Results 71 to 80 of about 33,730 (224)

Development of a Microwave Sensor for Real-Time Monitoring of a Micro Direct Methanol Fuel Cell

Sensors
Micro direct methanol fuel cells (μDMFCs) are a promising power source for microelectronic devices and systems. As the operating state and performance of a μDMFC is generally determined by both electrochemical polarization and methanol crossover, it is ...
Shubin Zhang, Tian Qiang, Yanfeng Jiang
doaj   +1 more source

In vivo metabolism of ibuprofen in growing conventional pigs : a pharmacokinetic approach [PDF]

, 2019
The juvenile conventional pig has been suggested as a preclinical animal model to evaluate pharmacokinetic (PK), pharmacodynamic (PD), and safety parameters in children. However, a lot of developmental changes in pig physiology still need to be unraveled.
Croubels, Siska, De Baere, Siegrid, Devreese, Mathias, Millecam, Joske   +3 more
core   +1 more source

Novel Bilayer Composite Membrane for Passive Direct Methanol Fuel Cells with Pure Methanol

International Journal of Electrochemical Science, 2013
The bilayer composite membrane composed of the sulfonated graphene oxide (SGO)/Nafion and sulfonated activated carbon (SAC)/Nafion composite membrane is designed and prepared by repeatedly bar-coating.
Li-Duan Tsai, Hung-Chung Chien, Wei-Han Huang, Chiu-Ping Huang, Chi-yun Kang, Jiunn-Nan Lin, Feng-Chih Chang   +6 more
doaj   +1 more source

Synergistic Fe–Si Dual‐Site Pathway Engineering in Biomass‐Derived Carbon Matrix for High‐Performance Oxygen Reduction Reaction

Carbon Energy, EarlyView.
We report a dual‐atomic Si–Fe–N–C catalyst synthesized from nitrogen‐rich pinecones and an Fe porphyrin precursor. The inherent Si and N in pinecones form a porous Si–N–C framework that stabilizes Fe atoms during pyrolysis, yielding robust Si–Fe dual sites.
Min Su Cho, Yanmei Zang, Sung Joon Park, Byeong‐Seon An, Ho Jin Lee, Ashishi Gaur, Ghulam Ali, Mingony Kim, Kyung Yoon Chung, Sungbin Park, Yung‐Eun Sung, Daehae Kim, Ki Jae Kim, Chang Woo Myung, HyukSu Han   +14 more
wiley   +1 more source

Performance Analysis of Direct Methanol Fuel Cell for Optimal Operation

Journal of Thermal Science and Technology, 2009
Direct methanol fuel cell (DMFC) is one of promising candidates for power sources of mobile devices. Efficient operation of fuel cell system is very important for long-sustained power supply due to limited tank size.
Changhwan CHO, Yongchan KIM, Young-Soo CHANG   +2 more
doaj   +1 more source

Positive regulation of meiotic DNA double-strand break formation by activation of the DNA damage checkpoint kinase Mec1(ATR) [PDF]

, 2013
During meiosis, formation and repair of programmed DNA double-strand breaks (DSBs) create genetic exchange between homologous chromosomes-a process that is critical for reductional meiotic chromosome segregation and the production of genetically diverse ...
Allison, Rachal M, Garcia, Valerie, Goldman, Alastair S H, Gray, Stephen, Neale, Matthew J   +4 more
core   +1 more source

Selective Oxidation Strategies for Cost‐Efficient Green Hydrogen Production via Hybrid Water Electrolysis

Carbon Energy, EarlyView.
Hybrid water electrolysis has emerged as a promising alternative to conventional electrolysis for sustainable hydrogen production. The economic potential of replacing water oxidation with organic substrates is assessed. For each substrate, representative electrocatalysts and mechanistic insights are reviewed to identify design principles for optimized ...
Conor Brennan‐Pollak, Lua Henderson, Cian Clarke, Maida A. Costa de Oliveira, Dídac A. Fenoll, Sreedhanya Pallilavalappil, Aswathy Babu, Shaista Jabeen, Pranav K. Gangadharan, Huabin Zhang, Suresh C. Pillai, Paula E. Colavita, Max García‐Melchor   +12 more
wiley   +1 more source

Effect of Methanol Crossover in a Liquid-FeedPolymer-Electrolyte Direct Methanol Fuel Cell

Journal of The Electrochemical Society, 1996
The performance of a liquid-feed direct methanol fuel cell employing a proton-exchange membrane electrolyte with Pt-Ru/C as anode and Pt/C as cathode is reported. The fuel cell can deliver a power density of ca. 0.2 $W/cm^2$ at 95°C, sufficient to suggest that the stack construction is well worthwhile.Methanol crossover across the polymer electrolyte ...
Ravikumar, MK, Shukla, AK
openaire   +3 more sources

Methanol crossover and selectivity of nafion/heteropolyacid/montmorillonite nanocomposite proton exchange membranes for DMFC applications [PDF]

Iranian Journal of Chemical Engineering, 2017
In this work, we prepared the nafion/montmorillonite/heteropolyacid nanocomposite membranes for direct methanol fuel cells (DMFCs). The analyses such as X-ray diffraction (XRD), Fourier transform infrared (FTIR), and scanning electron microscopy (SEM ...
M. Azimi, S.J. Peighambardoust
doaj  

Self‐Assembled Luminescent Au(I)–Adamantylamine Coordination Polymer Needles With Thermoresponsive Optical Properties

Chemistry – A European Journal, EarlyView.
A self‐assembled hydrophobic and red phosphorescent Au(I) coordination polymer (CP) was synthesized under mild conditions. Single‐crystal X‐ray diffraction (XRD) demonstrated linear Au(I) chains stabilized by aurophilic and hydrogen bonding interactions.
Miguel Justo‐Tirado, Jorge Escorihuela, Elena Zaballos‐García, Guillermo Mínguez Espallargas, Julia Pérez‐Prieto   +4 more
wiley   +1 more source