Results 101 to 110 of about 51,688 (302)

Ion-exchange membrane with platinum electrode assembly Patent [PDF]

, 1968
Development and characteristics of ion-exchange membrane and electrode assembly for fuel cells or electrolysis ...
Jamison, H. H., MCBRYAR
core   +1 more source

High‐Yield Synthesis of Fe‐NC Electrocatalysts Using Mg2+ Templating and Schiff‐Base Porous Organic Polymers

Advanced Functional Materials, EarlyView.
Fe─NC porous oxygen reduction electrocatalysts are prepared employing a 2,4,6‐Triaminopyrimidine‐based porous organic polymer, a Mg2+ Lewis acid, and a low‐temperature cation exchange protocol. Using the polymer precursor achieves high pyrolysis yields and results in atomically dispersed FeNx sites. The resulting catalysts feature hierarchical porosity
Eliot Petitdemange, Jinjie Zhu, Angus Pedersen, Joseph Parker, S. Esmael Balaghi, Shaohua Li, Silvia Favero, José Ignacio Martínez, Sarah Haigh, Maria‐Magdalena Titirici, Anna Fischer, Jesús Barrio   +11 more
wiley   +1 more source

Tuning the Electronic Structure and Spin State of Fe─N─C Catalysts Using an Axial Oxygen Ligand and Fe Clusters for High‐Efficiency Rechargeable Zinc–Air Batteries

Advanced Functional Materials, EarlyView.
A FeN4─O/Clu@NC‐0.1Ac catalyst containing atomically‐dispersed FeN4─O sites (medium‐spin Fe2+) and Fe clusters delivered a half‐wave potential of 0.89 V for ORR and an overpotential of 330 mV at 10 mA cm−2 for OER in 0.1 m KOH. When the catalyst was used in a rechargeable Zn–air battery, a power density of 284.5 mW cm−2 was achieved with excellent ...
Yongfang Zhou, Yu Mao, Mengyao Chang, Ziyun Wang, Wenke Xie, Cuizhu Ye, Shanghai Wei, Lars Thomsen, Geoffrey I. N. Waterhouse   +8 more
wiley   +1 more source

A High Temperature Polymer Electrolyte Membrane Fuel Cell Model for Reformate Gas

International Journal of Electrochemistry, 2011
A one-dimensional model of a high temperature polymer electrolyte membrane fuel cell using polybenzimidazole (PBI) membranes is described. The model considers mass transport through a thin film electrolyte covering the catalyst particles as well as ...
M. Mamlouk, Tiago Sousa, Keith Scott
doaj   +1 more source

Influence of Changes in the Shape of the Anode Channel in Polymer Electrolyte Fuel Cell on the Loss of Its Service Life. [PDF]

Materials (Basel), 2021
Sławiński D, Soszko M, Tokarz W, Bykuć S.   +3 more
europepmc   +1 more source

Solid-polymer-electrolyte fuel cells [PDF]

, 1992
A transport model for polymer electrolytes is presented, based on concentrated solution theory and irreversible thermodynamics. Thermodynamic driving forces are developed, transport properties are identified and experiments devised. Transport number of water in Nafion 117 membrane is determined using a concentration cell.
openaire   +1 more source

Powering the Future: A Cobalt‐Based Catalyst for Longer‐Lasting Zinc–Air Batteries

Advanced Functional Materials, EarlyView.
A novel N‐doped graphitic shell‐encapsulated Co catalyst reveals superior bifunctional ORR/OER activity in alkaline media, empowering outstanding liquid and quasi‐solid‐state ZAB activity. The system delivers long‐term durability, a peak power density of 127 mW cm−2 and successfully powers an LED and a mini fan.
Manami Banerjee, Peng Ren, Greesh Kumar, Lucie Lindenbeck, Byoung Joon Park, Anna Rokicińska, Piotr Kuśtrowski, Adam Slabon, Francesco Ciucci, Ramendra Sundar Dey, Shoubhik Das   +10 more
wiley   +1 more source

Liquid Water Visualization in the Pt‐Loading Cathode Catalyst Layers of Polymer Electrolyte Fuel Cells Using Operando Synchrotron X‐ray Radiography

Advanced Energy & Sustainability Research
Water management is important for addressing the challenges posed by next‐generation fuel cell electric vehicles. Although X‐ray imaging techniques are useful for probing the mechanism of water transport in the gas diffusion layer of polymer electrolyte ...
Wataru Yoshimune, Akihiko Kato, Tetsuichiro Hayakawa, Satoshi Yamaguchi, Satoru Kato   +4 more
doaj   +1 more source

Microstructure Investigation of Polymer Electrolyte Fuel Cell Catalyst Layers Containing Perfluorosulfonated Ionomer. [PDF]

Membranes (Basel), 2021
Koga M, Matsumoto H, Kunishima M, Tokita M, Masunaga H, Ohta N, Takeuchi A, Mizukado J, Sugimori H, Shinohara K, Uemura S, Yoshida T, Hirai S.   +12 more
europepmc   +1 more source

Using a dual plasma process to produce cobalt--polypyrrole catalysts for the oxygen reduction reaction in fuel cells -- part I: characterisation of the catalytic activity and surface structure

, 2012
A new dual plasma coating process to produce platinum-free catalysts for the oxygen reduction reaction in a fuel cell is introduced. The catalysts thus produced were analysed with various methods.
Brüser, Volker, Kummer, Kurt, Quade, Antje, Vyalikh, Denis, Walter, Christian, Weltmann, Klaus-Dieter   +5 more
core   +1 more source