Intercalation dans le graphite du sodium associé à des ions peroxyde

Gadi, M. El; Hérold, A.; Hérold, Claire; Marêché, J.F.; Lagrange, Philippe

doi:10.1006/jssc.1997.7376

Cited by 15 publications

(7 citation statements)

References 18 publications

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“…205,206 Pure stage-1 sodium GICs can be synthesized from decomposition of the so-called "superdense" GIC 204 NaC 2 (formed at 40 kPa), and ternary stage-1 sodium GICs may be formed through use of a cointercalating solvent, 207 heavy group 1 metal, 208 or trace oxygen. 209 The group 2 alkali earth metals calcium, strontium, and barium readily intercalate graphite, 210 while magnesium is more challenging (analogously to sodium) but readily forms ternary intercalation compounds alongside a group 1 metal. 208 While beryllium metal can intercalate graphite, it rapidly decomposes to give beryllium carbide.…”

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confidence: 99%

Charged Carbon Nanomaterials: Redox Chemistries of Fullerenes, Carbon Nanotubes, and Graphenes

et al. 2018

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Since the discovery of buckminsterfullerene over 30 years ago, sp 2 -hybridised carbon nanomaterials (including fullerenes, carbon nanotubes, and graphene) have stimulated new science and technology across a huge range of fields. Despite the impressive intrinsic properties, challenges in processing and chemical modification continue to hinder applications. Charged carbon nanomaterials (CCNs), formed via the reduction or oxidation of these carbon nanomaterials, facilitate dissolution, purification, separation, chemical modification, and assembly. This approach provides a compelling alternative to traditional damaging and restrictive liquid phase exfoliation routes. The broad chemistry of CCNs not only provides a versatile and potent means to modify the properties of the parent nanomaterial but also raises interesting scientific issues. This review focuses on the fundamental structural forms: buckminsterfullerene, single-walled carbon nanotubes, and single-layer graphene, describing the generation of their respective charged nanocarbon species, their interactions with solvents, chemical reactivity, specific (opto)electronic properties, and emerging applications. CONTENTS

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confidence: 99%

Charged Carbon Nanomaterials: Redox Chemistries of Fullerenes, Carbon Nanotubes, and Graphenes

et al. 2018

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“…The partial commensurability means that, even if the intercalated sheet stays no-commensurate, it exhibits a constant orientation angle between intercalated sub-lattice and the graphene one. It is the case of the graphite-Na 2 O 2 compound [14], for which the value of this angle is 29.3°. Such a geometric feature should be considered as a commensurability frustration phenomenon.…”

Section: Electron Donorsmentioning

confidence: 98%

Exhaustive inventory of 2D unit cells commensurate with honeycomb graphene structure

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Fauchard

Cahen

et al. 2015

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“…Large, positive shifts would be expected if sodium metallic inclusions were formed or even if the sodium atoms were inserted between the graphene planes, giving rise to intercalation compounds [31][32][33][34]. In fact, the formation of sodium intercalation compounds with carbon materials is not as likely as in the case of heavier alkaline elements such as K and Cs, based on previous reports on the chemical affinity of sodium for such reactions [31,35]. On the other hand, diamagnetic Na + ions interacting directly with p electrons of phenyl rings present a large upfield shift, close to the value expected for the free Na + ion [30,36].…”

Section: Article In Pressmentioning

confidence: 97%