Gold Nanoparticles as the Catalyst of Single-Walled Carbon Nanotube Synthesis

Homma, Yoshikazu

doi:10.3390/catal4010038

Cited by 22 publications

(12 citation statements)

References 39 publications

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“…16 They are typically used as catalysts for the growth of nanowires made of a wide range of materials such as ZnO, Si, and Ge as well as the active sites for surface enhanced Raman scattering (SERS) applications. [17][18][19] The experimental setup used and described below is a novel nanoparticle vapor deposition (NVD) system designed and manufactured by DCA Instruments combined with a DLI Vapbox 1500 NP injector (Kemstream).…”

Section: Introductionmentioning

confidence: 99%

Development of a new direct liquid injection system for nanoparticle deposition by chemical vapor deposition using nanoparticle solutions

Vervaele

Roo

Deschaume

et al. 2016

Review of Scientific Instruments

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Nanoparticles of different materials are already in use for many applications. In some applications, these nanoparticles need to be deposited on a substrate in a fast and reproducible way. We have developed a new direct liquid injection system for nanoparticle deposition by chemical vapor deposition using a liquid nanoparticle precursor. The system was designed to deposit nanoparticles in a controlled and reproducible way by using two direct liquid injectors to deliver nanoparticles to the system. The nanoparticle solution is first evaporated and then the nanoparticles flow onto a substrate inside the vacuum chamber. To allow injection and evaporation of the liquid, a direct liquid injection and vaporization system are mounted on top of the process chamber. The deposition of the nanoparticles is controlled by parameters such as deposition temperature, partial pressure of the gases, and flow rate of the nanoparticle suspension. The concentration of the deposited nanoparticles can be varied simply by changing the flow rate and deposition time. We demonstrate the capabilities of this system using gold nanoparticles. The selected suspension flow rates were varied between 0.25 and 1 g/min. AFM analysis of the deposited samples showed that the aggregation of gold nanoparticles is well controlled by the flow and deposition parameters.

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Section: Introductionmentioning

confidence: 99%

Development of a new direct liquid injection system for nanoparticle deposition by chemical vapor deposition using nanoparticle solutions

Vervaele

Roo

Deschaume

et al. 2016

Review of Scientific Instruments

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“…Melechko et al has summarized some catalysts used for CNT growth [68]. The catalysts like nickel [22,51,[68][69][70][71][72][73], cobalt [74][75][76][77][78], iron [56,59,[79][80][81], stainless steel [82][83][84], gold [85], platinum [80] and their alloys are used successfully and effectively.…”

Section: Catalystmentioning

confidence: 99%

Synthesis of Patterned Vertically Aligned Carbon Nanotubes by PECVD Using Different Growth Techniques: A Review

Gangele

Sharma

Pandey

2017

j nanosci nanotechnol

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Immense development has been taken place not only to increase the bulk production, repeatability and yield of carbon nanotubes (CNTs) in last 25 years but preference is also given to acknowledge the basic concepts of nucleation and growth methods. Vertically aligned carbon nanotubes (VAC-NTs) are forest of CNTs accommodated perpendicular on a substrate. Their exceptional chemical and physical properties along with sequential arrangement and dense structure make them suitable in various fields. The effect of different type of selected substrate, carbon precursor, catalyst and their physical and chemical status, reaction conditions and many other key parameters have been thoroughly studied and analysed. The aim of this paper is to specify the trend and summarize the effect of key parameters instead of only presenting all the experiments reported till date. The identified trends will be compared with the recent observations on the growth of different types of patterned VACNTs. In this review article, we have presented a comprehensive analysis of different techniques to precisely determine the role of different parameters responsible for the growth of patterned vertical aligned carbon nanotubes. We have covered various techniques proposed in the span of more than two decades to fabricate the different structures and configurations of carbon nanotubes on different types of substrates. Apart from a detailed discussion of each technique along with their specific process and implementation, we have also provided a critical analysis of the associated constraints, benefits and shortcomings. To sum it all for easy reference for researchers, we have tabulated all the techniques based on certain main key factors. This review article comprises of an exhaustive discussion and a handy reference for researchers who are new in the field of synthesis of CNTs or who wants to get abreast with the techniques of determining the growth of VACNTs arrays.

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“…In the following, products obtained from each of these three groups are called nanotechnology-based products. Nevertheless, its commercial synthesis and its using as building blocks to produce new materials are still an open problem (Homma 2014;Mehra et al 2014). For example, CNTs have been found a wide range of applications as Fig.…”

Section: An Industrial Perspective Research Challenges In Nanotechnologymentioning

confidence: 99%

Nanotechnology for Chemical Engineers

Elnashaie

Danafar

Hashemipour

2015

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Gold Nanoparticles as the Catalyst of Single-Walled Carbon Nanotube Synthesis

Cited by 22 publications

References 39 publications

Development of a new direct liquid injection system for nanoparticle deposition by chemical vapor deposition using nanoparticle solutions

Development of a new direct liquid injection system for nanoparticle deposition by chemical vapor deposition using nanoparticle solutions

Synthesis of Patterned Vertically Aligned Carbon Nanotubes by PECVD Using Different Growth Techniques: A Review

Nanotechnology for Chemical Engineers

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