Results 111 to 120 of about 63,913 (348)

Studies on PEM Fuel Cells Using Various Alcohols for Low Power Applications

open access: yesInternational Journal of Electrochemical Science, 2008
The Direct Alcohol Fuel Cell (DAFC) appears to be the most promising replacement for batteries in portable applications such as cellular phones, personal Digital Assistants (PDAs), digital cameras and laptop computers.
J. Arun Kumar, P. Kalyani, R. Saravanan
doaj   +1 more source

The effects of water and microstructure on the performance of polymer electrolyte fuel cells [PDF]

open access: yes, 2006
n this paper, we present a comprehensive non-isothermal, one-dimensional model of the cathode side of a Polymer Electrolyte Fuel Cell. We explicitly include the catalyst layer, gas diffusion layer and the membrane.
A. Young   +59 more
core   +1 more source

Toward Scalable Solutions for Silver‐Based Gas Diffusion Electrode Fabrication for the Electrochemical Conversion of CO2 – A Perspective

open access: yesAdvanced Functional Materials, EarlyView.
In this study, the preparation techniques for silver‐based gas diffusion electrodes used for the electrochemical reduction of carbon dioxide (eCO2R) are systematically reviewed and compared with respect to their scalability. In addition, physics‐based and data‐driven modeling approaches are discussed, and a perspective is given on how modeling can aid ...
Simon Emken   +6 more
wiley   +1 more source

Dual‐Atom Dopants Activated Ruthenium Single‐Atom Alloy Boosting Hydrogen Evolution Electrocatalysis in Proton Exchange Membrane Water Electrolyzer

open access: yesAdvanced Functional Materials, EarlyView.
Ni1‐Bi1 dual‐atom dopants are achieved for activating Ru lattices without blocking noble atoms. This model exhibits an ultralow overpotential of 11.4 mV and superb stability at 10 mA cm−2 toward hydrogen evolution reaction, enabling a proton exchange membrane water electrolyzer that needs only 2.233 V to reach 3.0 A cm−2 and operates stably at 1.0 A cm−
Shuiping Luo   +17 more
wiley   +1 more source

A facile synthesis and assembly of ultrasmall Pt nanoparticles on reduced graphene oxide‑carbon black hybrid for enhanced performance in PEMFC

open access: yesMaterials & Design, 2018
A new and straightforward approach for the synthesis of ultrasmall and monodisperse Pt nanoparticles (NPs) and their controlled assembly on graphene based supports including reduced graphene oxide (rGO), commercial carbon black (VC) and rGO-VC hybrid ...
Melike Sevim Yılmaz   +3 more
doaj   +1 more source

Water in a Polymeric Electrolyte Membrane: Sorption/Desorption and Freezing phenomena

open access: yes, 2013
Nafion is a perfluorosulfonated polymer, widely used in Proton Exchange Membrane Fuel Cells. This polymer adopts a complex structural organisation resulting from the microsegregation between hydrophobic backbones and hydrophilic sulfonic acid groups ...
Bartolini, Paolo   +5 more
core   +3 more sources

Measurement of Three Transport Coefficients and the Thermodynamic Factor in Block Copolymer Electrolytes with Different Morphologies. [PDF]

open access: yes, 2020
The design and engineering of composite materials is one strategy to satisfy the materials needs of systems with multiple orthogonal property requirements.
Balsara, Nitash P   +5 more
core  

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