Super growth of vertically-aligned carbon nanofibers and their field emission properties

Kang, JungHo; Shin, Dong Hoon; Yun, Ki Nam; Mas’ud, Felisita A; Lee, Cheol Jin; Kim, Myung Jong

doi:10.1016/j.carbon.2014.07.054

Cited by 19 publications

(5 citation statements)

References 35 publications

(48 reference statements)

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“…Carbon nanofibers (CNF) are one of the most important sorts of carbon nanomaterials (CNM), which is being extensively studied in recent years. Due to their advanced physicochemical and mechanical properties, carbon nanofibers attract much attention for application in various fields of nanotechnology, ranging from high-strength composites to energy storage materials [1, 2]. Catalytic chemical vapor deposition (CCVD) is the most widely used method for CNM synthesis, since it is capable of providing high yield of carbon product, good selectivity and opportunity for scale-up production [1, 2, 3, 4].…”

Section: Introductionmentioning

confidence: 99%

“…Due to their advanced physicochemical and mechanical properties, carbon nanofibers attract much attention for application in various fields of nanotechnology, ranging from high-strength composites to energy storage materials [1, 2]. Catalytic chemical vapor deposition (CCVD) is the most widely used method for CNM synthesis, since it is capable of providing high yield of carbon product, good selectivity and opportunity for scale-up production [1, 2, 3, 4]. Implementation of the catalytic CVD allows one to tune the process parameters for production of vapor-grown carbon nanofibers of various structural types and different degree of graphitization [4].…”

Section: Introductionmentioning

confidence: 99%

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Effect of Mo on the catalytic activity of Ni-based self-organizing catalysts for processing of dichloroethane into segmented carbon nanomaterials

Bauman

Rudneva

Mishakov

et al. 2019

Heliyon

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A series of micro-disperse Ni-Mo alloys with the sponge-like structure was prepared by a simultaneous precipitation method followed by sintering of the sediment in H2 atmosphere at 800 °C. According to XRD data, the formation of single-phase solid solution Ni1-xMox took place for the samples with Mo content of 0.6–8.3 wt.%. Synthesized samples were studied in a process of the catalytic CVD of C2H4Cl2 at 550–700 °C. In situ kinetic studies of carbon deposition process were carried out in a flow gravimetric setup equipped with McBain balances. An interaction of Ni-Mo alloys with C2H4Cl2 is accompanied by their rapid disintegration with formation of disperse active particles catalyzing the growth of carbon nanomaterials (CNM). The strong boosting effect of Mo on the catalytic performance of Ni was revealed. The maximum yield of CNM product (8.3 wt.% Mo, 600 °C, 120 min) was as high as 45 g/gM. The study on effect of the reaction temperature on the CNM yield allowed one to define an optimal temperature regime. The impact of Mo concentration upon the morphology, structural features and textural properties of the produced carbon fibers was investigated by means of SEM, TEM, Raman spectroscopy and low-temperature nitrogen adsorption. The role of chemisorbed chlorine species in a pulse-to-pulse regime of the segmented carbon filaments formation was discussed.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of Mo on the catalytic activity of Ni-based self-organizing catalysts for processing of dichloroethane into segmented carbon nanomaterials

Bauman

Rudneva

Mishakov

et al. 2019

Heliyon

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“…For instance, Kang et al reported the super-growth of vertically aligned CNFs on Pd thin film through a thermal CVD method. 40 It was found that CNFs with a diameter of about 50 nm were vertically grown on the substrate, as shown in Fig. 2a and b.…”

Section: Cvd Fabricationmentioning

confidence: 90%

Carbon nanofiber-based three-dimensional nanomaterials for energy and environmental applications

et al. 2020

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“…1b, c). The process of carbon deposition over the palladium catalyst takes place when palladium is exposed to a flow of carbon containing gases at elevated temperatures [4][5][6][7]. In literature, one can find a number of theories describing the mechanism of carbon growth over metal catalysts.…”

Section: Resultsmentioning

confidence: 99%

Electrochemical properties of exfoliated graphite/nickel/palladium/carbon fibers composite

Krawczyk

Rozmanowski

2018

Ionics

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The goal of this work was to design a alternative material for hydrogen sorption/desorption by electrochemical devices. The investigations were focused on EG/Ni/Pd/C (exfoliated graphite/nickel/palladium/carbon fibers) composite. The deposition of carbon fibers differing in diameter and length over the EG/Ni/Pd significantly changes the electrochemical properties of the examined composite. SEM (scanning electron microscopy) analysis equipped with EDS (energy-dispersive spectrometer) detector revealed that external part of the investigated composite may involves palladium carbide.

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Super growth of vertically-aligned carbon nanofibers and their field emission properties

Cited by 19 publications

References 35 publications

Effect of Mo on the catalytic activity of Ni-based self-organizing catalysts for processing of dichloroethane into segmented carbon nanomaterials

Effect of Mo on the catalytic activity of Ni-based self-organizing catalysts for processing of dichloroethane into segmented carbon nanomaterials

Carbon nanofiber-based three-dimensional nanomaterials for energy and environmental applications

Electrochemical properties of exfoliated graphite/nickel/palladium/carbon fibers composite

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