Results 121 to 130 of about 327,547 (230)

Voltage-Dependent Optimization of Split-Flow Channels in High-Temperature PEM Fuel Cells: Balancing Ohmic and Concentration Polarization

Energies
High-temperature proton exchange membrane fuel cells (HT-PEMFCs) coupled with methanol reforming hold promise for distributed energy systems, yet channel hydrodynamics and geometry optimization remain underexplored.
Chenliang Guo, Qinglong Yu, Xuanhong Ye, Chenxu Wei, Wei Shen, Chengrui Yang, Chenbo Xia, Shusheng Xiong   +7 more
doaj   +1 more source

Effect of Methanol Crossover in a Liquid-FeedPolymer-Electrolyte Direct Methanol Fuel Cell

, 1996
The performance of a liquid-feed direct methanol fuel cell employing a proton-exchange membrane electrolyte with Pt-Ru/C as anode and Pt/C as cathode is reported. The fuel cell can deliver a power density of ca. 0.2 $W/cm^2$ at 95°C, sufficient to suggest that the stack construction is well worthwhile.Methanol crossover across the polymer electrolyte ...
Ravikumar, MK, Shukla, AK
openaire   +1 more source

Synthesis of Zwitterionic Tris(pyrazolyl) Ligands and Their Mn(II) Bis‐Chelates Exhibiting Charge–Transfer‐Induced Spin Crossover

European Journal of Inorganic Chemistry, Volume 29, Issue 28, 1 October 2026.
In this article, a series of zwitterionic scorpionate ligands based on the anionic tris‐(pyrazolyl)borate ligand scaffold is presented. These ligands are used to prepare bis‐chelates with divalent manganese ions. The resulting complexes are studied via magnetic, crystallographic, and electrochemical means to characterize the charge–transfer‐induced ...
Matthew C. Kessinger, Tzu‐Ching Cheng, Cameron Brillhart, Sreenivasulu Chinnabattigalla, Carla Slebodnick, Amanda J. Morris   +5 more
wiley   +1 more source

Three‐Stage Fluid‐Assisted Dual‐Mode Janus E‐Skin for Thermally Comfortable Multiplexed SERS Sweat Analysis and Strain Monitoring

Rare Metals, Volume 45, Issue 10, October 2026.
ABSTRACT Wearable sweat sensors face persistent trade‐offs between multiplexed detection, signal stability, and wearing comfort. Here, we present a Janus electronic skin (e‐skin) with dual‐mode functionality, offering both thermal and moisture comfort.
Zhi‐Mei Mu, Fan Yang, Jian Tang, Jian‐An Huang, Guo‐An Liu, Bin‐Bin Zhang, Xing‐Shuang Zhang, Meng Wang, Dong‐Wei Li, Chao Zhang, Xiu Liang, Kai‐Chen Xu, Chang‐Zhou Yuan   +12 more
wiley   +1 more source

π‐Extended Silyl Enolates as Emerging Platforms in Radical Chemistry

European Journal of Organic Chemistry, Volume 29, Issue 36, 24 September 2026.
This review covers the emerging role of π‐extended silyl polyenol ethers in radical chemistry. It highlights their versatile roles as electron‐rich SOMOphiles, silyl radical cation precursors, and nucleophilic partners in radical–polar crossover manifolds, while considering recent advances in photoredox catalysis, electrochemistry, and transition metal‐
Debora Guazzetti, Kelly Bugatti, Claudio Curti, Franca Zanardi   +3 more
wiley   +1 more source

Coordinative‐Guest‐Triggered Dimensional Crossover in a Metal–Organic Framework With Rigid Metal–Oxo Rods

Chemistry – A European Journal, Volume 32, Issue 35, 19 September 2026.
We report a reversible structural phase transition in a metal–organic framework (MOF) triggered by the exchange of coordinative guest molecules. This MOF consists of rigid 1D Pb–O rods as building units, forming a 3D framework with 1D pores. Guest exchange induces pronounced changes in both the Pb–O rod structure and the dimensionality of the framework.
Keisuke Ishikawa, Kazuya Otsubo
wiley   +1 more source

Investigation of Factors Influencing Methanol Crossover in Direct Methanol Fuel Cell

Journal of the Korean Electrochemical Society, 2008
Min-Soo Hyun, Sang-Kyung Kim, Seong-Yop Lim, Byung-Rock Lee, Dong-Hyun Peck, Doo-Hwan Jung   +5 more
openaire   +2 more sources

Recent Studies on Methanol Crossover in Liquid-Feed Direct Methanol Fuel Cells

, 2000
In this work, the effects of methanol crossover and airflow rates on the cathode potential of an operating direct methanol fuel cell are explored. Techniques for quantifying methanol crossover in a fuel cell and for separating the electrical performance ...
Narayanan, S. R., Valdez, T. I.
core  

The Effect of Methanol Crossover on the Cathode Overpotential of DMFCs

The Effect of Methanol Crossover on the Cathode Overpotential of DMFCs
identifier:oai:t2r2.star.titech.ac.jp ...
openaire   +1 more source

Crossover Topologico per Permutazioni

, 2005
Gli algoritmi evolutivi sono metodi generali di problemsolving, ampiamente utilizzati e con successo, che imitano in maniera semplificata l'evoluzione biologica.
Topological Crossover For, Riccardo Poli, Alberto Moraglio   +2 more
core