Journal ArticleDOI
Electrocatalytic corrosion of carbon support in PEMFC cathodes
TLDR
In this paper, the influence of platinum on the corrosion of carbon catalyst supports has been characterized by on-line mass spectroscopy during cyclic voltammetry, with varying Pt mass fraction, catalyst type, and temperature.Abstract:
The influence of platinum on the corrosion of carbon catalyst supports has been characterized by on-line mass spectroscopy during cyclic voltammetry, with varying Pt mass fraction, catalyst type, and temperature. The generation rates increased with higher Pt mass fraction (0, 10, and 39% balanced by Vulcan XC-72). A peak observed at approximately for Pt/C was lowered to for PtRu/C. An Arrenhius plot indicated higher apparent activation energy for production at the positive potential limit of the cyclic voltammogram on 0% Pt (carbon-only) electrode than on 39% Pt/C electrode. It was concluded that platinum accelerated the corrosion rate of the carbon catalyst support. © 2003 The Electrochemical Society. All rights reserved.read more
Citations
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Journal ArticleDOI
Scientific aspects of polymer electrolyte fuel cell durability and degradation.
Rodney L. Borup,Jeremy P. Meyers,Bryan S. Pivovar,Yu Seung Kim,Rangachary Mukundan,Nancy Garland,Deborah J. Myers,Mahlon S. Wilson,Fernando H. Garzon,David L. Wood,Piotr Zelenay,Karren L. More,Ken Stroh,Thomas A. Zawodzinski,James M. Boncella,James E. McGrath,Minoru Inaba,Kenji Miyatake,Michio Hori,Kenchiro Ota,Zempachi Ogumi,Seizo Miyata,Atsushi Nishikata,Zyun Siroma,Yoshiharu Uchimoto,Kazuaki Yasuda,Ken'ichi Kimijima,Norio Iwashita +27 more
TL;DR: The research focuses on the durability of polymer electrolyte fuel cells (PEFCs), in particular, membrane degradation, and he has been involved in NEDO R&D research projects on PEFC durability since 2001.
Journal ArticleDOI
A review of PEM fuel cell durability: Degradation mechanisms and mitigation strategies
Jinfeng Wu,Xiao-Zi Yuan,Jonathan J. Martin,Haijiang Wang,Jiujun Zhang,Jun Shen,Shaohong Wu,Walter Mérida,Walter Mérida +8 more
TL;DR: In this paper, a literature-based analysis has been carried out in an attempt to achieve a unified definition of PEM fuel cell lifetime for cells operated either at a steady state or at various accelerated conditions.
Journal ArticleDOI
Understanding and Approaches for the Durability Issues of Pt-Based Catalysts for PEM Fuel Cell
TL;DR: In this article, the state-of-the-art understanding of durability issues of Pt-based catalysts for proton exchange membrane fuel cell (PEMFC) and the approaches for improving and studying catalyst durability are reviewed.
Journal ArticleDOI
High temperature PEM fuel cells
Jianlu Zhang,Zhong Xie,Jiujun Zhang,Yanghua Tang,Chaojie Song,Titichai Navessin,Zhiqing Shi,Datong Song,Haijiang Wang,David P. Wilkinson,David P. Wilkinson,Zhong-Sheng Liu,Steven Holdcroft,Steven Holdcroft +13 more
TL;DR: A review of high temperature PEM fuel cells (HT-PEMFCs) from the perspective of HT-specific materials, designs, and testing/diagnostics is provided in this paper.
Journal ArticleDOI
Review: Durability and degradation issues of PEM fuel cell components
TL;DR: In this article, the degradation mechanisms of membranes, electrodes, bipolar plates and seals of PEM fuel cells were evaluated under constant load conditions, at a relative humidity close to 100% and at a temperature of maximum 75°C, using optimal stack and flow design.
References
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Book
Carbon: Electrochemical and Physicochemical Properties
TL;DR: In this paper, the authors present characterstics and properties of Carbon Electrodes, including physical properties, chemical and surface properties, as well as properties of carbon in the context of electrochemical systems.
Journal ArticleDOI
Methanol electrooxidation on well-characterized platinum-ruthenium bulk alloys
TL;DR: In this paper, the catalytic activity of single-phase polycrystalline Pt-Ru bulk alloys toward the electrooxidation of methanol in sulfuric acid electrolyte at room temperature was measured for the first time on well-characterized alloy surfaces, in terms of surface composition and true surface area.
Journal ArticleDOI
The influence of Pt-activation on the corrosion of carbon in gas diffusion electrodes. A DEMS study
J. Willsau,J. Heitbaum +1 more
TL;DR: In this article, the potential of the anodic oxidation of carbon electrodes using differential electrochemical mass spectroscopy (DEMS) was investigated and it was shown that pure carbon is oxidized only at potentials higher than 0.9 V (RHE) with CO2 and, to a lesser extent, CO being the main products.
Journal ArticleDOI
Electrocatalytic Activity of Ru-Modified Pt(111) Electrodes toward CO Oxidation
TL;DR: The electrochemical deposition of Ru on Pt(111) electrodes has been investigated by electron diffraction, Auger spectroscopy, and cyclic voltammetry in a closed UHV transfer system as mentioned in this paper.
Journal ArticleDOI
The influence of Pt on the electrooxidation behaviour of carbon in phosphoric acid
Enza Passalacqua,Pier Luigi Antonucci,M. Vivaldi,A. Patti,Vincenzo Antonucci,N. Giordano,K. Kinoshita +6 more
TL;DR: In this article, the electrooxidation behavior of Pt/C catalysts for phosphoric acid fuel cells (PAFC) has been investigated by potentiostatic tests in the potential range 0.6 ÷ 1.0 V (rhe).
Related Papers (5)
Scientific aspects of polymer electrolyte fuel cell durability and degradation.
Rodney L. Borup,Jeremy P. Meyers,Bryan S. Pivovar,Yu Seung Kim,Rangachary Mukundan,Nancy Garland,Deborah J. Myers,Mahlon S. Wilson,Fernando H. Garzon,David L. Wood,Piotr Zelenay,Karren L. More,Ken Stroh,Thomas A. Zawodzinski,James M. Boncella,James E. McGrath,Minoru Inaba,Kenji Miyatake,Michio Hori,Kenchiro Ota,Zempachi Ogumi,Seizo Miyata,Atsushi Nishikata,Zyun Siroma,Yoshiharu Uchimoto,Kazuaki Yasuda,Ken'ichi Kimijima,Norio Iwashita +27 more