Sodium intercalation chemistry in graphite request pdf. The intercalation compounds graphite bisulfate and graphite perchlorate can be prepared by treating graphite with strong oxidizing agents in the presence of strong acids. The largest effect on the compositiondependence of the free energy of intercalation comes from the enthalpy term in the free energy. A snapshot of a threedimensional dendrite in pure ni with a cubic interfacial energy anisotropy obtained from a phasefield simulation with thermal noises 72 courtesy. Preparation of graphite intercalation compounds containing oligo and polyethers hanyang zhang a and michael m. Download pdf 1039k download meta ris compatible with endnote, reference manager, procite. The first volume addressed the structural and dynamical aspects of graphite intercalation compounds, together with the chemistry and intercalation of new compounds. Figure 5 shows a range of the enthalpy of intercalation of nearly 100. Various heat treatments were then used to test the stability of these compounds, resulting in reaction prooucts b3 and a 2 to e2. The electromagnetic absorption of a naethylenediamine. Thermal decomposition of ternary sodium graphite intercalation. Study fecl3 cocl2 graphite compounds by heavy vapour. This paper will present intercalation compounds of graphite from the point of view of a quest for a synthetic material of high electrical conductivity. The influence of three different intercalation methods on the properties of exfoliated graphite xandra van heerden submitted in partial fulfilment of the requirements for the degree masters degree chemical.
What is the difference between intercalation and doping. The progress of materials science depends on the development of novel materials and the development of novel experimental techniques. Citeseerx document details isaac councill, lee giles, pradeep teregowda. Essential properties of lili graphite intercalation compounds arxiv. Interestingly, whereas the metastable highpressure phase c 2. Download fulltext pdf synthesis of first stage graphite intercalation compounds with fluorides article pdf available in journal of fluorine chemistry 245. Ternary intercalation compound of graphite with aluminum. Graphite intercalation compounds are synthetic metals formed by inserting layers of atoms or molecules of a guest chemical species between the layers of carbon atoms that make up graphite. Nomenclature and terminology of graphite intercalation compounds pdf. They have specific structural features based on the alternating stacking of. Intercalation is when a molecule or ion inserts reversibly between the layers of a compound like potassium ions between graphite layers. Graphite intercalation compounds are formed by inserting guest molecules or ions between sp2bonded carbon layers. The exfoliation involves a large expansion by as many as several hundred times along the caxis. Mg, ca, sr, ba in graphite intercalation compounds wiley online.
Many of these materials are highly anisotropic, so that. Graphite intercalation compounds 247 tion to the question of the bonding in these compounds by measuring the electrical conductivity of potassium graphite of various compositions 48. Graphite intercalation compounds tend to exfoliate upon heating. The properties of graphite intercalation compounds gics are discussed with respect to possible applications. Theory of superconductivity in graphite intercalation compounds. Electrons in isolated graphene layers are a twodimensional gas of massless dirac fermions. Superconductivity in the intercalated graphite compounds. Layered hostpolymer nanocomposites comprising polymeric guests between inorganic sheets have been prepared with many inorganic hosts, but there is limited evidence for the incorporation of polymeric. Ferric chloride graphite intercalation compounds prepared. This framework electrode design presents new insight into developing dendritefree alkali metal anodes. Synthesis of graphite intercalation compounds by a soft. Gic made from graphite flakes was used to study the microwave absorption performance of a gic for the first time.
In realistic devices, however, the electronic properties are. New chemical synthesis strategies have been investigated for the preparation of acceptortype graphite intercalation compounds gics with. Graphite intercalation compounds are a new class of electronic materials that are classified as graphitebased host guest systems. Pdf synthesis of intercalation compound of graphite and. Electronic structure of superconducting graphite intercalate. Intercalation thresholds have been investigated for compound formation by nearideal graphite, with the molecules k, br 2, icl, alcl 3, hno 3, and clso 3 h. Synthesis of first stage graphite intercalation compounds. Superconductivity in the intercalated graphite compounds c. Graphite intercalation compounds and applications 1st edition. About a handred kinds of intercalants are listed in the case of singlespecies intercalation.
Preparation of graphite intercalation compounds containing. Therefore, many substances, what is called intercalates, can enter into the. The influence of three different intercalation methods on. A graphite intercalation compound associated with liquid nak. Applications of graphite intercalation compounds journal.
Properties of novel cvd graphite fibers and their bromine. Five families of intercalates give high electrical conductivity to gics. Intercalation overpotentials for compound formation by. Synthesis of intercalation compound of graphite and its.
This second volume provides an uptodate status report from expert researchers on the transport, magnetic, elec tronic and optical properties ofthis unique class of materials. Graphite intercalation compounds gics are complex materials having a formula cxm where. The first superconducting graphite intercalation compound to be reported 7,8 was c 8 k, which has a transition temperature of 0. These compounds are interesting as synthetic metals and as precursors to graphene. Graphite intercalation compounds containing fluoroanions. Abstract graphite intercalation compounds gics are often used to produce exfoliated or functionalised graphene related materials grms in. Intercalation compounds an overview sciencedirect topics. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. One famous intercalation host is graphite, which intercalates potassium as a guest. Kovtyukhova1, yuanxi wang2, ayse berkdemir2, rodolfo cruzsilva4, mauricio terrones2, vincenth. Nonoxidative intercalation and exfoliation of graphite by.
Download limit exceeded you have exceeded your daily download allowance. Properties of novel cvd graphite fibers and their bromine intercalation compounds james r. Under certain conditions, the graphite intercalation. Classification and discussion of the processes from new experimental data relative to graphiteacid compounds p. Synthesis of intercalation compound of graphite and its characterisation. Synthesis of graphite intercalation compounds by a soft process. Polyethers preparation of graphite intercalation compounds. Media in category graphite intercalation compounds the following 6 files are in this category, out of 6 total. Enter your mobile number or email address below and well send you a link to download the free kindle app.