Results 101 to 110 of about 28,491 (215)

Breaking the ORR Trade‐Off via Mg‐Steered Fe‐N4 Pyridinic Conversion

Small, Volume 22, Issue 19, 1 April 2026.
A Mg‐assisted sacrificial templating strategy is developed to selectively regulate the coordination environment of Fe–N4 sites. This approach induces an active site conversion from S1 to S2, enabling enhancement of oxygen reduction activity and durability. ABSTRACT Single‐atom Fe sites coordinated by pyrrolic nitrogen (Fe‐Npyrr‐C) are highly active for
Si‐Qi Sun, Ya‐Peng Cheng, Hai‐Ning Zhang, Jia‐Min Lyu, Xiao‐Yun Li, Ke Lyu, Ming‐Hui Sun, Shen Yu, Wen‐Mao Tu, Andreu Cabot, Li‐Hua Chen   +10 more
wiley   +1 more source

Hybridization Effects of Carbon Fillers on the Electrical, Thermal, and Mechanical Performances of PVDF‐Based Composites

Journal of Applied Polymer Science, Volume 143, Issue 12, March 20, 2026.
Enhanced conductive graphite, carbon black and carbon fibers domains in PVDF‐based composites. ABSTRACT This study explores the synergistic effects of hybrid graphite (GR) fillers combined with carbon fibers (CFs) and carbon black (CB) on the performance of PVDF‐based conductive polymer composites (CPCs).
Sarra Khairi, Ehsan Rostami‐Tapeh‐Esmaeil, Frej Mighri, Saïd Elkoun, Martin Brassard, Elaheh Oliaii, Philippe Pelletier, Guy Jourdain, Yves Bonnefoy   +8 more
wiley   +1 more source

State Estimation and Fault Diagnosis of Proton Exchange Membrane Fuel Cells Based on Artificial Intelligence

发电技术
ObjectivesThe proton exchange membrane fuel cell (PEMFC), as a highly promising clean energy technology, has attracted much attention in the field of energy conversion.
ZHENG Ruyi, YANG Bo, ZHOU Shuai, JIANG Lin, LI Hongbiao, GAO Dengke   +5 more
doaj   +1 more source

Precision parameter estimation in Proton Exchange Membrane Fuel Cells using depth information enhanced Differential Evolution

Scientific Reports
Proton Exchange Membrane Fuel Cell (PEMFC) models require parameter tuning for their design and performance improvement. In this study, Depth Information-Based Differential Evolution (Di-DE) algorithm, a novel and efficient metaheuristic approach, is ...
Pradeep Jangir, Absalom E. Ezugwu, Arpita, Sunilkumar P. Agrawal, Sundaram B. Pandya, Anil Parmar, G. Gulothungan, Laith Abualigah   +7 more
doaj   +1 more source

Achilles’ heel of single atom catalysts towards practical PEMFC application: Degradation mechanisms and regulatory strategies

Nano Research Energy
Proton exchange membrane fuel cell (PEMFC) is deemed as an efficient and eco-friendly technology with high energy conversion rate and low start-up temperature.
Han Guo, Peng Zhang, Siying Huang, Min Li, Guangxun Sun, Jiaye Li, Yan Lin, Bin Liu, Yuan Pan   +8 more
doaj   +1 more source

An Effective Energy Management Strategy Based on Mine-Blast Optimization Technique Applied to Hybrid PEMFC/Supercapacitor/Batteries System

Energies, 2019
An effective energy management strategy based on the mine-blast optimization (MBA) technique was proposed in this paper to optimally manage the energy in a hybrid power system. The hybrid system was composed of fuel cells, batteries, and supercapacitors.
Ahmed M. Nassef, Ahmed Fathy, Hegazy Rezk   +2 more
doaj   +1 more source

Innovative Diversity Metrics in Hierarchical Population‐Based Differential Evolution for PEM Fuel Cell Parameter Optimization

Engineering Reports
The optimization of parameters in proton exchange membrane fuel cell (PEMFC) models is essential for enhancing the design and control of fuel cells and is currently a vibrant area of research.
Mohammad Khishe, Pradeep Jangir, Arpita, Sunilkumar P. Agrawal, Sundaram B. Pandya, Anil Parmar, Laith Abualigah   +6 more
doaj   +1 more source

PEMFC Semi-Empirical Model Improvement by Reconstructing Concentration Loss

Energies
The performance of proton exchange membrane fuel cells (PEMFCs) is greatly affected by their operating parameters, especially at high current densities.
Qinwen Yang, Xuan Liu, Gang Xiao, Zhen Zhang   +3 more
doaj   +1 more source

Numerical Investigation of Liquid Water Transport Dynamics in Novel Hybrid Sinusoidal Flow Channel Designs for PEMFC

Energies, 2019
This study numerically investigates liquid water dynamics in a novel hybrid sinusoidal flow channel of a proton exchange membrane fuel cell (PEMFC). The two-phase flow is examined using a three-dimensional, transient computational fluid dynamics (CFD ...
Ikechukwu S. Anyanwu, Yuze Hou, Wenmiao Chen, Fengwen Pan, Qing Du, Jin Xuan, Kui Jiao   +6 more
doaj   +1 more source

Development and characterization of sulfonated polysulfone membrane for proton exchange membrane fuel cell (PEMFC) [PDF]

, 2004
Sulfonated polysulfone membranes with varying degree of sulfonation have been successfully synthesized by electrophilic substitution via sulfonation process in this study.
Naim, Rosmawati
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