Microwave-assisted synthesis of silica aerogel supported pt nanoparticles for self-humidifying proton exchange membrane fuel cell

2012 ◽  
Vol 37 (9) ◽  
pp. 7669-7676 ◽  
Author(s):  
Cheng-Hsiu Tsai ◽  
Feng-Lien Yang ◽  
Ching-Hung Chang ◽  
Yui Whei Chen-Yang
Keyword(s):  
Fuel Cell ◽  
Silica Aerogel ◽  
Proton Exchange Membrane ◽  
Pt Nanoparticles ◽  
Proton Exchange ◽  
Microwave Assisted Synthesis ◽  
Microwave Assisted ◽  
Exchange Membrane

scholarly journals Polyaniline Based Pt-Electrocatalyst for a Proton Exchanged Membrane Fuel Cell

Polymers ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 617 ◽  
Author(s):  
Wen-Yao Huang ◽  
Mei-Ying Chang ◽  
Yen-Zen Wang ◽  
Yu-Chang Huang ◽  
Ko-Shan Ho ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Proton Exchange Membrane ◽  
Pt Nanoparticles ◽  
Reduction Reaction ◽  
Proton Exchange ◽  
Pt Catalyst ◽  
Emeraldine Base ◽  
Cyclic Voltammograms ◽  
Typical Type ◽  
Exchange Membrane

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 diffraction spectra demonstrate Pt particles are successfully obtained on the EB-XC72 when the calcined temperature is higher than 600 °C. Micrographs of TEM and SEM illustrate the affluent, Pt nanoparticles are uniformly distributed on EB-XC72 at 800 °C (Pt/EB-XC72/800). More Pt is deposited on Pt/EB-XC72 composite as temperatures are higher than 600 °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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