中文
相关论文

相关论文: Polymer Stable Magnesium Nanocomposites Prepared b…

200 篇论文

Magnesium dihydride ($\mgh$) stores 7.7 weight % hydrogen, but it suffers from a high thermodynamic stability and slow (de)hydrogenation kinetics. Alloying Mg with lightweight transition metals (TM = Sc, Ti, V, Cr) aims at improving the…

材料科学 · 物理学 2009-02-04 Suleyman Er , Dhirendra Tiwari , Gilles A. de Wijs , Geert Brocks

Hydrogen is a promising energy carrier that can push forward the energy transition because of its high energy density (142 MJ kg-1), variety of potential sources, low weight and low environmental impact, but its storage for automotive…

Reversible hydrogen uptake and the metal/dielectric transition make the Mg/MgH$_2$ system a prime candidate for solid state hydrogen storage and dynamic plasmonics. However, high dehydrogenation temperatures and slow dehydrogenation hamper…

Magnesium and its alloys are the most investigated materials for solid-state hydrogen storage in the form of metal hydrides, but there are still unresolved problems with the kinetics and thermodynamics of hydrogenation and dehydrogenation…

Hydrogen can be stored in containers or in materials. In materials it can exist in molecular or atomic forms. The atomic form can further exist as multiple phases. Molecular hydrogen can be adsorbed on the surface or can be present inside…

1.8 micrometer-thick magnesium hydride films were synthesized in a single-step process by reactive plasma-assisted sputtering. The MgH2 thin films, which were deposited on two types of flexible surfaces (namely graphite and polyimide foils)…

应用物理 · 物理学 2023-11-03 Huy Le-Quoc , Marie Coste , Ana Lacoste , L. Laversenne

We report the development of magnetic nanocomposite sheets with superhydrophobic and superoleophilic surfaces generated by laser ablation. Polydimethylsiloxane elastomer freestanding films, loaded homogeneously with 2% wt. carbon coated…

Nanocomposites comprising of high surface area adsorption materials and nanosized transition metals have emerged as a promising strategy for hydrogen storage application due to their inherent ability to store atomic and molecular forms of…

材料科学 · 物理学 2024-05-29 A Flamina , R M Raghavendra , Anandh Subramaniam , Raghupathy Yuvaraj

The development of reversible hydrogen storage materials has become crucial for enabling carbon-neutral energy systems. Based on this, the present work investigates the hydrogen storage on the sodium-decorated P-C$_3$N (Na@P-C$_3$N), a…

The atomic scale insights into the interaction of water with oxide surface are essential for elucidating the mechanism of physiochemical processes in various scientific and practical fields, since the water is ubiquitous and coats…

化学物理 · 物理学 2017-12-12 Zhenjun Song , Qiang Wang

A reliable process for compressing hydrogen and for removing all contaminants is that of the metal hydride thermal compression. The use of metal hydride technology in hydrogen compression applications though, requires thorough structural…

Magnesium hydride (MgH$_2$) has been widely studied for effective hydrogen storage. However, its bulk desorption temperature (553 K) is deemed too high for practical applications. Besides doping, a strategy to decrease such reaction energy…

We tune the thermodynamics of hydrogen absorption in Mg by means of elastic clamping. The loading isotherms measured by hydrogenography show that Mg films covered with Mg-alloy-forming elements, such as Pd and Ni, have hydrogen plateau…

材料科学 · 物理学 2015-05-13 A. Baldi , M. Gonzalez-Silveira , V. Palmisano , B. Dam , R. Griessen

Palladium satisfies most of the requirements for an effective hydrogen storage material with two major drawbacks: it has a relatively low gravimetric hydrogen density and is prohibitively expensive for large-scale applications. Pd-based…

材料科学 · 物理学 2022-01-19 S. S. Das , G. Kopnov , A. Gerber

Hydrogen-based fuels demand high-density storage that can operate under ambient temperatures. Pd and its alloys are the most investigated metal hydrides for hydrogen fuel cell applications. This study presented an alternative Pd alloy for…

材料科学 · 物理学 2022-07-13 Pritam Das , Young-Su Lee , Seung-Cheol Lee , Satadeep Bhattacharjee

A novel aluminium rich alloy for hydrogen storage has been discovered, ScAl0.8Mg0.2, which has superior properties regarding hydrogen storage capacity, kinetics and stability towards air oxidation in comparison to hydrogen absorption in…

Magnesium alanate Mg(AlH4)2 has recently raised interest as a potential material for hydrogen storage. We apply ab initio calculations to characterize structural, electronic and energetic properties of Mg(AlH4)2. Density functional theory…

材料科学 · 物理学 2007-05-23 M. J. van Setten , G. A. de Wijs , V. A. Popa , G. Brocks

Hydrogen holds great promise as a cleaner alternative to fossil fuels, but its efficient and affordable storage remains a significant challenge. Bimetallic systems, such as Pd-Ni, present a promising option for storing hydrogen. In this…

The increase in threats from global warming due to the consumption of fossil fuels requires our planet to adopt new strategies to harness the inexhaustible sources of energy. Hydrogen is an energy carrier which holds tremendous promise as a…

材料科学 · 物理学 2011-06-23 N. S. Venkataramanan , A. Suvitha , H. Mizuseki , Y. Kawazoe
‹ 上一页 1 2 3 10 下一页 ›