Results 81 to 90 of about 2,959,318 (277)

Proton Exchange Membrane Fuel Cell Working at Elevated Temperature with Ionic Liquid as Electrolyte

International Journal of Electrochemical Science, 2011
Ionic liquid (IL) of 1-ethyl-3-methylimidazolium hydrogen sulfate ([Emim]HSO4) free of halide was prepared. The IL was absorbed on a piece of porous asbestos film and used as the electrolyte to fabricate a fuel cell, which was tested in the temperatures ...
Jian Gao, Jianguo Liu, Wenming Liu, Bo li, Yuchen Xin, Ying Yin, Jungu, Zhigang Zou   +6 more
doaj   +1 more source

Bacterial Cellulose‐Based Bilayer Passive Cooler for High‐Performance Radiative/Evaporative Cooling

Advanced Functional Materials, EarlyView.
A sustainable bilayer passive cooler based on bacterial cellulose integrates radiative and evaporative cooling for efficient zero‐energy temperature reduction. The scalable, low‐carbon material shows strong potential for food preservation, low‐temperature storage, and cold‐chain logistics.
Yibing Zhang, Da‐Wen Sun, Liang Xu, You Tian, Libin Sun, Rui Hu, Shiwei Zheng   +6 more
wiley   +1 more source

Water management and conductivity studies in novel polymer zirconium-based membranes for PEM fuel cells

Case Studies in Chemical and Environmental Engineering
Proton exchange membrane fuel cells (PEMFCs) are among the promising alternatives for clean energy generation, especially when hydrogen is the fuel used. Their operation is still faced with several challenges, and one of them is water accumulation in the
Tallah Magdi Ahmed, Amani Al Othman, Abdulrahim Shamayleh, Muhammad Tawalbeh   +3 more
doaj   +1 more source

Water Organization and Hydration‐Dependent Hydroxide Transport in Anion Exchange Membranes (AEM)

Advanced Functional Materials, EarlyView.
Hydroxide transport in anion exchange membranes is governed by the organization of water within the polymer rather than by hydration alone. A hydration‐window framework is presented to unify transport, swelling, and mechanical stability, providing guidance for designing durable membranes for fuel cells and other hydroxide‐based electrochemical ...
Phumlani F. Msomi
wiley   +1 more source

Electrochemical Pathways for Nitrate Conversion to Ammonia: From Environmental Challenges to Ammonia Economy

Advanced Functional Materials, EarlyView.
This perspective presents recent advances in electrocatalytic nitrate reduction, focusing on reaction mechanisms, catalyst design, and electrolyzer configurations. Key challenges in selectivity, stability, and practical wastewater treatment are highlighted, while future directions for advancing sustainable ammonia synthesis and nitrate remediation are ...
Xintong Li, Yunpeng Zuo, Xiaoran Zhang, Jieqiong Shan, Kenneth Mei Yee Leung, Bin Liu, Peter Strasser, Adrian Fisher, Zonglong Zhu, Xin Wang   +9 more
wiley   +1 more source

Liquid Molding Innovation: Membrane-Based RTM and VIP Processing

, 2004
The University of Delaware Center for Composite Materials (UD-CCM) has discovered a Liquid Composite Molding (LCM) technique (patent pending) that significantly reduces resin waste while greatly improving robustness and part quality for Resin ...
Center for Composite Materials
core  

Proton-Exchanged Graphite oxide-incorporated CsXH3-XPMo12O40 with High Conductivity at Intermediate Temperatures

International Journal of Electrochemical Science, 2017
Proton conductors operating at a high temperature condition have attracted great attention for intermediate temperature proton exchange membrane fuel cells (PEMFCs).
Min Huang, Xin Huang, Mingming Fei, Jian Sun, Yuming Deng, Chenxi Xu, Jigui Cheng   +6 more
doaj   +1 more source

CO2‐to‐CO Conversion in a Gas‐Fed, Zero‐Gap, PEM Electrolyzer Enabled by Polycations and Nitrogen‐Doped Carbon‐Supported Cobalt Nanoparticles

Advanced Functional Materials, EarlyView.
A gas‐fed, zero‐gap, PEM CO2 electrolyzer is realized by incorporating PDDA+ ions onto the carbonaceous Co/N‐C electrocatalyst, with gaseous H2 and CO2 fed into the anode and cathode, respectively. Operating without an aqueous electrolyte, the system sustains a peak FECO of 65.1% at 100 mA cm−2. ABSTRACT Electrochemical carbon dioxide reduction (ECO2R)
Yuen Leong Chow, Hsi‐Wen Wu, Aimin Li, Yalou Guo, Duhong Chen, Jie Zhang, Paul A. Webley   +6 more
wiley   +1 more source

Decoupling Electronic-Ionic Transport and Catalysis Enables High-Performance, Chemically Stable Sr-Free Air Electrodes for High-Temperature Solid Oxide Cells. [PDF]

Adv Sci (Weinh)
A Sr‐free air electrode for high‐temperature solid oxide cells is designed by independently tailoring electronic conduction, ionic transport, and surface catalysis using complementary Sr‐free phases and infiltrated nanocatalysts. It delivers performance comparable to state‐of‐the‐art Sr‐containing electrodes while completely suppressing Cr‐induced ...
Won JE, Lee W, Seo J, Yoon D, Ji HI, Kang H, Kim JH, Kim H, Kim JW, Hong J, Yoon KJ.   +10 more
europepmc   +2 more sources

ATP‐Mediated Bidirectional Communication Between Natural and Artificial Cells for Controlled Bioreactions

Advanced Functional Materials, EarlyView.
Establishment of bidirectional communication behavior between natural and artificial cells. The first type of communication from natural dendritic cells to artificial polymeric cells was achieved via ATP release after cell lysis. The released ATP was taken up via gated UV‐controlled permeability increase of the polymeric membrane for performing ...
Ilona Kalte, Tsvetomir Ivanov, Leonhard Seufert, Shoupeng Cao, Lucas Caire da Silva, Volker Mailänder, Katharina Landfester   +6 more
wiley   +1 more source