Results 41 to 50 of about 77,682 (299)

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

Pengaruh Temperatur Terhadap Kinerja Sel Pembangkit Listrik Direct Methanol (DMFC)

Jurnal Elkomika
ABSTRAK Penelitian ini bertujuan menjelaskan prinsip-prinsip termodinamika-elektrokimia pada sel pembangkit listrik Direct Methanol Fuel Cell (DMFC).
MAYA RAMADIANTI MUSADI, YUNIA ROSSA, GILANG RAMADHAN SURYAMAN   +2 more
doaj   +1 more source

Alcohol Fuel Cells at Optimal Temperatures [PDF]

, 2006
High-power-density alcohol fuel cells can relieve many of the daunting challenges facing a hydrogen energy economy. Here, such fuel cells are achieved using CsH2PO4 as the electrolyte and integrating into the anode chamber a Cu-ZnO/Al2O3 methanol steam ...
Boysen, Dane A., Chisholm, Calum R. I., Haile, Sossina M., Uda, Tetsuya   +3 more
core   +1 more source

Photoswitching Conduction in Framework Materials

Advanced Functional Materials, EarlyView.
This mini‐review summarizes recent advances in state‐of‐the‐art proton and electron conduction in framework materials that can be remotely and reversibly switched on and off by light. It discusses the various photoswitching conduction mechanisms and the strategies employed to enhance photoswitched conductivity.
Helmy Pacheco Hernandez, Stefan Hecht, Wolfgang Wenzel, Lars Heinke, Mariana Kozlowska   +4 more
wiley   +1 more source

A State-of-Art on the Development of Nafion-Based Membrane for Performance Improvement in Direct Methanol Fuel Cells

Membranes, 2022
Nafion, a perfluorosulfonic acid proton exchange membrane (PEM), has been widely used in direct methanol fuel cells (DMFCs) to serve as a proton carrier, methanol barrier, and separator for the anode and cathode.
Wei Wuen Ng, Hui San Thiam, Yean Ling Pang, Kok Chung Chong, Soon Onn Lai   +4 more
doaj   +1 more source

Direct methanol feed fuel cell and system [PDF]

, 2008
Improvements to non acid methanol fuel cells include new formulations for materials. The platinum and ruthenium are more exactly mixed together. Different materials are substituted for these materials.
Chun, William, Frank, Harvey A., Halpert, Gerald, Jeffries-Nakamura, Barbara, Kindler, Andrew, Narayanan, Sekharipuram R., Surampudi, Subbarao   +6 more
core   +2 more sources

Backbone Heterojunction Photocatalysts for Efficient Sacrificial Hydrogen Production

Advanced Functional Materials, EarlyView.
Herein, a ‘single‐component’ organic semiconductor photocatalyst is presented in which a molecular donor is bonded to a polymer acceptor. The resultant material demonstrates exceptional photocatalytic activity for hydrogen evolution in aqueous triethylamine with an outstanding external quantum efficiency of 38% at 420 nm.
Richard J. Lyons, Rhys J. Bourhill, Ewan McQueen, Sam D. Harding, Krzysztof Pawlak, Thomas Fellowes, Harry W. Capps, Alexander J. Cowan, Andrew I. Cooper, Adrian M. Gardner, Martijn A. Zwijnenburg, Reiner Sebastian Sprick   +11 more
wiley   +1 more source

Fast Measurement of Methanol Concentration in Ionic Liquids by Potential Step Method

International Journal of Analytical Chemistry, 2015
The development of direct methanol fuel cells required the attention to the electrolyte. A good electrolyte should not only be ionic conductive but also be crossover resistant. Ionic liquids could be a promising electrolyte for fuel cells.
Michael L. Hainstock, Yijun Tang
doaj   +1 more source

Pt decorated PdFe/C: Extremely High Electrocatalytic Activity for Methanol Oxidation

International Journal of Electrochemical Science, 2012
A carbon supported Pt-decorated PdFe alloy nano-core catalysts (Pt-PdFe/C) for methanol oxidation is prepared via metathetical reaction between PdFe alloy nanoparticles (deposited on carbon) and PtCl42- in aqueous solution.
Hui Wang, Shan Ji, Wei Wang, Vladimir Linkov, Sivakumar Pasupathi, Rongfang Wang   +5 more
doaj   +1 more source

Tuning the Electronic Structure and Spin State of Fe─N─C Catalysts Using an Axial Oxygen Ligand and Fe Clusters for High‐Efficiency Rechargeable Zinc–Air Batteries

Advanced Functional Materials, EarlyView.
A FeN4─O/Clu@NC‐0.1Ac catalyst containing atomically‐dispersed FeN4─O sites (medium‐spin Fe2+) and Fe clusters delivered a half‐wave potential of 0.89 V for ORR and an overpotential of 330 mV at 10 mA cm−2 for OER in 0.1 m KOH. When the catalyst was used in a rechargeable Zn–air battery, a power density of 284.5 mW cm−2 was achieved with excellent ...
Yongfang Zhou, Yu Mao, Mengyao Chang, Ziyun Wang, Wenke Xie, Cuizhu Ye, Shanghai Wei, Lars Thomsen, Geoffrey I. N. Waterhouse   +8 more
wiley   +1 more source