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The emergence of the first bilayer B48, which has been both theoretically predicted and experimentally observed, as well as the recent experimental synthesis of bilayer borophene on Ag and Cu, has generated tremendous curiosity in the…

Materials Science · Physics 2023-11-27 Jinhuang Chen , Rui Liao , Linwei Sai , Xue Wu , Jijun Zhao

Solid-state batteries (SSBs) can offer a paradigm shift in battery safety and energy density. Yet, the promise hinges on the ability to integrate high-performance electrodes with state-of-the-art solid electrolytes. For example, lithium…

Materials Science · Physics 2021-08-03 Christian Hänsel , Baltej Singh , David Kiwic , Pieremanuele Canepa , Dipan Kundu

Evolutionary structure searches are used to predict a new class of compounds in the lithium--rich region of the lithium/hydrogen phase diagram under pressure. First principles computations show that LimH, 4<m<9, are stabilized with respect…

Materials Science · Physics 2012-11-09 James Hooper , Eva Zurek

This article presents the reversible hydrogen storage capacities of Li-decorated Si6C14 and Si8C12 using Density Functional Theory (DFT). The chemical stabilities of the designed Si6C14Li6 and Si8C12Li4 nanocages are investigated using…

Materials Science · Physics 2024-07-24 Ankita Jaiswal , Rakesh K. Sahoo , Sridhar Sahu

We used our developed AI search engine~(InvDesFlow) to perform extensive investigations regarding ambient stable superconducting hydrides. A cubic structure Li$_2$AuH$_6$ with Au-H octahedral motifs is identified to be a candidate. After…

Superconductivity · Physics 2025-05-15 Zhenfeng Ouyang , Bo-Wen Yao , Xiao-Qi Han , Peng-Jie Guo , Ze-Feng Gao , Zhong-Yi Lu

The thermodynamics and structural properties of the hexahydride alanates (M2M'AlH6) with the elpasolite structure have been investigated. A series of mixed alkali alanates (Na2LiAlH6, K2LiAlH6 and K2NaAlH6) were synthesized and found to…

Materials Science · Physics 2009-11-11 J. Graetz , Y. Lee , J. J. Reilly , S. Park , T. Vogt

Stability, reactivity and aromaticity of clusters of various noble gas atoms trapped in aromatic H3+ and Li3+ rings are studied at the B3LYP/6-311+G(d) and MP2/6-311+G(d) levels of theory. Electrophilicity, gain in energy and nucleus…

Atomic and Molecular Clusters · Physics 2009-12-01 Arindam Chakraborty , Santanab Giri , Pratim Kumar Chattaraj

In 2006, a novel cobalt-based superalloy was discovered [1] with mechanical properties better than some conventional nickel-based superalloys. As with conventional superalloys, its high performance arises from the precipitate-hardening…

Based on our comprehensive theoretical investigation and known experimental results for small boron clusters, we predict the existence of a novel aromatic inorganic molecule, B12H6. This molecule, which we refer to as borozene, has…

Materials Science · Physics 2009-03-06 N. Gonzalez Szwacki , V. Weber , C. J. Tymczak

Complex light metal hydrides possess many properties which make them attractive as a storage medium for hydrogen, but typically, catalysts are required to lower the hydrogen desorption temperature and to facilitate hydrogen uptake in the…

Materials Science · Physics 2011-07-27 Ralph H. Scheicher , Sa Li , C. Moyses Araujo , Andreas Blomqvist , Rajeev Ahuja , Puru Jena

Lithium thiophosphates (LPS) with the composition (Li$_2$S)$_x$(P$_2$S$_5$)$_{1-x}$ are among the most promising prospective electrolyte materials for solid-state batteries (SSBs), owing to their superionic conductivity at room temperature…

Materials Science · Physics 2022-01-28 Haoyue Guo , Qian Wang , Alexander Urban , Nongnuch Artrith

Functionalized polcyclic aromatic hydrocarbons (PAHs) are an interesting class of molecules in which the electronic state of the graphene-like hydrocarbon part is tuned by the functional group. Searching for new types of donor and acceptor…

Current three-dimensional (3D) hydrodynamical model atmospheres together with NLTE spectrum synthesis, permit to derive reliable atomic and isotopic chemical abundances from high-resolution stellar spectra. Not much is known about the…

Solar and Stellar Astrophysics · Physics 2017-08-02 A. Mott , M. Steffen , E. Caffau , F. Spada , K. G. Strassmeier

We propose new methodologies for stabilizing all-metal antiaromatic clusters like: Al$_{4}$Li$_{4}$. We demonstrate that these all-metal species can be stabilized by complexation with 3d-transition metals very similar to its organic…

Strongly Correlated Electrons · Physics 2007-05-23 Ayan Datta , Swapan K Pati

Using first-principle density functional theory, we investigated the hydrogen storage capacity of Li functionalized adamantane. We showed that if one of the acidic hydrogen atoms of adamantane is replaced by Li/Li+, the resulting complex is…

Mesoscale and Nanoscale Physics · Physics 2015-05-27 Ahmad Ranjbar , Mohammad Khazaei , Natarajan Sathiyamoorthy Venkataramanan , Hoonkyung Lee , Yoshiyuki Kawazoe

MXene and its derivatives have attracted considerable attention for potential application in energy storage like batteries and supercapacitors owing to its ultrathin metallic structures. However, the complexity of the ionic and electronic…

Materials Science · Physics 2022-04-20 Qiye Guan , Hejin Yan , Yongqing Cai

The aromaticity in the polyacene analogues of several inorganic ring compounds (BN-acenes, CN-acenes, BO-acenes and Na6-acenes) is reported here for the first time. Conceptual density functional theory based reactivity descriptors and the…

Atomic and Molecular Clusters · Physics 2016-09-28 Pratim Kumar Chattaraj , Debesh Ranjan Roy

By bridging graphene and benzene through a well-defined sequence of polycyclic aromatic hydrocarbons and their inherent shell structure, J. Phys. Chem. C, 2018, 122, 17526, it is shown that graphene is actually a coherent arrangement of…

Chemical Physics · Physics 2020-07-01 Aristides D. Zdetsis

Nanomaterials are anticipated to be promising storage media, owing to their high surface-to-mass ratio. The high hydrogen capacity achieved by using graphene has reinforced this opinion and motivated investigations of the possibility to use…

Materials Science · Physics 2013-11-26 Yuanyue Liu , Vasilii I. Artyukhov , Mingjie Liu , Avetik R. Harutyunyan , Boris I. Yakobson

We study the modifications on the ground and excited state properties of polycyclic aromatic hydrocarbons (PAHs), induced by the variation of concavity and $\pi$-connectivity. Inspired by experimentally feasible systems, we study three…

Mesoscale and Nanoscale Physics · Physics 2015-02-26 Caterina Cocchi , Deborah Prezzi , Alice Ruini , Marilia J. Caldas , Annalisa Fasolino , Elisa Molinari