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Polymers 2017, 9(3), 104; doi:10.3390/polym9030104

Microwave Assisted Reduction of Pt-Catalyst by N-Phenyl-p-Phenylenediamine for Proton Exchange Membrane Fuel Cells

1
Department of Chemical and Materials Engineering, National Kaohsiung University of Applied Sciences, 415, Chien-Kuo Road, Kaohsiung 80782, Taiwan
2
Department of Chemical and Materials Engineering, National Yun-Lin University of Science and Technology, Yun-Lin 64002, Taiwan
*
Author to whom correspondence should be addressed.
Academic Editor: Marinos Pitsikalis
Received: 8 January 2017 / Revised: 7 March 2017 / Accepted: 8 March 2017 / Published: 15 March 2017
(This article belongs to the Special Issue Metal Complexes-Mediated Catalysis in Polymerization)
View Full-Text   |   Download PDF [3899 KB, uploaded 15 March 2017]   |  

Abstract

The presence of N-phenyl-p-phenylenediamine (PPDA: a dimer of aniline) during microwave (MW) irradiation can significantly improve Pt-loading on the XC72 carbon matrix as a catalyst support of proton exchange membrane fuel cells (PEMFCs). PPDA is converted to an emeraldine base state during MW-assisted redox reaction, which is characterized by both FTIR and Raman spectra. The increased degree of conjugation from the formation of quinone-state of PPDA is confirmed by UV-VIS spectra. TEM micrographs and residue weights obtained from the TGA thermograms illustrate the particle size and Pt-loading percent of Pt nanoparticles (NPs) after MW irradiation, respectively. X-ray diffraction patterns indicate Pt NPs are successfully loaded on XC72 by MW irradiation corresponding to hydrothermal method. The single cell performance demonstrates an increasing power and maximum current density when Pt-catalyst of membrane exchanged assembly (MEA) is prepared by MW-assisted reduction in the presence of PPDA. View Full-Text
Keywords: N-phenyl-p-phenylenediamine; aniline dimer; microwave; Pt-catalyst; fuel cell N-phenyl-p-phenylenediamine; aniline dimer; microwave; Pt-catalyst; fuel cell
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Tsai, M.-J.; Hsieh, T.-H.; Wang, Y.-Z.; Ho, K.-S.; Chang, C.-Y. Microwave Assisted Reduction of Pt-Catalyst by N-Phenyl-p-Phenylenediamine for Proton Exchange Membrane Fuel Cells. Polymers 2017, 9, 104.

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