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A combined physicochemical and electrocatalytic study of microwave synthesized tungsten mono-carbide nanoparticles on multiwalled carbon nanotubes as a co-catalyst for a proton-exchange membrane fuel cell

Title
A combined physicochemical and electrocatalytic study of microwave synthesized tungsten mono-carbide nanoparticles on multiwalled carbon nanotubes as a co-catalyst for a proton-exchange membrane fuel cell
Authors
Rahsepar, M[Rahsepar, Mansour]Pakshir, M[Pakshir, Mahmoud]Nikolaev, P[Nikolaev, Pavel]Piao, Y[Piao, Yuanzhe]Kim, H[Kim, Hasuck]
DGIST Authors
Rahsepar, M[Rahsepar, Mansour]; Kim, H[Kim, Hasuck]
Issue Date
2014-09-23
Citation
International Journal of Hydrogen Energy, 39(28), 15706-15717
Type
Article
Article Type
Article
Keywords
Carbide NanoparticlesCarbon NanotubesCocatalystElectrocatalystsElectrocatalyticFuel CellFuel CellsTungsten Carbide
ISSN
0360-3199
Abstract
Tungsten mono-carbide (WC) nanoparticles supported on multiwalled carbon nanotube (MWCNT) was synthesized by a microwave-assisted solid-state carburization. The prepared samples were used as a co-catalyst to prepare Pt-WC/MWCNT catalyst for a proton-exchange membrane fuel cell. MWCNTs with and without oxidative pretreatments were characterized as the starting precursors. The influence of the carbide formation conditions on the physicochemical characteristics of the final product were extensively investigated. According to the results, surface pretreatment of the MWCNTs can improve the yield of carbide formation. Furthermore, carburization process can improve the catalyst utilization due to increasing the number of surface defects of the MWCNT supporting materials which can be interpreted as structural effect of the carburization process. It is believed that the superior performance of electrodes modified with tungsten carbide is mostly due to the structural effect of the carburization process and synergistic effect between the electrocatalytic activity of WC and Pt. © 2014 Hydrogen Energy Publications, LLC.
URI
http://hdl.handle.net/20.500.11750/2643
DOI
10.1016/j.ijhydene.2014.07.152
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Files:
There are no files associated with this item.
Collection:
Energy Science and EngineeringETC1. Journal Articles


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