Results 61 to 70 of about 678,821 (367)

Copper‐based Materials for Photo and Electrocatalytic Process: Advancing Renewable Energy and Environmental Applications

Advanced Functional Materials, EarlyView.
Cu‐based catalysts as a cornerstone in advancing sustainable energy technologies are fully reviewed in this manuscript, highlighting their potential in photo‐ and electrocatalysis. It includes metallic copper, copper oxides, copper sulfides, copper halide perovskites, copper‐based metal–organic frameworks (MOFs), and covalent organic frameworks (COFs),
Jéssica C. de Almeida, Yanjie Wang, Thais A. Rodrigues, Paulo H. H. Nunes, Vagner R. de Mendonça, Paulo H. E. Falsetti, Leticia V. Savazi, Tao He, Alexandra V. Bardakova, Aida V. Rudakova, Jie Tian, Alexei V. Emeline, Osmando F. Lopes, Antonio Otavio T. Patrocínio, Jia Hong Pan, Caue Ribeiro, Detlef W. Bahnemann   +16 more
wiley   +1 more source

Enhanced metal-support interaction of nitrogen-doped carbon supported Pt nanoparticles with high activity for electrocatalytic oxygen reduction reaction

Carbon Neutrality
Nitrogen-doping has been proposed as a method to enhance the performance of Pt-based electrocatalysts for the oxygen reduction reaction (ORR) in proton exchange membrane fuel cells (PEMFCs).
Hong Zhang, Huanqiao Li, Xiaoming Zhang, Shansheng Yu, Suli Wang, Gongquan Sun   +5 more
doaj   +1 more source

Rational Fine‐Tuning of MOF Pore Metrics: Enhanced SO2 Capture and Sensing with Optimal Multi‐Site Interactions

Advanced Functional Materials, EarlyView.
A pore tuning strategy to amplify the multi‐site MOF‐SO2 interactions is proposed to achieve an enhanced trace SO2 capture and chemiresistive sensing in highly stable isostructural DMOFs by annelating benzene rings. This work provides a facile strategy to achieve tailor‐made stable MOF materials for specific multifunctional applications.
Shanghua Xing, Abdulrahman Mohabbat, István Boldog, Jens Möllmer, Marcus Lange, Yulyan Haiduk, Tobias Heinen, Vladimir Pankov, Oliver Weingart, Christoph Janiak   +9 more
wiley   +1 more source

Oxide-hybridized carbon as a catalyst support for efficient anion exchange membrane water electrolysis

Nature Communications
The performance of anion exchange membrane water electrolysis, a key technology for achieving net-zero carbon emissions, can be improved by introducing an appropriate catalyst support.
Jong Seok Park, Hyung-Kyu Lim, Chuan Hu, Eungjun Lee, Hyo Sang Jeon, Jongkyung Ryu, Sion Oh, Tae Kyung Lee, Subin Park, Hyeon Keun Cho, Seung-Ho Yu, Docheon Ahn, Young Moo Lee, Myeong-Geun Kim, Sung Jong Yoo   +14 more
doaj   +1 more source

Simulation and experimental study of local high frequency resistance distribution in proton exchange membrane fuel cells under steady and dynamic conditions

Heliyon
Proton-exchange membrane (PEM) dry–wet variation during PEM fuel cell (PEMFC) operation markedly affects PEMFC lifespan. Therefore, deeper insights into the mechanical degradation mechanism of PEM require analysis of the membrane dry–wet change process ...
Xin Zhan, Jiaqi Sun, Feng Ding, Xiaozhi Xu, Wei Song, Zhigang Shao   +5 more
doaj   +1 more source

Hydrogen's Empty Environmental Promise [PDF]

, 2004
Politicians on both the Left and the Right have increasingly embraced subsidies for hydrogenpowered fuel cells as a promising way to move America away from reliance on petroleum.
Donald Anthrop
core  

Novel ETFE based radiation grafted poly(styrene sulfonic acid-co-methacrylonitrile) proton conducting membranes with increased stability [PDF]

, 2009
Styrene radiation grafted ETFE based proton conducting membranes are subject to degradation under fuel cell operating conditions and show a poor stability. Lifetimes exceeding 250 h can only be achieved with crosslinked membranes.
Alkan Gursel, Selmiye, Alkan Gürsel, Selmiye, Ben youcef, Hicham, Gubler, Lorenz, Henkensmeier, Dirk, Scherer, Gunther G., Scherer, Günther G., Wokaun, Alexander   +7 more
core   +2 more sources

Enhancing CoFe Catalysts with V2CTX MXene‐Derived Materials for Anion Exchange Membrane Electrolyzers

Advanced Functional Materials, EarlyView.
MXene dervied CoFe composites show increased initial Oxygen Evolution Reaction (OER) activity compared to the pure CoFe and MXene in an Anion Exchange Membrane device. Vanadium vacancies in the MXene plays a role in increased OER activity and hinders Fe leaching in the AEM device over using the pure V2C MXene as a support material for the CoFe ...
Can Kaplan, Karuppasamy Dharmaraj, Thorsten Schultz, Leiqiang Qin, Ningjun Chen, Danielle A. Douglas‐Henry, Bastian Schmiedecke, Merve Buldu‐Akturk, Axel Zuber, Iris Dorbandt, Maximilian Reinhardt, Yael Rodriguez‐Ayllon, Yan Lu, Valeria Nicolosi, Norbert Koch, Johanna Rosen, Michelle P. Browne   +16 more
wiley   +1 more source

Features of Electrophoretic Deposition of a Ba-Containing Thin-Film Proton-Conducting Electrolyte on a Porous Cathode Substrate

Applied Sciences, 2020
This paper presents the study of electrophoretic deposition (EPD) of a proton-conducting electrolyte of BaCe0.89Gd0.1Cu0.01O3-δ (BCGCuO) on porous cathode substrates of LaNi0.6Fe0.4O3−δ (LNFO) and La1.7Ba0.3NiO4+δ (LBNO).
Elena Kalinina, Alexander Kolchugin, Kirill Shubin, Andrei Farlenkov, Elena Pikalova   +4 more
doaj   +1 more source

Ion-exchange membrane with platinum electrode assembly Patent [PDF]

, 1968
Development and characteristics of ion-exchange membrane and electrode assembly for fuel cells or electrolysis ...
Jamison, H. H., MCBRYAR
core   +1 more source