Results 121 to 130 of about 9,395 (252)

Enhanced Control of Polymer Electrolyte Membrane Fuel Cell Fed Basic Series Positive Super Voltage Lift Luo Converter Using Interval Type-2 Fuzzy Logic

Gazi Üniversitesi Fen Bilimleri Dergisi
An eco-friendly and renewable energy source, Polymer Electrolyte Membrane (PEM) fuel cells offer various advantages such as stability and efficiency. The present study aims to control output voltage of PEM fed basic series positive super voltage lift luo
Ahmet Gani , İlknur Uçar
doaj   +1 more source

Experimental study and simulations of hydrogen cooling effectiveness for aviation PEM fuel cells. [PDF]

Sci Rep, 2023
Kösters TL, von Schweinitz AG, Heere M, Friedrichs J, Gao X.   +4 more
europepmc   +1 more source

Linking Synthetic Materials Chemistry to Electrocatalytic Performance

Angewandte Chemie International Edition, Volume 65, Issue 26, 22 June 2026.
Synthetic materials chemistry governs electrocatalyst performance through precise control of phase, composition, defects, and morphology, while emerging operando techniques, data‐driven approaches, and automated laboratories are advancing the field toward predictive catalyst design for sustainable energy conversion.
Debabrata Bagchi, J. Niklas Hausmann, Tobias Sontheimer, Prashanth W. Menezes   +3 more
wiley   +1 more source

Mathematical modelling of the catalyst layer of a polymer-electrolyte fuel cell

, 2007
In this paper we derive a mathematical model for the cathode catalyst layer of a polymer electrolyte fuel cell. The model explicitly incorporates the restriction placed on oxygen in reaching the reaction sites, capturing the experimentally observed fall ...
Shah, A., Promislow, K., Kim, G.S.
core  

Study on water and oxygen transfer characteristics of HT-PEM fuel cells. [PDF]

Heliyon, 2023
He H, Peng H, Li G.
europepmc   +1 more source

Monitoring Hydrogen Crossover Through Commercial Separators via a Facile In Situ Electrochemical Detection Method

ChemElectroChem, Volume 13, Issue 12, 17 June 2026.
A fast, low‐cost electrochemical method to monitor hydrogen crossover in lab‐scale, ambient‐pressure electrolysis cells is presented. Using a four‐electrode setup and combining voltammetry and chronoamperometry, six commercial separators are compared in three different electrolytes, reliably distinguishing those with high hydrogen impermeability ...
Tongsheng Bi, Bram Wonink, Isaac Vázquez, Faiz Sultan, Arne Hommes, Sven Kerzenmacher, Óscar Santiago, Dulce M. Morales   +7 more
wiley   +1 more source

An open-source zero-gradient cell hardware to improve and accelerate durability testing of PEM fuel cells. [PDF]

HardwareX, 2023
Colombo E, Casadei D, Baricci A, Casalegno A.   +3 more
europepmc   +1 more source

Dynamic Oxygen Species Evolution Boosts Acidic Water Oxidation on W‐Doped RuO2

ChemElectroChem, Volume 13, Issue 12, 17 June 2026.
Dynamic oxygen species evolution is triggered in tungsten‐doped RuO2 through regulated lattice oxygen diffusion kinetics during acidic oxygen evolution. An optimized oxygen diffusion coefficient balances lattice oxygen participation and vacancy replenishment, driving the transformation from defective low‐coordination sites into a stable six‐coordinated
Bichen Yuan, Ronghe Yang, Kiros Haile Hagos, Shitao Min, Mingyuan Yang, Yuxuan Guo, Xiaoxing Liang, Xiaoming Sun, Fengmei Wang   +8 more
wiley   +1 more source

Accurate emulation of steady-state and dynamic performances of PEM fuel cells using simplified models. [PDF]

Sci Rep, 2023
Ashraf H, Elkholy MM, Abdellatif SO, El-Fergany AA.   +3 more
europepmc   +1 more source

Multimethod Microstructural Diagnostics of Polymer Electrolyte Membrane Water Electrolysis Cell Components Uncovering Diverging Degradation Pathways After Short‐Term Testing

ChemElectroChem, Volume 13, Issue 12, 17 June 2026.
This study probes why polymer electrolyte membrane electrolyzers lose efficiency under different operating profiles. Using electrical tests, microscopy, and spectroscopy, Ti‐PTL passivation is established as the dominant cause for increased Ohmic resistance in samples aged under constant and triangular current profiles for 88 h.
Annik Bernhardt, Fabian Pascher, Robert Göckeritz, Angelika Hähnel, Alexander Müller, Erik Grunwald, Tobias Albrecht, Thomas Ackermann, Finn Ostermeyer, Wolfram Münchgesang, Michael Bron, Kerstin Witte‐Bodnar, Volker Naumann, Klemens Ilse   +13 more
wiley   +1 more source