Carboxylated carbonized polyaniline nanofibers as Pt-catalyst conducting support for proton exchange membrane fuel cell

2014 ◽  
Vol 188 ◽  
pp. 21-29 ◽  
Author(s):  
Yen-Zen Wang ◽  
Kai-Jay Chang ◽  
Li-Fan Hung ◽  
Ko-Shan Ho ◽  
Jing-Ping Chen ◽  
...  
Author(s):  
Kevin R. Anderson ◽  
Andrew Murphy

Abstract In this study 3-D CFD modeling of a cylindrical stack Proton-exchange membrane fuel cell (PEMFC) is provided. The H2O-O2 PEMFC uses a 10.8 mm2 area membrane and Platinum (Pt) catalyst. The paper presents the methodology for the PEMFC commercial software module, the set-up of the Computational Fluid Dynamics (CFD) geometry, mesh and boundary conditions. Results for the current-voltage performance curves and 3-D contour plots of the fluid, heat and species concentrations within the PEMFC are given. Results are presented for a low-temperature fuel cell using NAFION membrane and a high-temperature fuel cell using BZY membrane.


Polymers ◽  
2020 ◽  
Vol 12 (3) ◽  
pp. 617 ◽  
Author(s):  
Wen-Yao Huang ◽  
Mei-Ying Chang ◽  
Yen-Zen Wang ◽  
Yu-Chang Huang ◽  
Ko-Shan Ho ◽  
...  

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.


2019 ◽  
Vol 9 ◽  
pp. 184798041985315 ◽  
Author(s):  
Abdulrahman Alsaeedi ◽  
Yoshiyuki Show

One of the applications of nano-carbon is a support material of platinum (Pt) catalyst for fuel cells. In this study, the nano-carbon was successfully synthesized by in-liquid plasma in ethanol. The synthesized nano-carbon was characterized by the transmission electron microscope and the Raman spectroscopy. Moreover, the nano-carbon was applied to a support material of Pt catalyst for a proton exchange membrane fuel cell. The formation of the Pt particles on the nano-carbon was also carried out using the in-liquid plasma. The formed Pt/nano-carbon worked as a catalyst of the fuel cell. The fuel cell, fabricated with the Pt/nano-carbon catalyst, generated the maximum output power of 580 mW.


2020 ◽  
Vol 4 (7) ◽  
pp. 3640-3646
Author(s):  
Dewei Yao ◽  
Hongmei Yu ◽  
Wei Song ◽  
Xueqiang Gao ◽  
Zhixuan Fan ◽  
...  

The high cost and huge consumption of the Pt catalyst hinder the large-scale commercialization of fuel cells.


2007 ◽  
Vol 20-21 ◽  
pp. 655-658 ◽  
Author(s):  
P. Yong ◽  
I.P. Mikheenko ◽  
Lynne E. Macaskie

Nano-scale palladium was bio-manufactured via enzymatically-mediated deposition of Pd(II) from solution. The bio-accumulated metal palladium crystals were processed and applied onto carbon paper and tested as anodes in a proton exchange membrane (PEM) fuel cell for power production. Up to 85% and 31% of the maximum power generation was achieved by Bio-Pd catalysts made using two strains of bacteria, compared to commercial fuel cell grade Pt catalyst. Therefore, it is feasible to use bio-synthesized catalysts in fuel cells for electricity production.


Polymer ◽  
2014 ◽  
Vol 55 (8) ◽  
pp. 2035-2043 ◽  
Author(s):  
Rong-Hua Wu ◽  
Ming-Jer Tsai ◽  
Ko-Shan Ho ◽  
Ting-En Wei ◽  
Tar-Hwa Hsieh ◽  
...  

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