Journal
POLYMERS
Volume 12, Issue 3, Pages -Publisher
MDPI
DOI: 10.3390/polym12030617
Keywords
polyaniline; vulcan carbon black; Pt-catalyst; PEMFC
Categories
Funding
- Minister of Science and Technology in Taiwan, ROC [MOST 105-2622-E-151-012-CC3, MOST 106-2221-E-151-036, MOST 107-2221-E-992-0763, MOST 108-2221-E-992-037]
- Taiwan Textile Research Institute [TTRI-107-E0206]
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Calcination reduction reaction is used to prepare Pt/EB (emeraldine base)-XC72 (Vulcan carbon black) composites as the cathode material of a proton exchange membrane fuel cell (PEMFC). The EB-XC72 core-shell composite obtained from directly polymerizing aniline on XC72 particles is able to chelate and capture the Pt-ions before calcination. X-ray di ffraction spectra demonstrate Pt particles are successfully obtained on the EB-XC72 when the calcined temperature is higher than 600 degrees C. Micrographs of TEM and SEM illustrate the afluent, Pt nanoparticles are uniformly distributed on EB-XC72 at 800 degrees C (Pt/EB-XC72/800). More Pt is deposited on Pt/EB-XC72 composite as temperatures are higher than 600 degrees C. The Pt /EB-XC72 /800 catalyst demonstrates typical type of a cyclic voltammograms (C-V) curve of a Pt-catalyst with clear Pt-H oxidation and Pt-O reduction peaks. The highest number of transferred electrons during ORR approaches 3.88 for Pt /EB-XC72 /800. The maximum power density of the single cell based on Pt/EB-XC72/800 reaches 550 mW cm(-2).
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