Results 91 to 100 of about 3,384 (206)

Alternative and facile production pathway towards obtaining high surface area PtCo/C intermetallic catalysts for improved PEM fuel cell performance. [PDF]

RSC Adv, 2023
Heizmann PA, Nguyen H, von Holst M, Fischbach A, Kostelec M, Gonzalez Lopez FJ, Bele M, Pavko L, Đukić T, Šala M, Ruiz-Zepeda F, Klose C, Gatalo M, Hodnik N, Vierrath S, Breitwieser M.   +15 more
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

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

Performance assessment and economic perspectives of integrated PEM fuel cell and PEM electrolyzer for electric power generation. [PDF]

Heliyon, 2021
Escobar-Yonoff R, Maestre-Cambronel D, Charry S, Rincón-Montenegro A, Portnoy I.   +4 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

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

Correction: Nafion film transport properties in a low-Pt PEM fuel cell: impedance spectroscopy study. [PDF]

RSC Adv, 2021
Reshetenko T, Kulikovsky A.
europepmc   +1 more source

Pure Water‐Fed Photoelectrochemical Water Splitting Using a Porous WO3 Electrode Surface‐Modified With Perfluorosulfonic Acid Ionomer

ChemSusChem, Volume 19, Issue 11, 15 June 2026.
This study demonstrates a proton exchange membrane (PEM)‐based photoelectrochemical (PEC) system for pure‐water splitting using a porous tungsten oxide (WO3) photoanode coated with a perfluorosulfonic acid (PFSA) ionomer. Proton transport at the WO3 surface is the rate‐limiting step for oxygen evolution, and the ionomer surface modification is ...
Keisuke Tsushiro, Fumiaki Amano
wiley   +1 more source

Sandwich‐Structured Covalent Organic Framework as a Proton Exchange Membrane

ChemSusChem, Volume 19, Issue 11, 15 June 2026.
A sandwich‐structured covalent organic framework membrane, with a TpSB‐(SO3H)2 layer confined between TpBD‐(SO3H)2 layers, delivers high proton conductivity and markedly reduced humidity dependence. The layered design improves water retention and dimensional stability, enabling superior proton transport under intermediate‐to‐low humidity at 100°C and ...
Minami Kato, Hikaru Sano, Yuta Ito, Takashi Shirahata, Masafumi Asahi   +4 more
wiley   +1 more source

Optimizing catalyst layer composition of PEM fuel cell via machine learning: Insights from in-house experimental data

Energy and AI
The catalyst layer (CL) is a pivotal component of Proton Exchange Membrane (PEM) fuel cells, exerting a significant impact on both performance and durability.
Yuze Hou, Patrick Schneider, Linda Ney, Nada Zamel   +3 more
doaj   +1 more source