Results 41 to 50 of about 8,519,610 (290)

BZ-BattExt – DMFC as Battery-Extender in solar-boat application [PDF]

, 2011
For special applications Direct Methanol Fuel Cells (DMFC) are close to commercial application or already commercialized today. However for the step from laboratory to a broader market of fuel cells, a significant cost reduction, as well as an ...
Krajinovic, Katica, Häring, Thomas, Kopf, Joachim, Nettesheim, Stefan, Schirmer, Johannes, Zabold , Jochen, Reissner, Regine, Kopf , Joachim, Steinhart, Klaus, Zabold, Jochen   +9 more
core  

Decoupling the Size and Loading Effects in Silver Nanoparticles for Efficient Paired Carbon Dioxide and Formaldehyde Electrolysis

Advanced Functional Materials, EarlyView.
We investigate size‐dependent CO selectivity on Ag nanoparticles, where optimized Ag loading achieves nearly 100% Faradaic Efficiency for CO at −100 mA·cm−2. In situ SERS and XPS reveal the crucial role of optimized loading in catalytic performance. The Ag/C catalyst further exhibits bifunctional activity, enabling efficient electrolysis of CO2 and ...
Venkata S. R. K. Tandava, Clara Große, Debabrata Bagchi, Zhenye Zhu, Suptish Ghosh, J. Niklas Hausmann, Carsten Walter, Rosario Suarez Anzorena, Catalina Elena Jimenez, Yasmin Lucero Cobos‐Becerra, Jack C. Q. Fletcher, Tobias Sontheimer, Michael Schwarze, Holger Dau, Matthias Driess, Marcus Bär, Prashanth W. Menezes   +16 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

Systematic analysis of the direct methanol fuel cell

Journal of Applied Electrochemistry, 2006
The dynamic operating behaviour of the direct methanol fuel cell (DMFC) is governed by several physico-chemical phenomena which occur simultaneously: double layer charging, electrode kinetics, mass transport inside the porous structures, reactant distributions in the anode and cathode flowbeds etc.
Schultz, Thorsten, Krewer, Ulrike, Vidaković, T., Pfafferodt, Matthias, Christov, Mihai, Sundmacher, Kai   +5 more
openaire   +4 more sources

Azobenzene's Cross‐Scale Optics and Photonics: Molecular Photoswitching, Mesoscopic Material Motions, and Adaptive Devices

Advanced Materials, EarlyView.
Azobenzene photoswitches translate molecular‐scale E/Z photoisomerization into macroscopic material responses and device‐level photonic functions. This Review highlights how azobenzene research has evolved from molecular photochemistry to photoalignment, mass migration, photomechanics, and heat release, ultimately enabling holography, reconfigurable ...
Heeju Son, Soyul Kwak, Heerin Noh, Minsang Kim, Doyeon Noh, Subhayan Chakraborty, Jaewon Lee, YongDeok Cho, Kyeongsoo Kim, Taewoong Eom, Moonyoung Kim, Jangwon Kim, Hoyoung Lee, Soyoung Lee, Jaehun Kim, Grace G. D. Han, Shin‐Tson Wu, Stefano Oscurato, Arri Priimagi, Marina Saphiannikova, Seungwoo Lee   +20 more
wiley   +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

Phase Engineering of Nanomaterials (PEN): Evolution, Current Challenges, and Future Opportunities

Advanced Materials, EarlyView.
This review summarizes the synthesis, phase transition, advanced characterization spanning ex situ to in situ and operando techniques, and diverse applications of phase engineering of nanomaterials (PEN). It further outlines key challenges and future opportunities, such as phase stability, architecture control, and artificial intelligence (AI)‐driven ...
Ye Chen, Zhanxi Fan, Jingjie Ge, Qiyuan He, Zhuangchai Lai, Jiawei Liu, Chaoliang Tan, Hua Zhang   +7 more
wiley   +1 more source

Recent developments, challenges, and future directions in active direct methanol fuel cells

International Journal of Electrochemical Science
Active Direct Methanol Fuel Cells (ADMFCs) have been explored with continuous interest as potentially powerful low-temperature energy conversion technology in portable and distributed power supply systems.
Ephraim Bonah Agyekum, Flavio Odoi-Yorke, Mustafa Abdullah, Arman Ameen, Seepana Praveenkumar, Farhan Lafta Rashid   +5 more
doaj   +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

Alkaline Direct Methanol Fuel Cell [PDF]

ECS Transactions, 2006
Polymer electrolyte membrane based direct methanol fuel cells (PEM-DMFC) have a complicated system design, and their fuel efficiency is limited by methanol cross-over through the proton exchange membrane. In addition, the methanol oxidation kinetics as well as oxygen reduction kinetics are quite slow in the acid electrolyte system. In contrast
Srinivasan Sarangapani, Frank Luczak, Mohammad Enayetullah, Tom Vitella, Paul Osenar   +4 more
openaire   +1 more source