Results 31 to 40 of about 1,773 (146)
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 +4 more
wiley +1 more source
Advanced Functional Materials, Volume 36, Issue 45, 5 June 2026.Scanning electrochemical microscopy reveals reactant diffusion through porous carbon shells to PtFe cores, while the carbon‐encapsulated PtFe enables high‐performance HT‐PEMFC operation by sieving phosphate ions that induce catalyst poisoning. ABSTRACT High‐temperature polymer electrolyte membrane fuel cells (HT‐PEMFCs) operating at 160°C on phosphoric
Myeong‐Geun Kim +9 more
wiley +1 more source
Degradation Mechanisms in PEM Water Electrolysis: Diagnosis and Impact
Advanced Materials Technologies, Volume 11, Issue 11, 5 June 2026.This review provides an analysis of degradation mechanisms in proton electrolyte membrane water electrolyzers (PEMWE), focusing on all key components. It discusses diagnostic and measurement techniques for evaluating degradation, less‐studied mechanisms, and an expert survey.
Annik Bernhardt +11 more
wiley +1 more source
Fuel Cells, Volume 26, Issue 3, June 2026.ABSTRACT SUS 316L bipolar plates (BPPs) with rectangular micro‐channels for polymer electrolyte membrane fuel cell (PEMFC) were fabricated using powder bed fusion (PBF) technology, and the effects of flow‐field structure parameters (channel width, rib width, and channel depth) on fuel cell performance were analyzed.
Chul Kyu Jin, Sung Hwan Bae, Min Sik Lee
wiley +1 more source
Fuel Cells, Volume 26, Issue 3, June 2026.ABSTRACT Air‐cooled polymer electrolyte membrane fuel cells (PEMFCs) offer structural simplicity and advantages in compact system design; however, nonuniform thermal management induced by fan‐based cooling can lead to hotspot formation, resulting in increased membrane resistance, performance degradation, and reduced durability.
Sanghyun Yun, Jinwon Yun, Jaeyoung Han
wiley +1 more source
Drive Cycle‐Based Accelerated Stress Tests for Heavy Duty Fuel Cell Vehicle Applications
Fuel Cells, Volume 26, Issue 3, June 2026.ABSTRACT Fuel cells in heavy‐duty vehicles are susceptible to degradation and are significantly influenced by driving patterns. Accelerated stress tests (ASTs) are useful to identify these degradation mechanisms and aid the development of degradation‐resistant control strategies for FC stacks.
Gnana Lahari Kothala +3 more
wiley +1 more source
Rare Metals, Volume 45, Issue 6, June 2026.ABSTRACT Catalytic NH3 decomposition has garnered substantial attention for hydrogen transformation and storage. Ni‐based catalysts continue to suffer from limited thermal stability and suboptimal low‐temperature activity, largely attributed to an incomplete understanding of the structure‐activity relationships and reaction mechanisms governing their ...
Tao Wen +8 more
wiley +1 more source
Polymer Composites, Volume 47, Issue 10, Page 9088-9101, 20 May 2026.Schematic of the experimental workflow for evaluating the effect of different graphite fillers on the electrical, thermal, mechanical, and gas‐barrier properties of ultrathin composite foils produced via the Powder‐to‐Roll process. ABSTRACT This study systematically investigates the influence of graphite type, particle shape, and particle size on the ...
Laura Huwald +5 more
wiley +1 more source
Optimization of proton exchange membrane fuel cell design parameters using Tianji's horse racing optimization. [PDF]
Sci RepBouali Y +3 more
europepmc +1 more source
Temperature dependence laser-assist scattering and its impact on efficiency of PEMFC. [PDF]
PLoS OneDhobi SH +4 more
europepmc +1 more source