Results 31 to 40 of about 8,133,971 (297)

Vapor-feed direct methanol fuel cells using pure methanol

Energy Conversion and Management: X
This work optimizes the performance of the direct methanol fuel cell (DMFC) to increase its efficiency and strengthen its validity in portable power generation.
Ryan Spragg, Xianglin Li
doaj   +1 more source

Composite sPEEK with Nanoparticles for Fuel Cell's Applications: Review [PDF]

, 2012
The membranes in fuel cells must both conduct protons and serve as a barrier for fuel. This review discusses modifications nanoparticles of sPEEK (sulfonated polyether-ether ketone), sPEEK have advantages properties as fuel cell’s membranes such as ...
Arief , Rahman Hakim, Tutuk , Djoko Kusworo, Aprilina , Purbasari, Eniya, Listiani Dewi   +3 more
core   +1 more source

The Non-Adiabatic Model of Air-Breathing Micro Direct Methanol Fuel Cells

International Journal of Electrochemical Science, 2018
A three-dimensional two-phase non-adiabatic model is proposed for air-breathing micro direct methanol fuel cells (DMFC). The coupled heat and mass transport, along with the electrochemical reactions occurring in the air-breathing DMFC are modeled.
Luwen Wang, Yong Huang, Zhaoxia Yuan, Yumin Xu, Gaofeng Wang   +4 more
doaj   +1 more source

Composite Membranes of PVDF Nanofibers Impregnated with Nafion for Increased Fuel Concentrations in Direct Methanol Fuel Cells

Fuel Cells, 2019
Serious methanol crossover of Nafion greatly limits the use of increased fuel concentrations in methanol fuel cells, which results in a decreased power density.
Y. Li, Justin Hui, J. Kawchuk, Allen O'Brien, Zhen-Hua Jiang, M. Hoorfar   +5 more
semanticscholar   +1 more source

Organic-Inorganic Novel Green Cation Exchange Membranes for Direct Methanol Fuel Cells

Energies, 2021
Commercializing direct methanol fuel cells (DMFC) demands cost-effective cation exchange membranes. Herein, a polymeric blend is prepared from low-cost and eco-friendly polymers (i.e., iota carrageenan (IC) and polyvinyl alcohol (PVA)).
Marwa H. Gouda, Tamer M. Tamer, Abdelaziz H. Konsowa, Hassan A. Farag, Mohamed S. Mohy Eldin   +4 more
doaj   +1 more source

Modeling of high-efficient direct methanol fuel cells with order-structured catalyst layer

Applied Energy, 2019
Direct methanol fuel cell is widely seen as the promising energy conversion technology with high energy efficiency, low emission and easy delivery of fuel.
Jing-Hui Jiang, Yin-Shi Li, Jiarong Liang, Wei-Wei Yang, Xiang-Lin Li   +4 more
semanticscholar   +1 more source

Direct alcohol fuel cells: advances in membrane engineering, catalysis, and commercialization challenges

Results in Chemistry
The recent surge in ongoing global energy crisis caused by political instability among major fuel supplying nations has resulted in unpredictable international energy security.
Charles Muzenda, Rudzani Sigwadi
doaj   +1 more source

Self‐Assembled Hybrid Cell‐Enzyme Materials for Gas‐Powered Biocatalysis

Advanced Functional Materials, EarlyView.
Integrating living cells with programmable enzyme networks enables hybrid materials that convert gaseous feedstocks into chemical reducing power. These gas‐powered catalytic beads operate as modular, recyclable platforms for adaptive biocatalysis and sustainable synthesis.
Marius Stoeckle, Kersten S. Rabe, Christof M. Niemeyer   +2 more
wiley   +1 more source

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

Electrochemical Analysis of Direct Methanol Fuel Cells for Low Temperature Operation

International Journal of Electrochemical Science, 2006
The electrochemical behaviour of Direct Methanol Fuel Cells (DMFCs) was investigated at low temperatures (30°C-60°C). An 85 wt% Pt-Ru (1:1 a/o)/C anode catalyst and a 60 wt% Pt/C cathode catalyst were in-house prepared and characterised. The influence of
V. Baglio, A. Di Blasi, E. Modica, P. Cretì, V. Antonucci, A.S. Aricò   +5 more
doaj   +2 more sources