Results 121 to 130 of about 28,179 (226)

Study of a micro-structured PHE for the thermal management of a fuel cell [PDF]

open access: yes, 2011
This paper was presented at the 3rd Micro and Nano Flows Conference (MNF2011), which was held at the Makedonia Palace Hotel, Thessaloniki in Greece.
3rd Micro and Nano Flows Conference (MNF2011)   +3 more
core  

Effects of Pyrolysis Control Parameters on the Structural Properties of Biomass‐Derived Activated Carbon Materials and Their Energy Applications

open access: yesThe Chemical Record, EarlyView.
Tubular pyrolysis synthesis is a widespread method to produce activated carbons (ACs). This review focuses on the different controlling parameters of the tubular pyrolysis synthesis method and their influence on the performance of synthesized ACs, thereby considering both experimental aspects and the use of plant‐based biomasses (PBBs) as feedstock ...
Meenal Gupta   +6 more
wiley   +1 more source

Thermally Robust 1D Cu(I) Phosphonate Coordination Polymer Exhibiting Enhanced Proton Conductivity via Humidity‐Driven Pathways

open access: yesZeitschrift für anorganische und allgemeine Chemie, EarlyView.
The new 1D Cu(I) coordination polymer BAM‐5 shows outstanding thermal stability and strong humidity‐dependent proton conductivity. Its proton transport is enabled by uncoordinated acidic groups and a well‐developed hydrogen‐bonded network that supports both hopping and vehicular mechanisms.
Alina Schmalz   +4 more
wiley   +1 more source

Research progress in composite graphite bipolar plate materials and properties

open access: yesCailiao gongcheng
Bipolar plates play a role in electron transfer, gas distribution, water management, supporting membrane electrode assembly in the proton exchange membrane fuel cell (PEMFC) and is also a key component to ensure low cost of fuel cell stack. In this paper,
LI Tuanfeng   +8 more
doaj   +1 more source

Anisotropically Wettable Porous Transport Layers for Gas Management in Water Electrolyzers

open access: yesAdvanced Science, Volume 13, Issue 8, 9 February 2026.
Synergistic wetting, achieved by integrating hydrophilic and hydrophobic domains, enhances mass transport in porous transport layers. In situ visualization reveals that dual‐phase wetting suppresses gas accumulation and promotes continuous bubble release, enabling stable, bubble‐free electrolysis within membrane electrode assemblies.
Yunseok Kang   +8 more
wiley   +1 more source

Revealing Robust Atomic Configurations of the Ligand‐Assisted Synthesized High‐Entropy PtIrFeCoNiCu Nano‐Intermetallic Catalysts During Oxygen Reductions in Fuel Cells

open access: yesAdvanced Science, Volume 13, Issue 7, 3 February 2026.
A facile ligand‐assisted strategy is developed to synthesize nanosized high‐entropy PtIr‐iHEA/C intermetallic catalyst (∼4.8 nm, 90% ordered). Structural analysis during oxygen reduction reveals its surface reconstructions, leading to a core–shell atomic configuration (PtIr‐iHEA@Pt) that originates the superior durability.
Yuting Jiang   +5 more
wiley   +1 more source

First principles studies of the size and shape effects on reactivity of the Se modified Ru nanoparticles

open access: yes, 2012
We present here the results of our density-functional-theory-based calculations of the electronic and geometric structures and energetics of Se and O adsorption on Ru 93- and 105-atom nanoparticles. These studies have been inspired by the fact that Se/Ru
Stolbov, Sergey, Zuluaga, Sebastian
core   +1 more source

Recent Advances in Tailoring Active Site Microenvironments of Fe–N–C Catalysts for Oxygen Reduction

open access: yesChemistryEurope, Volume 4, Issue 2, February 2026.
This review summarizes the main factors affecting Fe–N–C catalysts for ORR: activity depends on active site structure, electronic configuration, and porosity, while stability is limited by metal leaching, carbon degradation, and inactive phase formation.
Mudassar Maqsood   +6 more
wiley   +1 more source

Fuel cells : state of the art [PDF]

open access: yes, 2009
Publication CIMNEThis report pretends to explain the state of the art of fuel cells and the applications focused on aviation, such as unmanned aerial vehicles (UAV).
Jarauta Arabí, Àlex, Pons Prats, Jordi
core   +1 more source

The Influence of Heat Input Ratio on Electrical Power Output of a Dual-Core Travelling-Wave Thermoacoustic Engine [PDF]

open access: yes
This paper presents an analytical and experimental investigation of an electricity generator that employs a two-stage looped tube travellin -wave thermoacoustic prime-mover to deliver acoustic power from heat energy, a loudspeaker to extract electricity ...
Hann, D.   +3 more
core  

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