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Using density functional theory calculations, we have investigated the structural, energetic, and electronic properties of ternary graphite intercalation compounds (GICs) containing alkali atoms (AM) and normal alkylamine molecules (nC$x$),…

Materials Science · Physics 2017-09-20 Gum-Chol Ri , Chol-Jun Yu , Jin-Song Kim , Song-Nam Hong , Un-Gi Jong , Mun-Hyok Ri

Up to now, many guest atoms/molecules/ions have been successfully synthesized into graphite to form the various compounds. For example, alkali-atom graphite intercalation compounds are verified to reveal the stage-n structures, including…

Materials Science · Physics 2021-05-05 Wei-Bang Li , Ming-Hsiu Tsai , Shih-Yang Lin , Kuang-I Lin , Ming-Fa Lin

The influence of graphene on the assembly of intercalated material is studied using low-temperature scanning tunneling microscopy. Intercalation of Pt under monolayer graphene on Pt(111) induces a substrate reconstruction that is…

Mesoscale and Nanoscale Physics · Physics 2019-02-28 Johannes Halle , Nicolas Néel , Jörg Kröger

Interlayer space in graphite is impermeable to ions and molecules, including protons. Its controlled expansion would find several applications in desalination, gas purification, high-density batteries, etc. In the past, metal intercalation…

Mesoscale and Nanoscale Physics · Physics 2022-01-26 Lalita Saini , Siva Sankar Nemala , Aparna Rathi , Suvigya Kaushik , Gopinadhan Kalon

The interaction of metals with carbon materials, specifically with graphene, is of importance for various technological applications. In particular, intercalation of alkali metals is believed to provide a means for tuning the electronic…

Mesoscale and Nanoscale Physics · Physics 2023-01-26 Marianna Lorenzo , Conrad Escher , Tatiana Latychevskaia , Hans-Werner Fink

Many intercalation compounds possess layered structures or inter-penetrating lattices that enable phase separation into three or more stable phases, or "stages," driven by competing intra-layer and inter-layer forces. While these structures…

Chemical Physics · Physics 2017-06-27 Raymond B. Smith , Edwin Khoo , Martin Z. Bazant

The diversified essential properties of the stage-n graphite alkali-intercalation compounds are thoroughly explored by the first-principles calculations. According to their main features, the lithium and non-lithium materials might be quite…

Materials Science · Physics 2020-06-23 Wei-bang Li , Ngoc Thanh Thuy Tran , Shih-yang Lin , Ming-Fa Lin

The process of anion intercalation in graphite and its reversibility plays a crucial role in the next generation energy-storage devices. Herein the reaction mechanism of the aluminum graphite dual ion cell by operando X-ray scattering from…

Materials Science · Physics 2024-02-21 Giorgia Greco , Giuseppe Antonio Elia , Daniel Hermida-Merino , Robert Hahn , Simone Raoux

Modeling layered intercalation compounds from first principles poses a problem, as many of their properties are determined by a subtle balance between van der Waals interactions and chemical or Madelung terms, and a good description of van…

Materials Science · Physics 2014-10-30 E. Hazrati , G. A. de Wijs , G. Brocks

The electrolyte intercalation mechanism facilitates the insertion/extraction of charge into the electrode material in rechargeable batteries. Aluminum fluoride (AlF$_{3}$) has been used as an electrolyte in rechargeable aluminum batteries…

Properties of many layered materials, including copper- and iron-based superconductors, topological insulators, graphite and epitaxial graphene can be manipulated by inclusion of different atomic and molecular species between the layers via…

Intercalation of atomic species through epitaxial graphene layers began only a few years following its initial report in 2004. The impact of intercalation on the electronic properties of the graphene is well known; however, the intercalant…

The cointercalation of sodium with the solvent organic molecule into graphite can resolve difficulty of forming the stage-I Na-graphite intercalation compound, which is a predominant anode of Na-ion battery. To clarify the mechanism of such…

Materials Science · Physics 2017-09-26 Chol-Jun Yu , Song-Bok Ri , Song-Hyok Choe , Gum-Chol Ri , Yun-Hyok Kye , Sung-Chol Kim

We report the structural and electronic properties of an artificial graphene/Ni(111) system obtained by the intercalation of a monoatomic layer of Ni in graphene/Ir(111). Upon intercalation, Ni grows epitaxially on Ir(111), resulting in a…

We show using scanning tunneling microscopy, spectroscopy, and ab initio calculations that several intercalation structures exist for Na in epitaxial graphene on SiC(0001). Intercalation takes place at room temperature and Na electron-dopes…

Mesoscale and Nanoscale Physics · Physics 2011-12-01 Andreas Sandin , Thushari Jayasekera , J. E. , Rowe , Ki Wook Kim , M. Buongiorno Nardelli , Daniel B. Dougherty

Electronic decoupling of graphene from metallic and semiconducting substrates via intercalation of different species is one of the widely used approaches in studies of graphene. In the present work the modification of the electronic and…

Materials Science · Physics 2021-12-24 Yong Zhou , Roman Ovcharenko , Beate Paulus , Yuriy Dedkov , Elena Voloshina

This work aims to study the insertion of AlCl_4^- anion in the crystalline structure of oriented pyrolytic graphite (PG) at the point of view of the anion itself. The electronic and atomic structures of the anion at different intercalation…

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…

Materials Science · Physics 2008-06-19 Manuel Cobian , Jorge Iniguez

In the quest for better energy storage solutions, the role of designing effective electrodes is crucial. Previous research has shown that using materials like single-side fluorinated graphene can improve the stability of ion insertion in…

Materials Science · Physics 2024-08-28 Yu-Hsiu Lin , Jose L. Mendoza-Cortes

The intercalation of an oxide barrier between graphene and its metallic substrate for chem- ical vapor deposition is a contamination-free alternative to the transfer of graphene to dielectric supports, usually needed for the realization of…

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