Perfluorofullerenes: Characterization and structural aspects

Hamwi, A.; Latouche, C.; Marchand, Valérie; Dupuis, J.; Benoit, Roland

doi:10.1016/0022-3697(95)00386-x

Cited by 49 publications

(30 citation statements)

References 13 publications

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“…In the C 1 s region, there is a large peak at 284.6 eV with two small peaks at 286.0 V and 288.5 eV. These peaks can be assigned to C-C bonds [58, 59], C-N/C-O bonds [60], and C=O bonds [60, 61], respectively. The oxidized species are present since the samples were transported through the air and adventitious carbon adsorbed onto the sample.…”

Section: Resultsmentioning

confidence: 99%

Nanoparticle layer deposition for highly controlled multilayer formation based on high-coverage monolayers of nanoparticles

et al. 2016

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This paper establishes a strategy for chemical deposition of functionalized nanoparticles onto solid substrates in a layer-by-layer process based on self-limiting surface chemical reactions leading to complete monolayer formation within the multilayer system without any additional intermediate layers – nanoparticle layer deposition (NPLD). This approach is fundamentally different from previously established traditional layer-by-layer deposition techniques and is conceptually more similar to well-known atomic and molecular – layer deposition processes. The NPLD approach uses efficient chemical functionalization of the solid substrate material and complementary functionalization of nanoparticles to produce a nearly 100% coverage of these nanoparticles with the use of “click chemistry”. Following this initial deposition, a second complete monolayer of nanoparticles is deposited using a copper-catalyzed “click reaction” with the azide-terminated silica nanoparticles of a different size. This layer-by-layer growth is demonstrated to produce stable covalently-bound multilayers of nearly perfect structure over macroscopic solid substrates. The formation of stable covalent bonds is confirmed spectroscopically and the stability of the multilayers produced is tested by sonication in a variety of common solvents. The 1-, 2- and 3-layer structures are interrogated by electron microscopy and atomic force microscopy and the thickness of the multilayers formed is fully consistent with that expected for highly efficient monolayer formation with each cycle of growth. This approach can be extended to include a variety of materials deposited in a predesigned sequence on different substrates with a highly conformal filling.

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Section: Resultsmentioning

confidence: 99%

Nanoparticle layer deposition for highly controlled multilayer formation based on high-coverage monolayers of nanoparticles

et al. 2016

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“…Previously, for characterization of fluorofullerenes, the methods of chemical analysis (6,7) and X-ray photoelectron spectroscopy (x.p.s.) (8) were used. In our work, the CO 2 determination was carried out using gas chromatography, whereas the F content was determined by spectrophotometry, thus resulting in the ratio n(F)/n(C 60 ) = (48 ± 1).…”

Section: Methodsmentioning

confidence: 99%

The standard molar enthalpy of formation of fluorofullereneC60F48

Papina

Kolesov

Lukyanova

et al. 1999

The Journal of Chemical Thermodynamics

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“…Fullerenes have been investigated as they easily form graphite fluorides with relatively high fluorine content (such as C 60 F 46-54 [105,106] and C 70 F 52-56 [107]) [108]. The higher fluorine content fullerenes were derived from higher temperature reactions approaching 300 8C and were much more crystallized than the lower fluorine content counterpart.…”

Section: Lt Cf Xmentioning

confidence: 99%