Abstract—An easy and quick way to deposit platinum (Pt)-ruthenium (Ru) alloy nanoparticles on hydrous ruthenium dioxide (RuO2.xH2O) as supporting materials was developed using microwave heating. The x-ray diffractometer and selective area electron diffraction (SAED) showed that Pt-Ru alloy was formed. The transmission electron microscopic (TEM) image showed that average size of Pt-Ru was about 2-3 nm. Cyclic voltammogram of a Pt-Ru/RuO2.xH2O electrode showed high specific capacitance due to the protonation reaction in the acidic electrolyte and catalytic activity, including the methanol oxidation. The new Pt-Ru/RuO2.xH2O can be used as anode electrode materials in monolithic fuel cell/supercapacitor hybrid energy devices, since it has already been demonstrated that a layer of RuO2.xH2O sandwiched between anode catalytic layer and a membrane improved the dynamic response of the direct methanol fuel cell (DMFC).
Index Terms—Direct methanol fuel cell, super capacitor, hybrid, and RuO2.xH2O.
J. P. Zheng and V. Tiwari are with the Department of Electrical and Computer Engineering, Florida State University, Tallahassee, FL, USA (e-mail: zheng@eng.fsu.edu, tiwarvi@eng.fsu.edu).
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Cite:J. P. Zheng and V. Tiwari, "Deposition of Pt and Pt-Ru Nanoparticles on RuO2.xH2O Using Microwave Method for Direct Methanol Fuel Cells," Journal of Clean Energy Technologies vol. 5, no. 3, pp. 183-187, 2017.
