Selective synthesis of double-wall carbon nanotubes by CCVD of acetylene using zeolite supports

Hiraoka, Takehiro; Kawakubo, Tomoju; Kimura, Junichi; Taniguchi, Risa; Okamoto, Atsuto; Okazaki, Toshiya; Sugai, Toshiki; Ozeki, Yuji; Yoshikawa, Masahito; Shinohara, Hisanori

doi:10.1016/j.cplett.2003.10.123

Cited by 113 publications

(80 citation statements)

References 20 publications

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“…It is possible to control the density of the metal nanoparticle by changing the ratio of the amount of metal nanoparticles and the supporting material. Various binary catalysts were investigated by Hiraoka et al [98] for DWNT growth over Co-Fe, Co-Ni, Co-V, Co-Cr and Co-Mn supported on a zeolite substrate. The Co-Fe binary catalyst yielded a high selectivity of DWNTs, whereas other catalysts exhibit a low yield of DWNTs.…”

Section: The Catalytic Chemical Vapor Deposition Methodsmentioning

confidence: 99%

A Review of Double-Walled and Triple-Walled Carbon Nanotube Synthesis and Applications

Fujisawa

Kim

et al. 2016

Applied Sciences

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Double-and triple-walled carbon nanotubes (DWNTs and TWNTs) consist of coaxially-nested two and three single-walled carbon nanotubes (SWNTs). They act as the geometrical bridge between SWNTs and multi-walled carbon nanotubes (MWNTs), providing an ideal model for studying the coupling interactions between different shells in MWNTs. Within this context, this article comprehensively reviews various synthetic routes of DWNTs' and TWNTs' production, such as arc discharge, catalytic chemical vapor deposition and thermal annealing of pea pods (i.e., SWNTs encapsulating fullerenes). Their structural features, as well as promising applications and future perspectives are also discussed.

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Section: The Catalytic Chemical Vapor Deposition Methodsmentioning

confidence: 99%

A Review of Double-Walled and Triple-Walled Carbon Nanotube Synthesis and Applications

Fujisawa

Kim

et al. 2016

Applied Sciences

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“…Two diffraction peaks at 2h = 26°and 43°, indexed to 002 and 100 diffractions of graphitic carbon [13], are observed in all GSC samples, implying the formation of graphitic structure. The 002 d-spacing is about 0.337 nm, very close to the 002 d-spacing of graphite (0.335 nm) [14]. With increasing carbonization temperatures from 700 to 1000°C, the diffraction intensity of 002 increases gradually, which indicates that GCS-1000 possess the highest degree of graphitization.…”

Section: Resultsmentioning

confidence: 91%

Synthesis of graphitic carbon spheres for enhanced supercapacitor performance

Chen

Xing

et al. 2015

J Mater Sci

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Graphitic carbon spheres (GCS) with uniform particle diameter have been synthesized by K 3 [Fe(CN) 6 ] catalytic graphitization of resorcinol/formaldehyde (RF) precursors. XRD and Raman spectra reveal that highly graphitic structure is developed by catalytic graphitization at 1000°C successfully. The catalytic graphitization by K 3 [Fe(CN) 6 ] maintains the spherical morphology of the RF resins, resulting in GCS-1000 (1000 = catalytic graphitization temperature of 1000°C) with graphitic spherical morphology (625 nm in diameter). Besides conventionally microporous structure of carbonized RF resins, macropores with the diameter about 100 nm are yielded from the removal of iron particles, leading to hierarchical micro/macroporous structure and high surface area (381 m 2 g -1 ). With a high degree of graphitization and prominent hierarchical porous structure, GCS exhibit a high capacitance of 155 F g -1 and a good electrochemical stability, which make this type of GCS promising candidates as electrode materials for supercapacitors.

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“…DWNTs, with a coaxial structure, occupy a position between MWNTs and SWNTs, and have attracted much attention because they are expected to exhibit interesting structural and electronic properties. [6] In light of this, various synthetic methods of producing DWNTs have been published: arc discharge, [7] CVD, [8][9][10] and thermal treatment of fullerene peapods. [11,12] This latter method usually generates mixtures of DWNTs and SWNTs because the incomplete filling of fullerenes in the core of the SWNTs results in shortened inner tubes.…”

mentioning

confidence: 99%

Fabrication of High‐Purity, Double‐Walled Carbon Nanotube Buckypaper

Kim

Muramatsu

Hayashi

et al. 2006

Chemical Vapor Deposition

107

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In the last decade, one-dimensional carbon nanotubes have attracted the attention of a wide range of scientists due to their unique morphology and nanometer-size scale, as well as their versatile physical and chemical properties.[1-4] Their intrinsic properties make them useful in a wide range of potential applications including nanocomposites, energy-storage and energy-conversion systems, sensors, field-emission displays and radiation sources, nanodevices, and probes.

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Selective synthesis of double-wall carbon nanotubes by CCVD of acetylene using zeolite supports

Cited by 113 publications

References 20 publications

A Review of Double-Walled and Triple-Walled Carbon Nanotube Synthesis and Applications

A Review of Double-Walled and Triple-Walled Carbon Nanotube Synthesis and Applications

Synthesis of graphitic carbon spheres for enhanced supercapacitor performance

Fabrication of High‐Purity, Double‐Walled Carbon Nanotube Buckypaper

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