Results 21 to 30 of about 5,522 (170)

Investigation on the performance of reversible polymer electrolyte membrane fuel cell during the electrolysis phase [PDF]

EPJ Web of Conferences
Due to its sustainable and zero-carbon potential, electrolysis of water is considered a suitable alternative for the production of green hydrogen. The electrolysis accounts for 2 to 5% of hydrogen production worldwide. The primary objective of this study
Kumar Dinesh, Kumar Hemant, Singh Oberoi Amandeep   +2 more
doaj   +1 more source

Mass Spectrometry of Polymer Electrolyte Membrane Fuel Cells [PDF]

Journal of Analytical Methods in Chemistry, 2016
The chemical analysis of processes inside fuel cells under operating conditions in either direct or inverted (electrolysis) mode and their correlation with potentiostatic measurements is a crucial part of understanding fuel cell electrochemistry. We present a relatively simple yet powerful experimental setup for online monitoring of the fuel cell ...
Viktor Johánek, Anna Ostroverkh, Roman Fiala, Andrii Rednyk, Vladimír Matolín   +4 more
openaire   +3 more sources

Fabrication and Electrolyte Characterizations of Nanofiber Framework-Based Polymer Composite Membranes with Continuous Proton Conductive Pathways

Membranes, 2021
For future fuel cell operations under high temperature and low- or non-humidified conditions, high-performance polymer electrolyte membranes possessing high proton conductivity at low relative humidity as well as suitable gas barrier property and ...
Takeru Wakiya, Manabu Tanaka, Hiroyoshi Kawakami   +2 more
doaj   +1 more source

Sulfonated PVA / PBI Based Crosslinked Composites Towards Anhydrous Proton Conductive Polymer Electrolyte Membranes for Fuel Cells

International Journal of Electrochemical Science, 2012
Polymer electrolyte membrane fuel cells (PEMFCs) are being considered as highly promising future energy source due to their high-energy conversion efficiency and their ability to address the environmental concerns related to current energy production ...
Arfat Anis, S.M. Al-Zahrani
doaj   +1 more source

Electrocatalytic asymmetric hydrogenation of α,β-unsaturated acids in a PEM reactor with cinchona-modified palladium catalysts

Electrochemistry Communications, 2020
We have developed an electrocatalytic asymmetric hydrogenation reaction using a proton-exchange membrane (PEM) reactor that employs a polymer electrolyte fuel cell and industrial electrolysis technologies.
Atsushi Fukazawa, Kenta Tanaka, Yasushi Hashimoto, Yasushi Sato, Mahito Atobe   +4 more
doaj   +1 more source

Lifetime Prediction of a Polymer Electrolyte Membrane Fuel Cell under Automotive Load Cycling Using a Physically-Based Catalyst Degradation Model

Energies, 2018
One of the bottlenecks hindering the usage of polymer electrolyte membrane fuel cell technology in automotive applications is the highly load-sensitive degradation of the cell components.
Manik Mayur, Mathias Gerard, Pascal Schott, Wolfgang G. Bessler   +3 more
doaj   +1 more source

A highly sensitive breathable fuel cell gas sensor with nanocomposite solid electrolyte

InfoMat, 2019
The present work deals with a poly(vinyl alcohol)‐based membrane mixed with poly(4‐styrenesulfonic acid) to be used as a proton‐conducting solid‐state electrolyte in an electrochemical gas sensor for the detection of alcohol. A cross‐linking bonding semi‐
Jing Zhang, Gaopeng Jiang, Timothy Cumberland, Pan Xu, Yalin Wu, Stephen Delaat, Aiping Yu, Zhongwei Chen   +7 more
doaj   +1 more source

Bias‐Free Highly Efficient and Stable Dye‐Sensitized Photoelectrochemical Cells via Cascade Charge Transfer

Advanced Functional Materials, EarlyView.
A buried‐junction DSPEC design is introduced that leverages cascade charge transfer to enhance efficiency, stability, and versatility. This approach facilitates effective charge transfer and minimizes recombination losses, leading to significant improvements.
Jun‐Hyeok Park, Kyounglim Kim, Jinyoung Lee, Sarang Kim, Gwangsu Yoon, So Yeon Yoon, Jeong Kyeong Lee, Ji‐Wook Jang, Tae‐Hyuk Kwon   +8 more
wiley   +1 more source

Ionomer migration within PEMFC catalyst layers induced by humidity changes

Electrochemistry Communications, 2019
The degradation of the membrane electrode assembly, originating from microstructural changes in the catalyst layer, inhibits the commercialization of polymer electrolyte membrane fuel cell.
Yan Yin, Ruitao Li, Fuqiang Bai, Weikang Zhu, Yanzhou Qin, Yafei Chang, Junfeng Zhang, Michael D. Guiver   +7 more
doaj   +1 more source

Electroactive Metal–Organic Frameworks for Electrocatalysis

Advanced Functional Materials, EarlyView.
Electrocatalysis is crucial in sustainable energy conversion as it enables efficient chemical transformations. The review discusses how metal–organic frameworks can revolutionize this field by offering tailorable structures and active site tunability, enabling efficient and selective electrocatalytic processes.
Irena Senkovska, Yutong Luo, Ruyan Zhao, Jianjun Zhang, Mingchao Wang, Xinliang Feng, Eike Brunner, Stefan Kaskel   +7 more
wiley   +1 more source