Journal ArticleDOI
Platinum-based ternary catalysts for low temperature fuel cells Part I. Preparation methods and structural characteristics
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TLDR
Pt-based ternary catalysts have been proposed as electrode materials for low temperature fuel cells as mentioned in this paper, and they have been tested as anode materials with improved CO tolerance or enhanced activity for methanol or ethanol oxidation.Abstract:
Pt-based ternary catalysts have been proposed as electrode materials for low temperature fuel cells. Pt–Ru-based ternary catalysts were tested as anode materials with improved CO tolerance or enhanced activity for methanol or ethanol oxidation. Ternary catalysts based on platinum alloyed with first row transition metals were tested as cathode materials with improved activity for the oxygen reduction. This paper presents an overview of the preparation methods and structural characteristics of these ternary catalysts.read more
Citations
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Journal ArticleDOI
Platinum-based nanostructured materials: synthesis, properties, and applications.
Aicheng Chen,Peter Holt-Hindle +1 more
Journal ArticleDOI
Nanostructured Pt-alloy electrocatalysts for PEM fuel cell oxygen reduction reaction
TL;DR: This critical review presents the current technological advances in proton exchange membrane (PEM) fuel cell catalysis, with a focus on strategies for developing nanostructured Pt-alloys as electrocatalysts for the oxygen reduction reaction (ORR).
Journal ArticleDOI
Carbon-Supported Pt-Based Alloy Electrocatalysts for the Oxygen Reduction Reaction in Polymer Electrolyte Membrane Fuel Cells: Particle Size, Shape, and Composition Manipulation and Their Impact to Activity
TL;DR: Reduction Reaction in Polymer Electrolyte Membrane Fuel Cells: Particle Size, Shape, and Composition Manipulation and Their Impact to Activity
Journal ArticleDOI
Efficient oxygen reduction fuel cell electrocatalysis on voltammetrically dealloyed Pt-Cu-Co nanoparticles.
TL;DR: The electrocatalytic oxygen reduction reaction on noble metal surfaces is one of the most widely studied reactions in electrochemistry and is based on the fact that the oxygen/water half-cell reaction is a strongly oxidizing and ubiquitous redox couple.
Journal ArticleDOI
Charge-Redistribution-Enhanced Nanocrystalline Ru@IrOx Electrocatalysts for Oxygen Evolution in Acidic Media
Jieqiong Shan,Chunxian Guo,Yihan Zhu,Shuangming Chen,Li Song,Mietek Jaroniec,Yao Zheng,Shi-Zhang Qiao +7 more
TL;DR: In this article, the authors report a rational design strategy for the fabrication of a heterostructured OER electrocatalyst (Ru@IrOx) that has unique physicochemical properties and in which a strong charge redistribution exists between a highly strained ruthenium core and a partially oxidized iridium shell across the metal-metal oxide heterojunction.
References
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Journal ArticleDOI
Origin of the Overpotential for Oxygen Reduction at a Fuel-Cell Cathode
Jens K. Nørskov,Jan Rossmeisl,and Ashildur Logadottir,L. Lindqvist,John R. Kitchin,Thomas Bligaard,Hannes Jónsson +6 more
TL;DR: In this paper, the stability of reaction intermediates of electrochemical processes on the basis of electronic structure calculations was analyzed and a detailed description of the free energy landscape of the electrochemical oxygen reduction reaction over Pt(111) as a function of applied bias was presented.
Book
Modern Aspects of Electrochemistry
TL;DR: In this paper, the authors focus on topics at the forefront of electrochemical research, such as splitting water by electrolysis, splitting water with visible light, and the recent development of lithium batteries.
Journal ArticleDOI
Monodisperse FePt Nanoparticles and Ferromagnetic FePt Nanocrystal Superlattices
TL;DR: Thermal annealing converts the internal particle structure from a chemically disordered face- centered cubic phase to the chemically ordered face-centered tetragonal phase and transforms the nanoparticle superlattices into ferromagnetic nanocrystal assemblies that can support high-density magnetization reversal transitions.
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.