Direct synthesis of stage 1-3 intercalation compounds of arsenic pentafluoride in graphite

Falardeau, E. R.; Hanlon, L. R.; Thompson, T. E.

doi:10.1021/ic50180a023

Cited by 74 publications

(13 citation statements)

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“…2b) show that the intercalation process is not a continuous one, i.e., it has a clear stepwise shape: relatively short time intervals with sharp increase in I* followed by the time intervals with 1* being nearly constant. This fact is in good agreement with literature data [1,[19][20][21][22][23][24][25] reporting that in many cases the graphite intercalation proceeds through the formation of definite intercalation stages and that the amount of intercalate inside the sample and, as a result, the current carrier concentration, increases with GIC stage index decreases. According to our X-ray diffraction data the first (last) "plateau" in experimental dependence I*(z) (Fig.…”

Section: Discussionsupporting

confidence: 92%

In situ conduction ESR and theoretical studies of graphite intercalation by nitric acid

Зиатдинов

Skrylnik

2000

Appl. Magn. Reson.

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Results of an in situ conduction electron-spin resonance (CESR) study of HNO3 molecule intercalation into highly oriented pyrolytic graphite (HOPG) plate with width being comparable with the graphite skin-depth governed by the c-axis conductivity are presented. The changes in the graphite CESR signal line shape, intensity and linewidth and the stepwise changes both of intensity and linewidth of CESR signal of intercalated sample were clearly detected during this reaction. Under the assumption that the graphite CESR signal evolution is caused by the advance of a boundary separating the intercalated and nonintercalated HOPG, the average value of spin reorientation probability during the collision of current carriers with this interface and the diffusion coefficient of nitric acid into the HOPG plate were extracted from experimental data. With the chemical potential versus intercalation time proposed by the authors for the experimental conditions, the stepwise changes of the CESR signal intensity of intercalated sample was calculated theoretically.

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Section: Discussionsupporting

confidence: 92%

In situ conduction ESR and theoretical studies of graphite intercalation by nitric acid

Зиатдинов

Skrylnik

2000

Appl. Magn. Reson.

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“…These intercalations often need to be under vacuum or inert gas . Isothermal vapor transport is another gaseous intercalation method.…”

Section: Methods Of Intercalationmentioning

confidence: 99%

“…In this technique, the host and guest are held at a temperature at which the guest species vaporizes. For example, homogenously staged intercalation compounds can be produced at room temperature, such as AsF 5 in graphite . In the resulting intercalation compound, the stage is determined either by limiting the amount of the intercalant or the time of exposure …”

Section: Methods Of Intercalationmentioning

confidence: 99%

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Intercalation of Layered Materials from Bulk to 2D

et al. 2019

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Intercalation in few‐layer (2D) materials is a rapidly growing area of research to develop next‐generation energy‐storage and optoelectronic devices, including batteries, sensors, transistors, and electrically tunable displays. Identifying fundamental differences between intercalation in bulk and 2D materials will play a key role in developing functional devices. Herein, advances in few‐layer intercalation are addressed in the historical context of bulk intercalation. First, synthesis methods and structural properties are discussed, emphasizing electrochemical techniques, the mechanism of intercalation, and the formation of a solid‐electrolyte interphase. To address fundamental differences between bulk and 2D materials, scaling relationships describe how intercalation kinetics, structure, and electronic and optical properties depend on material thickness and lateral dimension. Here, diffusion rates, pseudocapacity, limits of staging, and electronic structure are compared for bulk and 2D materials. Next, the optoelectronic properties are summarized, focusing on charge transfer, conductivity, and electronic structure. For energy devices, opportunities also emerge to design van der Waals heterostructures with high capacities and excellent cycling performance. Initial studies of heterostructured electrodes are compared to state‐of‐the‐art battery materials. Finally, challenges and opportunities are presented for 2D materials in energy and optoelectronic applications, along with promising research directions in synthesis and characterization to engineer 2D materials for superior devices.

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“…For example, uniform GICs such as AsF 5 –graphite could be prepared by directly reacting AsF 5 vapor with highly ordered pyrolytic graphite (HOPG) under an isothermal condition. [ 53 ] Similarly, K and Rb based GICs were produced. [ 54 ] The semiconducting TMDs can also be intercalated in the gas phase.…”

Section: Intercalation Methods For 2d Layered Materialsmentioning

confidence: 99%

Layered Intercalation Materials

et al. 2021

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2D layered materials typically feature strong in‐plane covalent chemical bonding within each atomic layer and weak out‐of‐plane van der Waals (vdW) interactions between adjacent layers. The non‐bonding nature between neighboring layers naturally results in a vdW gap, in which various foreign species may be inserted without breaking the in‐plane covalent bonds. By tailoring the composition, size, structure, and electronic properties of the intercalated guest species and the hosting layered materials, an expansive family of layered intercalation materials may be produced with highly variable compositional and structural features as well as widely tunable physical/chemical properties, invoking unprecedented opportunities in fundamental studies of property modulation and potential applications in diverse technologies, including electronics, optics, superconductors, thermoelectrics, catalysis, and energy storage. Here, the principles and protocols for various intercalation methods, including wet chemical intercalation, gas‐phase intercalation, electrochemical intercalation, and ion‐exchange intercalation, are comprehensively reviewed and how the intercalated species alter the crystal structure and the interlayer coupling of the host 2D layered materials, introducing unusual physical and chemical properties and enabling devices with superior performance or unique functions, is discussed. To conclude, a brief summary on future research opportunities and emerging challenges in the layered intercalation materials is given.

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Direct synthesis of stage 1-3 intercalation compounds of arsenic pentafluoride in graphite

Cited by 74 publications

References 0 publications

In situ conduction ESR and theoretical studies of graphite intercalation by nitric acid

In situ conduction ESR and theoretical studies of graphite intercalation by nitric acid

Intercalation of Layered Materials from Bulk to 2D

Layered Intercalation Materials

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