Results 91 to 100 of about 2,978 (240)

Accurate emulation of steady-state and dynamic performances of PEM fuel cells using simplified models. [PDF]

Sci Rep, 2023
Ashraf H, Elkholy MM, Abdellatif SO, El-Fergany AA.   +3 more
europepmc   +1 more source

Advances in Design Strategy and Mechanism Insights for Alkaline Hydrogen Evolution Reaction: Multilevel Site Engineering and Structure–Activity Relationship

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This review is about material design based on engineering multilevel sites from theoretical calculation and synthetic routes to mechanism, structure–activity relationship, challenges and perspectives for boosting hydrogen production in alkaline electrolyte. Electrolytic water splitting is a clean, carbon‐free method for producing green hydrogen and has
Ke Zhang, Hongying Luo, Yudong Du, Kehao Yu, Huayu Wu, Shimin Chai, Yanyan Liu, Yongfeng Wang, Jianchun Jiang, Baojun Li   +9 more
wiley   +1 more source

Sustainable Plant-Based Biopolymer Membranes for PEM Fuel Cells. [PDF]

Int J Mol Sci, 2022
Li S, Cai G, Wu S, Raut A, Borges W, Sharma PR, Sharma SK, Hsiao BS, Rafailovich M.   +8 more
europepmc   +1 more source

MXene‐Induced Selective Ion Separation in Capacitive Deionization: Bridging Fundamentals With Frontier Innovations

Electron, EarlyView.
This review presents an in‐depth analysis of employing the MXenes electrodes in advancing ion‐selective capacitive deionization technologies, by exploring various strategies to achieve the desired selectivity. It highlights the critical challenges that hinder scalability and practical implementation. The review showcases the future opportunities toward
Rahat Alam, Linda Zou, Louis C. P. M. de Smet, Constantinos V. Chrysikopoulos   +3 more
wiley   +1 more source

Selecting Between Hydrogen and Methanol for Fuel Cell‐Organic Rankine Cycle Hybrid Power Systems: A Comparative 4E Analysis

Energy Science &Engineering, EarlyView.
A 4E comparison of PEMFC‐ORC and DMFC‐ORC systems shows that PEMFC‐ORC achieves 21% higher energy efficiency, while DMFC‐ORC obtains 31% higher exergy efficiency and 57% lower levelized cost of electricity. However, DMFC‐ORC emits nearly twice the annual carbon dioxide equivalent of PEMFC‐ORC.
Zahra Piryaei, Maryam Karami, Iman Khazaee   +2 more
wiley   +1 more source

Characterization of Commercial Polymer-Carbon Composite Bipolar Plates Used in PEM Fuel Cells. [PDF]

Membranes (Basel), 2022
Hala M, Mališ J, Paidar M, Bouzek K.
europepmc   +1 more source

Defect‐Rich Ir Single‐Atom/NiMnOx Catalyst: From Surface Reconstruction to Practical PEM Electrolysis

Interdisciplinary Materials, EarlyView.
A novel IrSA─NiMnOx composite achieves remarkable oxygen evolution reaction performance in acidic media with an overpotential of 193 mV at 10 mA cm−2 and maintains stability for 800 h at 200 mA cm−2, which is attributed to the atomically dispersed Ir atoms and amorphous NiMnOx carriers and the lattice oxygen oxidation mechanism.
Jingjing Zhang, Qiong Zeng, Meiliang Ma, Yafu Wang, Yan Wang, Huan Ren, Zhaoxian Qin, Qingyi Qian, Zhong‐Kang Han, Jiangwei Zhang, Gao Li   +10 more
wiley   +1 more source

Features of the Degradation of the Proton-Conducting Polymer Nafion in Highly Porous Electrodes of PEM Fuel Cells. [PDF]

Membranes (Basel), 2023
Nechitailov AA, Volovitch P, Glebova NV, Krasnova A.   +3 more
europepmc   +1 more source

Building Sulfone Bridges: Multi‐Technique Analysis of Thermally Induced Cross‐Linking in Highly Sulfonated Poly(Phenylsulfone)

Journal of Polymer Science, EarlyView.
Highly sulfonated poly(phenylsulfone) undergoes controlled thermal cross‐linking through sulfone bridge formation, exploiting the dual role of sulfonic acid groups as both proton‐conducting functionalities and reactive precursors. The resulting fluorine‐free membranes exhibit enhanced hydrolytic, thermal, and mechanical stability while maintaining ...
A. Fahs, J.‐F. Chailan, E. Sgreccia, M. Vagnarelli, L. Pasquini, P. Knauth, M. L. Di Vona   +6 more
wiley   +1 more source

Proton Exchange Membrane Fuel Cells: A Sustainable Approach Towards Energy Generation

Innovation of Chemistry & Materials for Sustainability
Fuel cell technologies are on the verge of creating new milestones in energy conversion devices in the automobile, portable, and transportation sectors. This review article summarizes all types of fuel cells. Proton exchange membrane fuel cells (PEMFCs)
Susanta Banerjee, Bholanath Ghanti
doaj   +1 more source