Results 51 to 60 of about 1,095 (184)
Electrochromic microsupercapacitors visualize charge storage through redox‐driven color change. By systematically tuning electrode gap and redox‐species concentration, this study reveals that electric field distribution, more than concentration gradient alone, governs diffusive flux and energy storage behavior.
Keon‐Woo Kim +8 more
wiley +1 more source
Cost Analysis of Direct Methanol Fuel Cell Stacks for Mass Production
Fuel cells are very promising technologies for efficient electrical energy generation. The development of enhanced system components and new engineering solutions is fundamental for the large-scale deployment of these devices.
Mauro Francesco Sgroi +9 more
doaj +1 more source
Dip‐coated NiO, Mn2O3, and NiO–Mn2O3 thin films on FTO exhibited uniform porous morphology and well‐definedphase composition. Notably, the NiO–Mn2O3 composite delivered superior electrocatalytic performance toward methanol oxidation, as evidenced by higher current density and lower charge‐transfer resistance, highlighting its potential as a cost ...
Ujala Zafar +7 more
wiley +1 more source
Development of a Direct Methanol Fuel Cell with Lightweight Disc Type Current Collectors
The direct methanol fuel cell (DMFC) adopts methanol solution as a fuel suitable for low power portable applications. A miniature, lightweight, passive air-breathing design is therefore desired.
Yean-Der Kuan +2 more
doaj +1 more source
Various spillover‐mediated electrocatalytic reactions, such as hydrogen and oxygen evolution, carbon dioxide and nitrogen reduction, and methanol oxidization reactions, are systematically summarized. Abstract Spillover phenomenon, which is characterized by the dynamic migration of active species across catalyst surfaces, provides a promising avenue to ...
Di Wang +5 more
wiley +1 more source
To investigate the performance degradation characteristics of direct methanol fuel cell (DMFC) under two different operating conditions, the worldwide harmonized light vehicle test cycle (WLTC) and China light vehicle test cycle (CLTC), a combined method
WANG Yangda, WANG Jianguo, LIAN Guan, ZHANG Dacheng
doaj +1 more source
An Improved Tank in Series Model for the Direct Methanol Fuel Cell
This study presents an improved TSR model for Direct Methanol Fuel Cell (DMFC) with mass and energy balance equations taking into account gas evolution in the anode channels.
Valery A. Danilov +2 more
doaj +1 more source
Performance of passive Direct Methanol Fuel Cell: modelling and experimental studies
Low methanol and water crossover with high methanol concentrations are essential requirements for a passive Direct Methanol Fuel Cell (DMFC) to be used in portable applications.
Beatriz A. Berns +3 more
doaj +1 more source
A Portable Direct Methanol Fuel Cell Power Station for Long-Term Internet of Things Applications
With regard to the best electro-chemical efficiency of an active direct methanol fuel cell (DMFC), the stacks and their balance of plant (BOP) are complex to build and operate. The yield of making the large-scale stacks is difficult to improve. Therefore,
Chung-Jen Chou +5 more
doaj +1 more source
Hydrogen‐powered aviation offers a transformative pathway to zero‐emission flight by eliminating in‐flight CO2 emissions. Key considerations include propulsion systems (fuel cells and hydrogen combustion), cryogenic storage and insulation challenges, infrastructure and cost barriers, and supply‐chain constraints.
Mubasshira +4 more
wiley +1 more source

