An opinion on catalyst degradation mechanisms during catalyst support focused accelerated stress test (AST) for proton exchange membrane fuel cells (PEMFCs)

R Sharma, SM Andersen - Applied Catalysis B: Environmental, 2018 - Elsevier
Accelerated stress test (AST) protocol meant to study the durability of catalyst support in a
polymer electrolyte membrane fuel cell (PEMFC) electrode has been critically evaluated. For …

Development of Highly Active and Stable Catalyst Supports and Platinum–Free Catalysts for PEM Fuel Cell

WS Jung, T Kim, BN Popov - Journal of The Electrochemical …, 2022 - iopscience.iop.org
Abstract Metal-free, metal-containing, and template-assisted metal-containing nitrogen-
modified carbon-based catalysts carbon composite supports, and highly active and …

[HTML][HTML] Gram-size Pt/C catalyst synthesized using Pt compound directly recovered from an end-of-life PEM fuel cell stack

M Chourashiya, R Sharma, S Gyergyek… - Materials Chemistry and …, 2022 - Elsevier
The proton exchange membrane fuel cell (PEMFC) technology is getting closer to its
maturity. However, the use of PEMFCs in fuel cell vehicles needs to tackle the challenges …

Microstructure-based modeling of aging mechanisms in catalyst layers of polymer electrolyte fuel cells

K Malek, AA Franco - The Journal of Physical Chemistry B, 2011 - ACS Publications
This work is comprised of a versatile multiscale modeling of carbon corrosion processes in
catalyst layers (CLs) of polymer electrolyte fuel cells (PEFCs). Slow rates of electrocatalytic …

Nanocrystalline tungsten carbide (WC) synthesis/characterization and its possible application as a PEM fuel cell catalyst support

W Zhu, A Ignaszak, C Song, R Baker, R Hui, J Zhang… - Electrochimica …, 2012 - Elsevier
Nanocrystalline tungsten carbide (WC) with a high surface area and containing minimal free
carbon was synthesized via a polymer route. Its physical properties, including solubility in …

Pt/C electrocatalyst durability enhancement by inhibition of Pt nanoparticle growth through microwave pretreatment of carbon support

R Sharma, S Gyergyek, J Chamier, P Morgen… - …, 2021 - Wiley Online Library
Durability enhancement of Pt supported on carbon (Pt/C) electrocatalysts through a simple
microwave (MW) pretreatment of the carbon support has been studied. Vulcan XC 72 carbon …

Modelling carbon corrosion during a PEMFC startup: simulation of mitigation strategies

B Randrianarizafy, P Schott, M Gerard, Y Bultel - Energies, 2020 - mdpi.com
This paper presents a study of the carbon support corrosion and mitigation strategies
through the use of a pseudo-3D model. This model consists in coupling a 2D model along …

Pt x Co y Catalysts Degradation in PEFC Environments: Mechanistic Insights: I. Multiscale Modeling

AA Franco, S Passot, P Fugier, C Anglade… - Journal of The …, 2009 - iopscience.iop.org
In this article, we focus on the understanding of the electrocatalysts degradation in polymer
electrolyte fuel cell (PEFC) environments. A multiscale atomistic/kinetic model is derived …

Development of catalytically active and highly stable catalyst supports for polymer electrolyte membrane fuel cells

T Kim, T Xie, W Jung, F Gadala-Maria, P Ganesan… - Journal of Power …, 2015 - Elsevier
Novel procedures are developed for the synthesis of highly stable carbon composite catalyst
supports (CCCS-800° C and CCCS-1100° C) and an activated carbon composite catalyst …

Analysis of oxygen sources and reaction pathways of carbon support corrosion at the cathode in PEMFC using oxygen-18 DEMS

W Li, AM Lane - Electrochimica acta, 2010 - Elsevier
Oxygen gas, water used to humidify the gases, and surface oxides originated from the
carbon black and catalyst preparation are the three possible oxygen sources contributing to …