Characteristics of meso-carbon microbeads separated from pitch

Yamada, Yoshio; Imamura, Takeshi; Kakiyama, Hitoo; Honda, Hidemasa; Oi, S; Fukuda, Kenji

doi:10.1016/0008-6223(74)90072-4

Cited by 99 publications

(15 citation statements)

References 13 publications

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“…During the course of the preparation of coke from pitch, the formation of spherical particles with anisotropic textures in the isotropic molten pitch matrix was reported -these spherical particles have been called mesophase spheres (Brooks and Taylor 1968). These mesophase spheres have been separated through dissolution of the isotropic pitch matrix and have been referred to as mesocarbon microbeads (MCMB) (Yamada et al 1974). They are now used as an important anode material for lithium ion rechargeable batteries (Tatsumi et al 1995) and produced on an industrial scale.…”

Section: Spherical Morphology In Carbon Materialsmentioning

confidence: 99%

Glass-Like Carbon Spheres — Activation, Porosity and Application Possibilities

Inagaki

Park

Skowroński

et al. 2008

Adsorption Science & Technology

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ABSTRACT:A brief review on spherical carbons, including fullerenes and related spherical particles, is first provided, followed by a review of the results on air activation, porosity and applications focused on glass-like carbon spheres derived from phenolic resin spheres. Kinetic studies of the oxidation in air provide a fundamental understanding of activation process of glass-like carbon spheres. On the basis of the results, a new activation procedure, viz. two-step activation, is proposed, which provides ca. 10% higher oxidation yield in obtaining a comparative pore structure. Some possibilities for applications of these glass-like carbon spheres are also described, such as the adsorption/desorption of CO 2 gas and chlorinated methanes, the adsorption of organic molecules from their aqueous solutions, and the provision of electrodes for electric double layer capacitors and lithium ion rechargeable batteries.

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Section: Spherical Morphology In Carbon Materialsmentioning

confidence: 99%

Glass-Like Carbon Spheres — Activation, Porosity and Application Possibilities

Inagaki

Park

Skowroński

et al. 2008

Adsorption Science & Technology

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“…In order to produce MCMB, pitch is heated for a short period or at lower temperatures to prevent MCMB from coalescing during pyrolysis. Thus, the MCMB yield in conventional manufacture is generally low, only 5-20 wt.% of the pyrolysated pitch [12]. The key factor to get MCMB with high yield is to avoid formation of the bulk mesophase causing by the coalescence of MCMB.…”

Section: Introductionmentioning

confidence: 99%

Efficient preparation of mesocarbon microbeads by pyrolysis of coal-tar pitch in the presence of rosin

Yang

Lin

Huang

et al. 2011

Journal of Analytical and Applied Pyrolysis

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“…Among three alternatives, the method using MCMBs is especially easy to produce high density due to the spherical shape of the MCMBs. In particular, since 1973, the MCMBs has been frequently used by many researchers as precursors of high-density high-strength carbon blocks and rechargeable Li-ion batteries 9 – 17 .…”

Section: Introductionmentioning

confidence: 99%

Improving the mechanical properties of a high density carbon block from mesocarbon microbeads according to oxidative stabilization

Kim

Lee

et al. 2018

Sci Rep

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In this study, a high density carbon block without binder was manufactured by mesocarbon microbeads (MCMB) from coal tar pitch. To develop the high density carbon block without a binder, MCMBs were oxidized at different levels of temperature. To verify the effect of oxygen content in the carbonized carbon block (CCB), an elementary analysis (EA) and X-ray photoelectron spectroscopy (XPS) were performed. The morphological and mechanical properties of the CCBs were investigated by using scanning electron microscopy (SEM), a shore hardness test, and a flexural strength evaluation. The results revealed that the oxygen content increased with stabilization temperature and the physical properties of the CCBs were considerably improved via oxidative stabilization. Small cracks between MCMB particles were observed in the CCBs that were stabilized over 250 °C. From the results of this study, the CCB from MCMBs stabilized at 200 °C for 1 h showed optimum mechanical properties and high density.

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Characteristics of meso-carbon microbeads separated from pitch

Cited by 99 publications

References 13 publications

Glass-Like Carbon Spheres — Activation, Porosity and Application Possibilities

Glass-Like Carbon Spheres — Activation, Porosity and Application Possibilities

Efficient preparation of mesocarbon microbeads by pyrolysis of coal-tar pitch in the presence of rosin

Improving the mechanical properties of a high density carbon block from mesocarbon microbeads according to oxidative stabilization

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