Results 101 to 110 of about 63,913 (348)
Hydrogen-oxygen proton-exchange membrane fuel cells and electrolyzers [PDF]
Hydrogen-oxygen solid polymer electrolyte (SPE) fuel cells and SPE electrolyzers (products of Hamilton Standard) both use a Proton-Exchange Membrane (PEM) as the sole electrolyte. These solid electrolyte devices have been under continuous development for
Baldwin, R. +4 more
core +1 more source
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 +8 more
wiley +1 more source
Fuel Cells: A Real Option for Unmanned Aerial Vehicles Propulsion
The Scientific World Journal, 2014 The possibility of implementing fuel cell technology in Unmanned Aerial Vehicle (UAV) propulsion systems is considered. Potential advantages of the Proton Exchange Membrane or Polymer Electrolyte Membrane (PEMFC) and Direct Methanol Fuel Cells (DMFC ...
Óscar González-Espasandín +2 more
doaj +1 more source
Physiochemical Characteristics of Solid Electrolyte Membranes for High-Temperature PEM Fuel Cell
International Journal of Electrochemical Science, 2019 Proton exchange membrane fuel cell (PEMFC) is one of the most promising clean energy conversion devices, whereas polybenzimidazole (PBI) polymer consider the potential electrolyte membrane for high temperature.
M.A. Haque +5 more
doaj +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 +10 more
wiley +1 more source
A Comparison of Fick and Maxwell-Stefan Diffusion Formulations in PEMFC Cathode Gas Diffusion Layers [PDF]
, 2013 This paper explores the mathematical formulations of Fick and Maxwell-Stefan diffusion in the context of polymer electrolyte membrane fuel cell cathode gas diffusion layers.
Lindstrom, Michael, Wetton, Brian
core
Through-plane water distribution in a polymer electrolyte fuel cell: Comparison of numerical prediction with neutron radiography data [PDF]
, 2010 A multidimensional mathematical model is presented for simulating the coupled phenomena of gaseous fuel/reactant flows, species (including liquid water) transport, heat transfer, hydrogen oxidation, and oxygen reduction reactions in a polymer electrolyte
Chen, KS, Wang, Y
core +1 more source
Advanced Functional Materials, EarlyView.A new class of living liquid metal composites is introduced, embedding Bacillus subtilis endospores into eutectic gallium–indium (EGaIn). The spores enhance droplet coalescence, strengthen interfacial conductivity, and provide on‐demand electrogenic functionality after germination. The composites exhibit high conductivity, self‐healing, patternability,
Maryam Rezaie, Yang Gao, Seokheun Choi
wiley +1 more source
Materials Science for Energy Technologies, 2018 High temperature proton exchange membrane fuel cells require an electrolyte membrane which is mechanically and thermally more stable for its efficient performance.
Vijayakumar Elumalai +3 more
doaj +1 more source
Extensive Review of Materials for Next‐Generation Transparent Batteries and Their Design Strategies
Advanced Functional Materials, EarlyView.Review explores emerging materials and design strategies for transparent batteries, examining electrodes, electrolytes, separators, and device architectures optimized for high electrochemical performance, mechanical flexibility, and optical transparency.
Atul Kumar Mishra +5 more
wiley +1 more source