Platinum degradation mechanisms in proton exchange membrane fuel cell (PEMFC) system: A review

2021 ◽  
Author(s):  
Paul C. Okonkwo ◽  
Oladeji O. Ige ◽  
El Manaa Barhoumi ◽  
Paul C. Uzoma ◽  
Wilfred Emori ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Proton Exchange Membrane ◽  
Proton Exchange ◽  
Degradation Mechanisms ◽  
System A ◽  
Exchange Membrane

scholarly journals Evaluation on Thermo-Electrical Characteristics of Sio2 Nanofluids for Fuel Cell Cooling Application in Automobiles

2018 ◽  
Vol 7 (3.17) ◽  
pp. 137
Author(s):  
Suleiman Akilu ◽  
Aklilu Tesfamichael Baheta ◽  
K V. Sharma
Keyword(s):  
Fuel Cell ◽  
Ethylene Glycol ◽  
Proton Exchange Membrane ◽  
Membrane System ◽  
Proton Exchange ◽  
Electrical Performance ◽  
Particle Volume ◽  
System A ◽  
Critical Requirement ◽  
Exchange Membrane

Effective thermal management is critical requirement in fuel cell technologies to avoid the performance degradation during operation. Nanofluids offer the potential to address this cooling challenge in fuel cells better than pure fluids. However, due to the electrochemical changes associated with the proton exchange membrane system, a strict limit on thermal and electrical properties of coolant needs to comply. In this study, the thermal and electrical conductivities of silicon dioxide (SiO2) dispersion of ethylene glycol (EG), glycerol (G), and 40:60 by mass ethylene glycol-glycerol (EG/G) was investigated experimentally. Measurements were carried for particle volume concentrations of 0.25–2.0% at a temperature of 30 °C. The thermal and electrical conductivity of the nanofluids significantly increases with SiO2 loading. Maximum enhancements of ∼4.0% and ∼198% at a volume concentration of 2.0% were obtained with SiO2-EG/G, respectively. Further, analysis of the results reveals that SiO2/G exhibited the greatest thermo-electrical performance, followed by SiO2-EG/G and EG. Therefore, SiO2-EG/G nanofluid is best-suited coolant for PEM fuel cell thermal applications.  

A novel cogeneration system: A proton exchange membrane fuel cell coupled to a heat transformer

2013 ◽  
Vol 50 (2) ◽  
pp. 1530-1535 ◽  
Author(s):  
A. Huicochea ◽  
R.J. Romero ◽  
W. Rivera ◽  
G. Gutierrez-Urueta ◽  
J. Siqueiros ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Proton Exchange Membrane ◽  
Proton Exchange ◽  
System A ◽  
Cogeneration System ◽  
Exchange Membrane ◽  
Heat Transformer

Novel-SiO2-Doped Proton Exchange Membrane for Self-Humidifying Fuel Cell

2007 ◽  
Vol 336-338 ◽  
pp. 537-540
Author(s):  
Cheng Wang ◽  
Nian Fang Wan ◽  
Zong Qiang Mao ◽  
Jing Ming Xu
Keyword(s):  
Fuel Cell ◽  
Composite Membrane ◽  
Proton Exchange Membrane ◽  
Sol Gel ◽  
Chemical Properties ◽  
Proton Exchange ◽  
Nano Sio2 ◽  
System A ◽  
Physico Chemical ◽  
Exchange Membrane

To retain the optimum hydration level of the proton exchange membrane fuel cell (PEMFC) without humidification sub-system, a novel self-humidifying composite membrane was fabricated by the technology of Si[OCH2CH3]4 in situ sol-gel reaction in a commercial Nafion 112 membrane. The physico-chemical properties of the membrane were studied by means of AFM, SEM and AC impedance. These results showed that the nano-SiO2 reactant was uniformly distributed in the composite membrane. It was found that the proton conductivity increased observably by dispersing 3 wt % nano-SiO2 in the composite membrane at low water content, and the SiO2/Nafion composite membrane improved the self-humidifying performance of PEMFC.

Proton exchange membrane fuel cell degradation: mechanisms and recent progress

2010 ◽  
Author(s):  
T. Madden ◽  
M. Perry ◽  
L. Protsailo ◽  
M. Gummalla ◽  
S. Burlatsky ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Proton Exchange Membrane ◽  
Recent Progress ◽  
Proton Exchange ◽  
Degradation Mechanisms ◽  
Exchange Membrane

Degradation mechanisms of proton exchange membrane fuel cell under typical automotive operating conditions

2020 ◽  
Vol 80 ◽  
pp. 100859 ◽  
Author(s):  
Peng Ren ◽  
Pucheng Pei ◽  
Yuehua Li ◽  
Ziyao Wu ◽  
Dongfang Chen ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Proton Exchange Membrane ◽  
Proton Exchange ◽  
Operating Conditions ◽  
Degradation Mechanisms ◽  
Exchange Membrane
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