), functionalized multi-walled carbon nanotubes (f-MWCNT), and mesoporous carbon (PC-Zn-succinic) by sodium borohydride chemical reduction method to improve the ethanol electrooxidation reaction (EOR) for direct ethanol fuel cell (DEFC). It was found that the particle size of the metals on f-MWCNT was 5.20 nm with good particle dispersion. The alloy formation of ternary catalyst was confirmed by XRD and more clearly described by SEM element mapping, which was relevant to the efficiency of the catalysts. Moreover, the mechanism of ethanol electrooxidation reaction based on the surface reaction was more understanding. The activity and stability for ethanol electrooxidation reaction (EOR) were investigated using cyclic voltammetry and chronoamperometry, respectively. The highest activity and stability for EOR were observed from Pt₇₅Ru₅Ni₂₀/f-MWCNT due to a good metal-carbon interaction. Ru and Ni presented in Pt-Ru-Ni alloy improved the activity and stability of ternary catalysts for EOR. Moreover, the reduction of Pt content in ternary catalyst led to the catalyst cost deduction in DEFC.
- ternary catalyst,
- ethanol electrooxidation reaction,
- multiwall carbon nanotubes,
- mesoporous carbon
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One step NaBH4 reduction of Pt-Ru-Ni catalysts on different types of carbon supports for direct ethanol fuel cells: Synthesis and characterization

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One step NaBH₄ reduction of Pt-Ru-Ni catalysts on different types of carbon supports for direct ethanol fuel cells: Synthesis and characterization