Cluster structure of fullerene-containing soot and C60 fullerene powder

Gorelik, Olga; Dyuzhev, G. A.; Новиков, Д. В.; Oichenko, V. M.; Fursei, G. N.

doi:10.1134/1.1325035

Cited by 10 publications

(2 citation statements)

References 9 publications

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“…Models predict that diffusion-limited aggregation (DLA) and reactionlimited aggregation (RLA) in three dimensions (3D) yield objects with fractal dimensions of 1.8 and 2.1, respectively [2][3][4]. Experiments on the aggregation of aqueous gold colloids [5] and C60 fullerene [6] in 3D yield fractal dimensions of 1.75 and 1.8, corresponding to DLA. Measurements of the growth rate of the radius and fractal dimension of buckyball clusters in several solvents have also been performed [7].…”

Section: Introductionmentioning

confidence: 98%

Nanoparticle Aggregation and Fractal Growth in Fluid Smectic Membranes

Meienberg

Malinina

Nguyen

et al. 2015

Molecular Crystals and Liquid Crystals

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We observe directly the diffusion and aggregation of buckyball clusters dispersed in thin, freely-suspended films of smectic liquid crystal using reflected light microscopy. The buckyballs at early times are barely resolvable, nanoscale clusters, which diffuse stochastically in the film. Clusters eventually coalesce to form micron-scale, fractal aggregates whose effective radius increases approximately linearly with time, so that after several days, millimeter-size fractals extend across the entire film. The measured fractal dimension of these final networks suggests that the aggregation of the buckyball clusters in the film is a diffusion-limited process.

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Section: Introductionmentioning

confidence: 98%

Nanoparticle Aggregation and Fractal Growth in Fluid Smectic Membranes

Meienberg

Malinina

Nguyen

et al. 2015

Molecular Crystals and Liquid Crystals

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“…There is a need for more studies that address the question on the microphysical nature and the optical properties of particles in snow and ice. In a large-area study on lightabsorbing impurities in Arctic snow, Doherty et al (2010) applied the integrating sandwich with integrating sphere technique (ISSW; Grenfell et al, 2011) to measure the snow mass-specific spectral absorption cross section, σ abs , on filter samples. The ISSW is an improved version of the original integrating plate (IP) filter method that was used in the pioneering work of Clarke and Noone (1985) to determine the BC in the Arctic snowpack.…”

Section: Introductionmentioning

confidence: 99%

Specifying the light-absorbing properties of aerosol particles in fresh snow samples, collected at the Environmental Research Station Schneefernerhaus (UFS), Zugspitze

Schnaiter¹,

Linke²,

Ibrahim³

et al. 2019

Atmos. Chem. Phys.

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Abstract. Atmospheric aerosol particles like mineral dust, volcanic ash and combustion particles can reduce Earth's snow and ice albedo considerably even by very small amounts of deposited particle mass. In this study, a new laboratory method is applied to measure the spectral light absorption coefficient of airborne particles that are released from fresh snow samples by an efficient nebulizing system. Three-wavelength photoacoustic absorption spectroscopy is combined with refractory black carbon (BC) mass analysis to determine the snow mass-specific and BC mass-specific absorption cross sections. Fullerene soot in water suspensions are used for the characterization of the method and for the determination of the mass-specific absorption cross section of this BC reference material. The analysis of 31 snow samples collected after fresh snowfall events at a high-altitude Alpine research station reveals a significant discrepancy between the measured snow mass-specific absorption cross section and the cross section that is expected from the BC mass data, indicating that non-BC light-absorbing particles are present in the snow. Mineral dust and brown carbon (BrC) are identified as possible candidates for the non-BC particle mass based on the wavelength dependence of the measured absorption. For one sample this result is confirmed by environmental scanning electron microscopy and by single-particle fluorescence measurements, which both indicate a high fraction of biogenic and organic particle mass in the sample.

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Fullerene Formation In Arc Discharge

Alekseyev¹,

Dyuzhev²

2002

Hydrogen Materials Science and Chemistry of Metal Hydrides

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Cluster structure of fullerene-containing soot and C60 fullerene powder

Cited by 10 publications

References 9 publications

Nanoparticle Aggregation and Fractal Growth in Fluid Smectic Membranes

Nanoparticle Aggregation and Fractal Growth in Fluid Smectic Membranes

Specifying the light-absorbing properties of aerosol particles in fresh snow samples, collected at the Environmental Research Station Schneefernerhaus (UFS), Zugspitze

Fullerene Formation In Arc Discharge

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