Potentiostatic and Potential Cycling Dissolution of Polycrystalline Platinum and Platinum Nano-Particle Fuel Cell Catalysts
نویسندگان
چکیده
منابع مشابه
Nano-structured non-platinum catalysts for automotive fuel cell application
Chemical & Biological Engineering Department, Center for Micro-Engineered Materials, University of New Mexico, Albuquerque, NM 87131, United States Zero Emission Research, Fuel cell and Battery Laboratory, Nissan Technical Center North America, Farmington Hills, MI 48331, United States Institut Charles Gerhardt de Montpellier, UMR 5253 CNRS Université de Montpellier, Agrégats, Interfaces et Mat...
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Objectives • Further improve the new catalyst consisting of a submonolayer of Pt on carbon-supported Ru nanoparticles (1%Pt/10%Ru/C) to come close to the DOE’s 2010 target of 100 μg/cm2 noble metal loading. • Further elucidate the inhibition mechanism of CO on H2 oxidation on Pt. • Reduce Ru loadings in Pt-Ru electrocatalysts. • Explore monolayer-level-supported Pt electrocatalysts for O2 reduc...
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One of the most important practical issues in low-temperature fuel-cell catalyst degradation is platinum dissolution. According to the literature, it initiates at 0.6-0.9 VRHE, whereas previous time- and potential-resolved inductively coupled plasma mass spectrometry (ICP-MS) experiments, however, revealed dissolution onset at only 1.05 VRHE. In this manuscript, the apparent discrepancy is addr...
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ژورنال
عنوان ژورنال: Journal of The Electrochemical Society
سال: 2018
ISSN: 0013-4651,1945-7111
DOI: 10.1149/2.0211806jes