Results 71 to 80 of about 186,864 (310)

Effect of Atomic Layer Deposition of Ultra‐Thin Oxide on Reactivity and Durability of Perovskite Oxygen Electrodes

Advanced Materials, EarlyView.
This table of contents illustrates that the mechanism for mitigating Sr segregation depends strongly on the chemistry of the coating layer. HfO2 electrostatically stabilizes the surface by lowering the surface oxygen vacancies, which serve as the driving force for Sr migration. On the other hand, Al2O3 and Fe2O3 react with segregated Sr to form Sr‐Al‐O
Jongsu Seo, SungHyun Jeon, Hyunseung Kim, San Kwak, DongHwan Oh, Bonjae Koo, Jinwook Kim, Jeong Hwan Kim, WooChul Jung   +8 more
wiley   +1 more source

Polymorph‐Specific Electronic Transduction in WO3 during Molecular Sensing

Advanced Materials, EarlyView.
Metal‐oxide polymorphs with similar surface chemistry can nevertheless exhibit distinct sensing properties. In γ‐ and ε‐WO3, analyte adsorption appears comparable; yet, only ε‐WO3 induces a pronounced lattice electronic perturbation that accommodates charge in sub‐conduction band minimum states.
Matteo D'Andria, Meng Yin, Stefan Neuhauser, Vlasis G. Mavrantzas, Ying Chen, Ken Suzuki, Andreas T. Güntner   +6 more
wiley   +1 more source

Exploatarea tractoarelor agricole alimentate cu biocombustibil

Agricultural Science, 2012
The paper presents the testing results concerning the operation of agricultural tractors which were divided into two groups: those operating on diesel fuel and others on biofuel B20.
LACUSTA Ion , BEŞLEAGĂ Igor
doaj  

Positively Charged Polymer‐Brush MOFs for Large‐Area, Pressure‐Resistant Gas Separation Membranes

Advanced Materials, EarlyView.
A universal POPA strategy enables positively charged polymer‐brush MOFs with self‐adaptive interfacial interlocking to resist aggregation under fast processing. This design ensures seamless dispersion within large‐area selective layers, achieving 1 m‐wide roll‐to‐roll fabrication of pressure‐resistant MMCMs with tunable CO2 separation performance ...
Yi Yang, Ye Yuan, Yuxiu Sun, Fei Shi, Chenyang Song, Weifan Wang, Qinghua Li, Menglong Sheng, Zhihua Qiao, Jingwei Hou, Anthony K. Cheetham, Zhi Wang   +11 more
wiley   +1 more source

Application of the first combustion model to spray combustion

Applied Thermal Engineering, 2004
Liquid fuel is of interest to apply to gas turbines. The large advantage is that liquids are easily storable as compared to gaseous fuels. Disadvantage is that liquid fuel has to be sprayed, vaporized and mixed with air. Combustion occurs at some stage of mixing and ignition.
de Jager, B., Kok, J.B.W.
openaire   +2 more sources

Advanced Separators for Liquid and Quasi‐Solid Lithium Rechargeable Batteries: Design and Development

Advanced Materials, EarlyView.
This review traces the evolution of lithium‐ion battery separators from passive barriers to multifunctional components central to cell safety and performance. Polymer‐ceramic hybrids, nanofiber architectures, and bio‐derived membranes deliver ionic conductivities above 3 mS cm−1, thermal stability beyond 200 °C, and effective suppression of lithium ...
Karthik Vishweswariah, Ningaraju Gejjiganahalli Ningappa, Anil Kumar M. R., Jeremy I. G. Dawkins, Thiago M. G. Selva, Karim Zaghib   +5 more
wiley   +1 more source

Combustibles alternativos

Revista Facultad de Ingeniería Universidad de Antioquia, 1998
En este artículo se hace una revisión sobre los principales combustibles que se han propuesto últimamente para disminuír las emisiones de compuestos contaminantes a la atmósfera, produci­dos como consecuencia del uso de la gasolina común. En cada caso se
Consuelo Montes de Correa, Gildardo Hernández-Saldarriaga   +1 more
doaj   +1 more source

Control de un sistema fotovoltaico con asistencia de red para la producción de hidrógeno [PDF]

, 2013
La capacidad de almacenamiento y transporte de energía de alta calidad hace del hidrógeno un excelente vector energético. Debido a que no se encuentra naturalmente aislado, este elemento requiere una determinada cantidad de energía para su extracción de ...
Cendoya, Marcelo G., De Battista, Hernán, García Clúa, José Gabriel, Inthamoussou, Fernando Ariel, Mantz, Ricardo Julián   +4 more
core  

Plasmonic Nanomachines: Creating Local Potential Gradients and Motions

Advanced Materials, EarlyView.
Plasmonic nanomachines can generate optical, thermal, and chemical potential gradients to drive directional rectilinear, rotational, and twisting motions at the nanometer scale. The integration of multimodal plasmonic forces with functional materials and programmed structural distortions enables precise spatiotemporal actuation, thereby providing a ...
Yoonhee Kim, Soohyun Ji, Donghyun Choi, Jwa‐Min Nam   +3 more
wiley   +1 more source

Análisis de la competitividad y la penetración de los biocombustibles en el mercado de combustibles para automoción en España. [PDF]

, 2010
En la actualidad, los biocombustibles no son rentables, ya que son más caros que sus equivalentes de origen fósiles. Por esto cabe preguntarse si pueden serlo en el futuro.
Hernández Sobrino, Fernando, Rodríguez Monroy, Carlos   +1 more
core