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Lightweight 2D materials due to its large surface area are being studied for its hydrogen storage applications. The characteristics of hydrogen adsorption on the electric field-induced h-BN bilayer were investigated. The overall storage…

Chemical Physics · Physics 2021-06-01 B. Bhettri , P. K. Patra , D. P. Rai

Nitrogen-doped graphene was recently synthesized and was reported to be a catalyst for hydrogen dissociative adsorption under a perpendicular applied electric field (F). In this work, the diffusion of H atoms on N-doped graphene, in the…

Materials Science · Physics 2012-02-15 Z. M. Ao , A. D. Hernández-Nieves , F. M. Peeters , S. Li

A promising material for hydrogen storage at room temperature-Al doped graphene was proposed theoretically by using density functional theory calculation. Hydrogen storage capacity of 5.13 wt% was predicted at T = 300 K and P = 0.1 Gpa with…

Materials Science · Physics 2009-11-13 Z. M. Ao , Q. Jiang , R. Q. Zhang , T. T. Tan , S. Li

We study the hydrogen storage properties of planar boron sheets and compare them to those of graphene. The binding of molecular hydrogen to the boron sheet (0.05 eV) is stronger than that to graphene. We find that dispersion of alkali metal…

Materials Science · Physics 2009-10-27 Süleyman Er , Gilles A. de Wijs , Geert Brocks

Due to the presence of strong static correlation effects and noncovalent interactions, accurate prediction of the electronic and hydrogen storage properties of Li-adsorbed acenes with n linearly fused benzene rings (n = 3 - 8) has been very…

Chemical Physics · Physics 2016-09-12 Sonai Seenithurai , Jeng-Da Chai

The electric field dielectric polarization-based separations mechanism represents a novel method for separating solutions at small length scales. An electric field gradient with a maximum strength of $\mathrm{0.4~MV/m}$ applied across a…

Chemical Physics · Physics 2023-11-29 Gaurav Anand , Samira Safaripour , Craig Snoeyink

The absorption energy of atomic hydrogen at rotated graphene bilayers is studied using ab initio methods based on the density functional theory including van der Waals interactions. We find that, due to the surface corrugation induced by…

Mesoscale and Nanoscale Physics · Physics 2017-10-06 Ivan Brihuega , Felix Yndurain

The adsorption of hydrogen at nonpolar GaN(1-100) surfaces and its impact on the electronic and vibrational properties is investigated using surface electron spectroscopy in combination with density functional theory (DFT) calculations. For…

Materials Science · Physics 2017-06-28 L. Lymperakis , J. Neugebauer , M. Himmerlich , S. Krischok , M. Rink , J. Kröger , V. M. Polyakov

Ab initio density-functional theory study suggests that pillared Li-dispersed boron carbide nanotubes is capable of storing hydrogen with a mass density higher than 6.0 weight% and a volumetric density higher than 45 g/L. The boron…

Materials Science · Physics 2007-05-23 Xiaojun Wu , Yi Gao , Xiao Cheng Zeng

Typical ferroelectrics possess a large spontaneous polarization Ps but simultaneously a large remnant polarization Pr as well, resulting in an inferior energy storage density.A mechanism that can reduce the Pr while maintain the Ps is…

Materials Science · Physics 2021-03-24 Zhiyang Wang , Deqing Xue , Dezhen Xue , Yumei Zhou , Xiangdong Ding , Jun Sun

Adsorption of hydrogen atoms on a single graphite sheet (graphene) has been investigated by first-principles electronic structure means, employing plane-wave based, periodic density functional theory. A reasonably large 5x5 surface unit…

Materials Science · Physics 2009-11-13 Simone Casolo , Ole Martin Lovvik , Rocco Martinazzo , Gian Franco Tantardini

The electronic structure modifications of WSe2 upon NO2-adsorption at room and low temperatures were studied by means of photoelectron spectroscopy. We found only moderate changes in the electronic structure, which are manifested as an…

Materials Science · Physics 2016-07-12 Roman Ovcharenko , Yuriy Dedkov , Elena Voloshina

Chemical adsorption of atomic hydrogen on a negatively charged single layer graphene sheet has been analyzed with ab-initio Density Functional Theory calculations. We have simulated both finite clusters and infinite periodic systems to…

Materials Science · Physics 2015-05-18 J. A. Verges , P. L. de Andres

Strain effects on the stability, electronic structure, and hydrogen storage capacity of lithium-doped graphane (CHLi) have been investigated by stateof-the art first principle density functional theory (DFT). Molecular dynamics MD)…

Materials Science · Physics 2015-06-05 Tanveer Hussain , Abir De Sarkar , Rajeev Ahuja

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…

Materials Science · Physics 2020-03-31 Baliram Lone

Enhancing the electronic and diffusion properties of lithium-ion batteries is crucial for improving the performance of the fast-growing energy storage devices. Recently, fast-charging capability of commercial-like lithium-ion anodes with…

We propose a multi-layer graphene-based device in which storage and release of atomic hydrogen is obtained by exploiting and controlling the corrugation of the layers. The proposal is based on density-functional simulations of hydrogen…

Mesoscale and Nanoscale Physics · Physics 2011-01-07 Valentina Tozzini , Vittorio Pellegrini

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…

Materials Science · Physics 2011-06-23 N. S. Venkataramanan , A. Suvitha , H. Mizuseki , Y. Kawazoe

Hydrogen adsorption on delta-Pu (100) and (111) surfaces using the generalized gradient approximation of the density functional theory with Perdew and Wang functionals have been studied at both the spin-polarized level and the…

Strongly Correlated Electrons · Physics 2009-11-10 M. N. Huda , A. K. Ray

In the close vicinity of a hot body, at distances smaller than the thermal wavelength, a high electromagnetic energy density exists due to the presence of evanescent fields radiated by the partial charges in motion around its surface. This…

Applied Physics · Physics 2019-08-07 Philippe Ben-Abdallah , Svend-Age Biehs
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