Journal ArticleDOI
Degradation mechanism study of perfluorinated proton exchange membrane under fuel cell operating conditions
TLDR
In this article, the peroxide radical-initiated attack of the membrane electrode interface is investigated under fuel cell operating conditions, to better determine the fundamental degradation mechanism and find the pathway of membrane degradation as well.About:
This article is published in Electrochimica Acta.The article was published on 2008-03-10. It has received 168 citations till now. The article focuses on the topics: Proton exchange membrane fuel cell & Membrane electrode assembly.read more
Citations
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Journal ArticleDOI
A review of accelerated stress tests of MEA durability in PEM fuel cells
Shengsheng Zhang,Shengsheng Zhang,Xiao-Zi Yuan,Haijiang Wang,Walter Mérida,Walter Mérida,Hong Zhu,Jun Shen,Shaohong Wu,Jiujun Zhang +9 more
TL;DR: In this article, a review of recent work done on accelerated stress tests in the study of PEM fuel cell durability is presented, with a primary focus on the main components of the membrane electrode assembly (MEA).
Journal ArticleDOI
Recent Insights into Manganese Oxides in Catalyzing Oxygen Reduction Kinetics
TL;DR: In this paper, the authors summarize and analyze literature findings to highlight key parameters that influence the catalysis of the ORR on manganese-based oxides, including the number of electrons transferred as well as specific and mass activities.
Journal ArticleDOI
Performance enhancement and degradation mechanism identification of a single-atom Co–N–C catalyst for proton exchange membrane fuel cells
Xiaohong Xie,Cheng He,Boyang Li,Yanghua He,David A. Cullen,Evan C. Wegener,A. Jeremy Kropf,Ulises Martinez,Yingwen Cheng,Mark H. Engelhard,Mark E. Bowden,Miao Song,Teresa Lemmon,Xiaohong S. Li,Zimin Nie,Jian Liu,Deborah J. Myers,Piotr Zelenay,Guofeng Wang,Gang Wu,Vijay Ramani,Yuyan Shao +21 more
TL;DR: In this paper, an atomically dispersed Co and N co-doped carbon (CoN4C12) catalyst with porphyrin-like sites is reported with an improved activity and durability in PEM fuel cell conditions.
Journal ArticleDOI
A pyridinic Fe-N 4 macrocycle models the active sites in Fe/N-doped carbon electrocatalysts.
Travis Marshall-Roth,Nicole J. Libretto,Alexandra T. Wrobel,Kevin J. Anderton,Michael L. Pegis,Nathan D. Ricke,Troy Van Voorhis,Jeffrey T. Miller,Jeffrey T. Miller,Yogesh Surendranath +9 more
TL;DR: The aggregate spectroscopic and electrochemical data demonstrate that (phen2N2)Fe is a more effective model of Fe-N-C active sites relative to the pyrrolic iron macrocycles, thereby establishing a new molecular platform that can aid understanding of this important class of catalytic materials.
Journal ArticleDOI
Supported transition metal phosphides: Activity survey for HER, ORR, OER and corrosion resistance in acid and alkaline electrolytes
TL;DR: Carbon-supported MxPy (M = Ni, Co, W, Cr, and Mo) was prepared via pyrolysis using a very simple and scalable method utilizing nontoxic metal and phosphorus precursors.
References
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Book
Electrochemical Methods: Fundamentals and Applications
Allen J. Bard,Larry R. Faulkner +1 more
TL;DR: In this paper, the authors present a comprehensive overview of electrode processes and their application in the field of chemical simulation, including potential sweep and potential sweep methods, coupled homogeneous chemical reactions, double-layer structure and adsorption.
Journal ArticleDOI
Activity benchmarks and requirements for Pt, Pt-alloy, and non-Pt oxygen reduction catalysts for PEMFCs
TL;DR: In this article, the authors quantified the activities and voltage loss modes for state-of-the-art MEAs (membrane electrode assemblies), specifies performance goals needed for automotive application, and provides benchmark oxygen reduction activities for state of the art platinum electrocatalysts.
Journal ArticleDOI
State of Understanding of Nafion
TL;DR: Light scattering experiments revealed that the radius of gyration had a linear dependence on the molar mass of the aggregates, which suggests that the particles are in the form of rods or ribbons, or at least some elongated structure.
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Handbook of fuel cells : fundamentals technology and applications
TL;DR: In this article, the authors present a survey of fuel cell technologies and applications, focusing on hydrogen storage, hydrogen generation, and other energy conversion related topics, as well as their applications.
Book
X-Ray Diffraction: A Practical Approach
C. Suryanarayana,M. Grant Norton +1 more
TL;DR: In this article, X-Rays and Diffraction Lattices and Crystal Structures and Hexagonal Structures are used for X-Ray Diffraction Experimental Modules: Crystal structure determination, I: Cubic Structures Crystal Structure Determination, II: Hexagonal structures Precise Lattice Parameter Measurements Phase Diagram Determination Detection of Long-Range Ordering Determination of Crystallite Size and Lattite Strain Quantitative Analysis of Powder Mixtures Identification of an Unknown Specimen: Appendices: Plane-Spacing Equations and Unit
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