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Recently, we have predicted [Phys. Rev. Lett. 97, 226102 (2006)] that a single ethylene molecule can form stable complexes with light transition metals (TM) such as Ti and the resulting TMn-ethylene complex can absorb up to ~12 and 14 wt %…

材料科学 · 物理学 2009-11-13 W. Zhou , T. Yildirim , E. Durgun , S. Ciraci

From first-principles calculations, we predict that a single ethylene molecule can form a stable complex with two transition metals (TM) such as Ti. The resulting TM-ethylene complex then absorbs up to ten hydrogen molecules, reaching to…

其他凝聚态物理 · 物理学 2009-11-11 Engin Durgun , Salim Ciraci , W. Zhou , Taner Yildirim

Structure, stability and reactivity of clathrate hydrates with or without hydrogen encapsulation are studied using standard density functional calculations. Conceptual density functional theory based reactivity descriptors and the…

原子与分子团簇 · 物理学 2016-09-28 Pratim Kumar Chattaraj , Sateesh Bandaru , Sukanta Mondal

Hydrogen embrittlement in metals (HE) is a serious challenge for the use of high strength materials in engineering practice and a major barrier to the use of hydrogen for global decarbonization. Here we describe the factors and variables…

The capacity of Ti-capped sp carbon atomic chains for use as hydrogen storage media is studied using first-principles density functional theory. The Ti atom is strongly attached at one end of the carbon chains via d-p hybridization, forming…

材料科学 · 物理学 2017-03-15 Chun-Sheng Liu , Hui An , Zhi Zeng

Molecular dynamics simulations combined with periodic electronic structure calculations are performed to decipher structural, thermodynamical and dynamical properties of the interfaced vs. confined water adsorbed in hexagonal 1D channels of…

材料科学 · 物理学 2020-11-17 Mohammad R. Momeni , Zeyu Zhang , David Dell'Angelo , Farnaz A. Shakib

Hydrogen is deemed as an attractive energy carrier alternative to fossil fuels, and it is required to store for many applications. Physisorption is one of the promising ways to store H$_2$ for its practical applications. Covalent Organic…

材料科学 · 物理学 2021-11-05 Nilima Sinha , Srimanta Pakhira

Physisorption of hydrogen molecules in metal-organic frameworks (MOFs) provides a promising way for hydrogen storage, in which the van der Waals (vdW) interaction plays an important role but cannot described by the density functional theory…

材料科学 · 物理学 2012-10-17 Yue Huang , San-Huang Ke

Superhalogens are species whose electron affinity (EA) or vertical detachment energy (VDE) exceed to those of halogen. These species typically consist of a central electropositive atom with electronegative ligands. The EA or VDE of species…

化学物理 · 物理学 2018-01-09 Ambrish Kumar Srivastava , Neeraj Misra

The transition to a low-carbon economy demands efficient and sustainable energy-storage solutions, with hydrogen emerging as a promising clean-energy carrier and with metal hydrides recognized for their hydrogen-storage capacity. Here, we…

A temperature-pressure phase diagram has been generated through the study of hydrogen adsorption on the (N_4 C_3 H)_6Li_6 cluster at the B3LYP/6-31G(d) level of theory. Possibility of hydrogen storage in an associated 3D functional material…

原子与分子团簇 · 物理学 2011-06-01 R. Das , P. K. Chattaraj

The current energy transition imposes a rapid implementation of energy storage systems with high energy density and eminent regeneration and cycling efficiency. Metal hydrides are potential candidates for generalized energy storage, when…

The storage of hydrogen (H$_2$) is of economic and ecological relevance, because it could potentially replace petroleum-based fuels. However, H$_2$ storage at mild condition remains one of the bottlenecks for its widespread usage. In order…

材料科学 · 物理学 2019-12-24 Srimanta Pakhira , Jose L. Mendoza-Cortes

The chemistry (composition and bonding information) of metallic glasses (MGs) is at least as important as structural topology for understanding their properties and production/processing peculiarities. This article reports a machine…

材料科学 · 物理学 2020-11-18 Ary R. Ferreira

We have used first-principles methods to investigate how metal atoms dispersed in the interlayer space of graphitic materials affect their hydrogen-binding properties. We have considered ideal stage-one metal-intercalated graphites of…

材料科学 · 物理学 2008-06-19 Manuel Cobian , Jorge Iniguez

We study polylithiated molecules as building blocks for hydrogen storage materials, using first-principles calculations. $\clifour$ and $\olitwo$ bind 12 and 10 hydrogen molecules, respectively, with an average binding energy of 0.10 and…

材料科学 · 物理学 2009-05-18 Süleyman Er , Gilles A. de Wijs , Geert Brocks

First principles based DFT calculations performed to insight structural and electronic properties of Boron doped Magnesium atom decorated graphene sheet for application of hydrogen storage. The four H2 molecules stably binds magnesium atom…

材料科学 · 物理学 2020-03-31 Baliram Lone

The bonding mechanism of ethene to a nickel or palladium center is studied by the density matrix renormalization group algorithm, the complete active space self consistent field method, coupled cluster theory, and density functional theory.…

Extensive molecular dynamics computer simulations have been conducted for ethanol-water liquid mixtures in the water-rich side of the composition range, with 10, 20 and 30 mol % of the alcohol, at temperatures between room temperature and…

化学物理 · 物理学 2019-06-12 Szilvia Pothoczki , László Pusztai , Imre Bakó

Using first principles calculations, we show the high hydrogen storage capacity of a new class of compounds, metalloboranes. Metalloboranes are transition metal (TM) and borane compounds that obey a novel-bonding scheme. We have found that…

材料科学 · 物理学 2015-12-08 A. R. Akbarzadeh , D. Vrinceanu , C. J. Tymczak
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