PBI / H 3 PO 4 Gel Based Polymer Electrolyte Membrane Fuel Cells Under the Influence of Reformates

Author(s):  
George C. Bandlamudi ◽  
M. Saborni ◽  
P. Beckhaus ◽  
F. Mahlendorf ◽  
A. Heinzel

High temperature polymer electrolyte membrane fuel cells (HT PEMFCs) offer tremendous flexibility when used as energy converters in stationary as well as mobile power devices. Coupling HT PEMFC stacks with fuel processors that use liquid as well as gaseous fuels to generate hydrogen rich gas is a promising prospect, which paves the way for a possible hydrogen economy. The current paper deals with the performance aspects of a 150 Wel HT PEMFC stack, which potentially could be coupled to (i) a natural gas reformer, (ii) a propane reformer, or (iii) a methanol reformer. A 12 cell HT PEMFC stack with a total active area of about 600 cm2 was operated in a test rack, and the results show that HT PEMFCs are principally suited for operation with reformates.

2021 ◽  
Author(s):  
Gokul Venugopalan ◽  
Deepra Bhattacharya ◽  
Subarna Kole ◽  
Cameron Ysidron ◽  
Polyxeni P. Angelopoulou ◽  
...  

Ionomer electrode binders are important materials for polymer electrolyte membrane (PEM) fuel cells and electrolyzers and have a profound impact on cell performance. Herein, we report the effect of two...


NANO ◽  
2008 ◽  
Vol 03 (05) ◽  
pp. 381-386 ◽  
Author(s):  
DANIELA EBRASU ◽  
IOAN STAMATIN ◽  
ASHOK VASEASHTA

The objective of this investigation is to evaluate a series of polymer electrolyte membrane materials based on sulfonated ladder pyridine polymers and SiO 2 nanoparticles that enhance water retention and favor high temperature (> 120°C) applications. Nanoparticles are used to improve water uptake at levels of 20–38% to increase the level of sulfonation. A study of relevant characteristics of these polymers will provide an alternative to existing polymers, thus offering simple processing steps, as well as nonexotic polymers and higher performances.


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