Carbon nanotube synthesis via the catalytic chemical vapor deposition of methane in the presence of iron, molybdenum, and iron–molybdenum alloy thin layer catalysts

Yahyazadeh, Arash; Khoshandam, Behnam

doi:10.1016/j.rinp.2017.10.001

Cited by 75 publications

(32 citation statements)

References 61 publications

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“…While Haiyam et al synthesized carbon nanomaterials (CNMs) on commercial PAC loaded with nickel nanoparticles by using methane as a carbon source [ 21 ]. Arash et al synthesized CNTs using CVD on silicon sheets loaded with iron and using molybdenum methane utilized as a carbon source [ 22 ]. Moreover, Zaho et al synthesized a significant outcome concerning the CNTs by using CVD in water and implementing iron and molybdenum catalyst supported by a magnesium oxide substrate [ 23 ].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Characterization, and Analysis of Hybrid Carbon Nanotubes by Chemical Vapor Deposition: Application for Aluminum Removal

et al. 2020

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Hybrid carbon nanotubes (CNTs) are grown on biomass powder-activated carbon (bio-PAC) by loading iron nanoparticles (Fe) as catalyst templates using chemical vapor deposition (CVD) and using acetylene as carbon source, under specific conditions as reaction temperature, time, and gas ratio that are 550 °C, 47 min, and 1, respectively. Specifications of hybrid CNTs were analyzed and characterized using field emission scanning electron microscope (FESEM) with energy-dispersive X-ray spectroscopy (EDX), transmission electron microscopic (TEM), Fourier-transform infrared (FTIR), X-ray diffraction (XRD), thermogravimetric analysis (TGA), surface area Brunauer–Emmett–Teller (BET), and zeta potential. The results revealed the high quality and unique morphologies of hybrid CNTs. Furthermore, removal and capacity of Al3+ were optimized by response surface methodology (RSM). However, the results revealed that the pseudo-second-order model well represented adsorption kinetic data, while the isotherm data were effectively fitted using a Freundlich model. The maximum adsorption capacity was 347.88 mg/g. It could be concluded that synthesized hybrid CNTs are a new cost-effective and promising adsorbent for removing Al3+ ion from wastewater.

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Section: Introductionmentioning

confidence: 99%

Synthesis, Characterization, and Analysis of Hybrid Carbon Nanotubes by Chemical Vapor Deposition: Application for Aluminum Removal

et al. 2020

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“…The experimental set up for CVD involves hydrocarbon decomposition with the catalyst and gas decomposition. The growth process, which can be scaled, usually results in high production of high‐purity materials 78,79 . Material growth includes various forms, such as powder and film, and in terms of the types of catalyst, it can be well‐aligned, entangled, flaked, and layered 35 .…”

Section: Self‐assembly Methods Of Tims Using Direct Growthmentioning

confidence: 99%

A review of thermal interface material fabrication method toward enhancing heat dissipation

et al. 2020

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Summary Thermal interface materials (TIMs) are applied in electronic devices that are involved in heat generation and raising the temperature. The optimization of TIMs is important in heat dissipation to maintain the good performance of devices, low power during operation, and reduced internal damages among small components. The TIMs are inserted between two contact surfaces to enhance thermal conductivity that will reduce the increment of surface temperature in a longer time and facilitates the cooling process with a consistent power supplied to the system with minimum increment. Research on nanomaterials and hybrid materials aims to obtain maximum thermal conductivity and reduce resistance in the devices. However, the suitable fabrication method for achieving good production and performance is still debatable. Therefore, significant fabrication methods have been explored for various materials. This review provides insights into the current work focusing on the materials used in the development of TIMs by various methods. The discussion begins with the introduction of thermal management and the working principles applied in the system. Then, the methods applied for material fabrication into TIMs, including the advantages and disadvantages of the methods, are discussed. Last, the current challenges and opportunities in methods used are discussed to offer new inputs and improvement in method modification for TIMs design. The targeted thermal performance for the industrial market of TIMs for nanomaterial applications is approximately 100 W/mK and 1 × 10−6 m2/WK with lowest power of 100 W.

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“…As previously discussed, MWCNT associated toxic effects can partly be attributed to metal impurities (van Berlo et al, 2012 ; Aldieri et al, 2013 ). For instance, nickel nanoparticles (NiNPs) may unintentionally contaminate nanotubes when used as catalysts during production or they may even be added intentionally for the purpose of functionalization (Abdel Fattah et al, 2016 ; Yahyazadeh and Khoshandam, 2017 ). Given that some MWCNTs can translocate to the pleura serving as a vehicle for nickel compounds, it is important to model the events following contact of NiNPs with the mesothelial lining.…”

Section: In Vitro Studies (Table 1 )mentioning

confidence: 99%

Carbon Nanotubes and Other Engineered Nanoparticles Induced Pathophysiology on Mesothelial Cells and Mesothelial Membranes

et al. 2018

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Nanoparticles have great potential for numerous applications due to their unique physicochemical properties. However, concerns have been raised that they may induce deleterious effects on biological systems. There is accumulating evidence that, like asbestos, inhaled nanomaterials of >5 μm and high aspect ratio (3:1), particularly rod-like carbon nanotubes, may inflict pleural disease including mesothelioma. Additionally, a recent set of case reports suggests that inhalation of polyacrylate/nanosilica could in part be associated with inflammation and fibrosis of the pleura of factory workers. However, the adverse outcomes of nanoparticle exposure to mesothelial tissues are still largely unexplored. In that context, the present review aims to provide an overview of the relevant pathophysiological implications involving toxicological studies describing effects of engineered nanoparticles on mesothelial cells and membranes. In vitro studies primarily emphasize on simulating cellular uptake and toxicity of nanotubes on benign or malignant cell lines. On the other hand, in vivo studies focus on illustrating endpoints of serosal pathology in rodent animal models. From a molecular aspect, some nanoparticle categories are shown to be cytotoxic and genotoxic after acute treatment, whereas chronic incubation may lead to malignant-like transformation. At an organism level, a number of fibrous shaped nanotubes are related with features of chronic inflammation and MWCNT-7 is the only type to consistently inflict mesothelioma.

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Carbon nanotube synthesis via the catalytic chemical vapor deposition of methane in the presence of iron, molybdenum, and iron–molybdenum alloy thin layer catalysts

Cited by 75 publications

References 61 publications

Synthesis, Characterization, and Analysis of Hybrid Carbon Nanotubes by Chemical Vapor Deposition: Application for Aluminum Removal

Synthesis, Characterization, and Analysis of Hybrid Carbon Nanotubes by Chemical Vapor Deposition: Application for Aluminum Removal

A review of thermal interface material fabrication method toward enhancing heat dissipation

Carbon Nanotubes and Other Engineered Nanoparticles Induced Pathophysiology on Mesothelial Cells and Mesothelial Membranes

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