Synthesis of boron-doped double-walled carbon nanotubes by the catalytic decomposition of tetrahydrofuran and triisopropyl borate

Lyu, S.C.; Han, Jong Hun; Shin, Kwonwoo; Sok, Junghyun

doi:10.1016/j.carbon.2010.12.012

Cited by 62 publications

(45 citation statements)

References 55 publications

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“…The morphology of all the samples is similar but the density of the filaments decreases as the triisopropyl borate precursor concentration is increased. A highly resolved magnification of the SEM images shows that the CNTs have an average diameters [17]. Concerning the residue of Fe-Mo catalyst we should note that Fe is a magnetic material and as such can induce magnetism [18,21,22] However, according to the TEM analysis the metal catalyst is at undetectable levels so we can say that our purification procedure was very successful in removing catalysts and other impurities.…”

Section: Structure and Morphologymentioning

confidence: 83%

“…The microstructures of the printed B-DWCNT were examined by using a transmission electron microscope (TEM) at 200 kV (JEOL-JEM2100F), while the surface morphology was surveyed by field emission scanning electron microscope (Hitachi S-4700, FE-SEM). More details of the experimental procedure for the synthesis are described elsewhere [17,20,23].…”

Section: Experimental Techniquesmentioning

confidence: 99%

“…used [17]. According to the tight binding and ab initio calculations, the several electronic states of boron saturating the tip edeges of the CNTS are located near to the Fermi level and the reduction of work function by 1.7 eV compared to pure CNT, which are responsible for the high field emission current rather than the field enhancement factor [25].…”

Section: Field Emission Propertiesmentioning

confidence: 99%

“…In our previous work, we showed that a catalytic CVD method involving the decomposition of tetrahydrofuran and triisopropyl borate can produce well defined DWCNT with inner and outer diameters in the range of 1.6-2.4 nm. In addition it was demonstrated that the boron concentration in carbon networks can be controllable simply by varying the boron precursor [17].…”

Section: Introductionmentioning

confidence: 99%

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Enhanced Field Emission Behavior from Boron-Doped Double-walled Carbon Nanotubes Synthesized by Catalytic Chemical Vapor Deposition

Kang¹,

Jang²,

Choi³

et al. 2012

Journal of Magnetics

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Attempts to dope carbon nanotube (CNT) with impurities in order to control the electronic properties of the CNT is a natural course of action. Boron is known to improve both the structural and electronic properties. In this report, we study the field emission properties of Boron-doped double-walled CNT (DWCNT). Boron-doped DWCNT films were fabricated by catalytic decomposition of tetrahydrofuran and triisopropyl borate over a Fe-Mo/MgO catalyst at 900 o C. We measured the field emission current by varying the doping amount of Boron from 0.8 to 1.8 wt%. As the amount of doped boron in the DWCNT increases, the turn-on-field of the DWCNT decreases drastically from 6 V/µm to 2 V/µm. The current density of undoped CNT is 0.6 mA/cm 2 at 9 V, but a doped-DWCNT sample with 1.8 wt% achieved the same current density only at only 3.8 V. This shows that boron doped DWCNTs are potentially useful in low voltage operative field emitting device such as large area flat panel displays.

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Section: Structure and Morphologymentioning

confidence: 83%

Section: Experimental Techniquesmentioning

confidence: 99%

Section: Field Emission Propertiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Enhanced Field Emission Behavior from Boron-Doped Double-walled Carbon Nanotubes Synthesized by Catalytic Chemical Vapor Deposition

Kang¹,

Jang²,

Choi³

et al. 2012

Journal of Magnetics

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“…However, many boron carbon materials and boron doped carbon nanotubes have been successfully synthesized and reported. 44,[48][49][50] So that the nanotubes in this study could in principle be synthesized, especially for B 2 CNT(0, n) based on their low strain energies.…”

Section: Resultsmentioning

confidence: 99%

CO2 capture and gas separation on boron carbon nanotubes

Sun

Wang

et al. 2013

Chemical Physics Letters

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. (2013). CO2 capture and gas separation on boron carbon nanotubes. Chemical Physics Letters, 575 ( June), 59-66. CO2 capture and gas separation on boron carbon nanotubes AbstractConcern about the increasing atmospheric CO2 concentration and its impact on the environment has led to increasing attention directed toward finding advanced materials and technologies suited for efficient CO2 capture, storage and purification of clean-burning natural gas. In this letter, we have performed comprehensive theoretical investigation of CO2, N2, CH4 and H2 adsorption on B2CNTs. Our study shows that CO2 molecules can form strong interactions with B2CNTs with different charge states. However, N2, CH 4 and H2 can only form very weak interactions with B 2CNTs. Therefore, the study demonstrates B2CNTs could sever as promising materials for CO2 capture and gas separation. 2013 Elsevier B.V. All rights reserved.

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Catalytic Chemical Vapor Deposition Methodology for Carbon Nanotubes Synthesis

Vir Singh,

Kumar Tiwari,

Gupta

2023

ChemistrySelect

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Carbon nanomaterial is a smart material of the 21st century. This review encompasses various studies involved in carbon nanotube synthesis (CNTs) (Single and multi‐walled) using the catalytic chemical vapor deposition method (CVD). Due to their structural features, the promising branch of nanotechnology is that CNTs possess electrical, magnetic, thermal, chemical, mechanical, and optical properties. 90 to 99 % CNTs were synthesized by the CVD method (Tip growth model and Base growth model) while 80 to 80 % were by laser ablation and only 70 % by arc discharge methods. In CVD method has used a gaseous phase hydrocarbon to pass through a tube‐shaped reactor in the presence of various catalysts at 500–1000 °C to form CNTs. This is one of the significant advantages as compared to other growth methodologies. Further, various parameters responsible for CNTs production are also explored. By comparing hydrocarbons such as methane, graphite, and coal, coal is an abundant and economically viable carbon source.

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Synthesis of boron-doped double-walled carbon nanotubes by the catalytic decomposition of tetrahydrofuran and triisopropyl borate

Cited by 62 publications

References 55 publications

Enhanced Field Emission Behavior from Boron-Doped Double-walled Carbon Nanotubes Synthesized by Catalytic Chemical Vapor Deposition

Enhanced Field Emission Behavior from Boron-Doped Double-walled Carbon Nanotubes Synthesized by Catalytic Chemical Vapor Deposition

CO2 capture and gas separation on boron carbon nanotubes

Catalytic Chemical Vapor Deposition Methodology for Carbon Nanotubes Synthesis

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