Topic
Graphite intercalation compound
About: Graphite intercalation compound is a research topic. Over the lifetime, 783 publications have been published within this topic receiving 14015 citations. The topic is also known as: GIC.
Papers published on a yearly basis
Papers
TL;DR: In this article, the authors focus on graphite and describe its various modifications for use as modified fillers in polymer matrices for creating polymer-carbon nanocomposites, which is the basic building block of graphite.
1,250 citations
TL;DR: This work shows that formation of GO from graphite constitutes three distinct independent steps, and that the reaction can be stopped at each step, and the corresponding intermediate products can be isolated, characterized, and stored under appropriate conditions.
Abstract: Despite intensive research, the mechanism of graphene oxide (GO) formation remains unclear. The role of interfacial interactions between solid graphite and the liquid reaction medium, and transport of the oxidizing agent into the graphite, has not been well-addressed. In this work, we show that formation of GO from graphite constitutes three distinct independent steps. The reaction can be stopped at each step, and the corresponding intermediate products can be isolated, characterized, and stored under appropriate conditions. The first step is conversion of graphite into a stage-1 graphite intercalation compound (GIC). The second step is conversion of the stage-1 GIC into oxidized graphite, which we define as pristine graphite oxide (PGO). This step involves diffusion of the oxidizing agent into the preoccupied graphite galleries. This rate-determining step makes the entire process diffusive-controlled. The third step is conversion of PGO into conventional GO after exposure to water, which involves hydroly...
847 citations
TL;DR: The crystal structure has been completely determined showing that CaC6 is the only member of the MC6, metal-graphite compounds that has rhombohedral symmetry and the occurrence of superconductivity in the bulk sample at 11.5 K is clearly shown.
Abstract: We have obtained bulk samples of the graphite intercalation compound, CaC6, by a novel method of synthesis from highly oriented pyrolytic graphite. The crystal structure has been completely determined showing that it is the only member of the MC6, metal-graphite compounds that has rhombohedral symmetry. We have clearly shown the occurrence of superconductivity in the bulk sample at 11.5 K, using magnetization measurements.
457 citations
TL;DR: In this article, a modified Staudenmaier method and an electrochemical one were used to investigate the formation process of graphite oxides, and the results strongly support the (C 2 F ) n -type structure model of graphs.
431 citations
TL;DR: When a graphite intercalation compound is heated past a critical temperature, a large expansion along the c-direction occurs, giving the compound a puffed-up appearance as discussed by the authors.
Abstract: When a graphite intercalation compound [1] is heated past a critical temperature, a large expansion along the c-direction occurs, giving the compound a puffed-up appearance. This phenomenom is known as exfoliation. Ubbelohde [2] observed that graphite-Br2 exfoliated at 350°C from 3 mm to approximately 35 mm. Exfoliation has also been observed in graphite-FeC13 [3], graphite-A1C13 [4], and graphite intercalated with a mixture of HNO3 and H2SO4 [4]. The exfoliation of graphite-FeC13 has been used to manufacture Grafoil [5]; the exfoliation of graphite-(HNO3+H2SO) has been used for making a thermal insulator for molten metals [6]. In spite of the numerous practical applications of exfoliation, relatively little work has been done to understand and characterize this unusual phenomenon.
428 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2024 | 2 |
| 2023 | 1 |
| 2022 | 8 |
| 2021 | 15 |
| 2020 | 14 |
| 2019 | 25 |