Results 31 to 40 of about 38,234 (262)

Ce3+ doped CeP2O7 Ceramic Electrolyte for high temperature Proton Exchange Membrane Fuel Cell

International Journal of Electrochemical Science, 2017
Proton conductors capable of operating in high temperature range (over 180oC) has attracted worldwide attention. The promising inorganic membranes candidates CeP2O7 and Ce3+ doped CeP2O7 were used between 160 oC and 280 oC for Proton exchange membrane ...
Xin Huang, Gang Wang, Min Huang, Yuming Deng, MingMing Fei, Chenxi Xu, Jigui Cheng   +6 more
doaj   +1 more source

Performance Investigation of High-Temperature Proton Exchange Membrane Fuel Cell

Jurnal Kejuruteraan, 2018
تحسن الوعي بالقضايا المرتبطة بتطوير الطاقة المستدامة وتغير المناخ بشكل كبير. تم اعتبار خلية الوقود مصدر طاقة بديل فعال ونظيف. تؤدي العملية الرئيسية على خلايا وقود غشاء تبادل البروتون (PEMFCs) بشكل طبيعي إلى تطور الماء كمنتج ثانوي للتفاعل بين الهيدروجين والأكسجين.
Mohamad Zaqwan Mohd Igbal, Masli Irwan Rosli, Dedikarni Panuh   +2 more
openaire   +1 more source

Atomic Size Misfit for Electrocatalytic Small Molecule Activation

Advanced Functional Materials, EarlyView.
This review explores the application and mechanisms of atomic size misfit in catalysis for small molecule activation, focusing on how structural defects and electronic properties can effectively lower the energy barriers of chemical bonds in molecules like H2O, CO2, and N2.
Ping Hong, Changfan Xu, Huaping Zhao, Yong Lei   +3 more
wiley   +1 more source

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

Improved Electrodes for High Temperature Proton Exchange Membrane Fuel Cells using Carbon Nanospheres [PDF]

ChemSusChem, 2016
AbstractThis work evaluates the use of carbon nanospheres (CNS) in microporous layers (MPL) of high temperature proton exchange membrane fuel cell (HT‐PEMFC) electrodes and compares the characteristics and performance with those obtained using conventional MPL based on carbon black.
Héctor Zamora, Jorge Plaza, Pablo Cañizares, Justo Lobato, Manuel A. Rodrigo   +4 more
openaire   +5 more sources

Bimetallic Nanoparticles as Cocatalysts for Photocatalytic Hydrogen Production

Advanced Functional Materials, EarlyView.
Recent developments have introduced bimetallic nanoparticles as effective cocatalysts for photocatalytic systems. This review explores the rapidly expanding research on bimetallic cocatalysts for photocatalytic production of hydrogen, emphasizing the creation of carrier‐selective contacts, localized surface plasmon resonance effects, methodologies for ...
Yufen Chen, Asier Agrelo‐Lestón, Ignasi Burgués‐Ceballos, Jordi Llorca, Lluís Soler   +4 more
wiley   +1 more source

Metal Organic Frameworks Modified Proton Exchange Membranes for Fuel Cells

Frontiers in Chemistry, 2020
Proton exchange membrane fuel cells (PEMFCs) have received considerable interest due to their low operating temperature and high energy conversion rate. However, their practical implement suffers from significant performance challenge.
Quanyi Liu, Zekun Li, Donghui Wang, Zhifa Li, Xiaoliang Peng, Chuanbang Liu, Penglun Zheng   +6 more
doaj   +1 more source

Proton Conductivity Enhancement at High Temperature on Polybenzimidazole Membrane Electrolyte with Acid-Functionalized Graphene Oxide Fillers

Membranes, 2022
Graphene oxide (GO) and its acid-functionalized form are known to be effective in enhancing the proton transport properties of phosphoric-acid doped polybenzimidazole (PA-doped PBI) membranes utilized in high-temperature proton exchange membrane fuel ...
Raja Rafidah Raja Sulaiman, Rashmi Walvekar, Wai Yin Wong, Mohammad Khalid, Ming Meng Pang   +4 more
doaj   +1 more source

Water transport study in a high temperature proton exchange membrane fuel cell stack [PDF]

International Journal of Hydrogen Energy, 2014
A study of water transport in a high temperature phosphoric acid doped polybenzimidazole (PBI) membrane fuel cell stack is reported. Tests with different stoichiometries of dry cathode and different humidity levels of anode are performed. It is found that water transport across the membrane electrode assembly (MEA) is noteworthy and that water vapor ...
Bezmalinovic, Dario, Strahl, Stephan, Roda Serrat, Vicente, Husar, Attila Peter   +3 more
openaire   +6 more sources

Modulating Electrochemical CO2 Reduction Pathways via Interfacial Electric Field

Advanced Functional Materials, EarlyView.
Engineering interfacial electric fields in Cu/ITO electrodes enables precise control of CO2 reduction pathways. Charge transfer from Cu to ITO generates positively charged Cu species that steer selectivity from ethylene toward methane. This work demonstrates how interfacial electric‐field modulation can direct reaction intermediates and transform ...
Mahdi Salehi, Zhengyuan Gao, Sai Phani Kumar Vangala, Amirhossein Farzi, Hamed Heidarpour, Morgan McKee, Nikolay Kornienko, Ali Seifitokaldani   +7 more
wiley   +1 more source