Versatile Catalytic System for the Large-Scale and Controlled Synthesis of Single-Wall, Double-Wall, Multi-Wall, and Graphene Carbon Nanostructures

2009 ◽  
Vol 21 (22) ◽  
pp. 5491-5498 ◽  
Author(s):  
Enkeleda Dervishi ◽  
Zhongrui Li ◽  
Fumiya Watanabe ◽  
Aurelie Courte ◽  
Abhijit Biswas ◽  
...  
Keyword(s):  
Catalytic System ◽  
Carbon Nanostructures ◽  
Large Scale ◽  
Controlled Synthesis ◽  
Double Wall

Structure Controlled Synthesis of Vertically Aligned Carbon Nanotubes Using Thermal Chemical Vapor Deposition Process

2010 ◽  
Vol 133 (3) ◽  
Author(s):  
Myung Gwan Hahm ◽  
Young-Kyun Kwon ◽  
Ahmed Busnaina ◽  
Yung Joon Jung
Keyword(s):  
Carbon Nanotubes ◽  
Chemical Vapor Deposition ◽  
Vapor Deposition ◽  
Large Scale ◽  
Chemical Vapor ◽  
Controlled Synthesis ◽  
Full Potential ◽  
Thermal Chemical Vapor Deposition ◽  
Vertically Aligned ◽  
Walled Carbon Nanotubes

Due to their unique one-dimensional nanostructure along with excellent mechanical, electrical, and optical properties, carbon nanotubes (CNTs) become a promising material for diverse nanotechnology applications. However, large-scale and structure controlled synthesis of CNTs still have many difficulties due to the lack of understanding of the fundamental growth mechanism of CNTs, as well as the difficulty of controlling atomic-scale physical and chemical reactions during the nanotube growth process. Especially, controlling the number of graphene wall, diameter, and chirality of CNTs are the most important issues that need to be solved to harness the full potential of CNTs. Here we report the large-scale selective synthesis of vertically aligned single walled carbon nanotubes (SWNTs) and double walled carbon nanotubes (DWNTs) by controlling the size of catalyst nanoparticles in the highly effective oxygen assisted thermal chemical vapor deposition (CVD) process. We also demonstrate a simple but powerful strategy for synthesizing ultrahigh density and diameter selected vertically aligned SWNTs through the precise control of carbon flow during a thermal CVD process.

scholarly journals Carbon Nanosorbent for Purification Different Biomolecules

2011 ◽  
Vol 14 (1) ◽  
pp. 41
Author(s):  
Z.A. Mansurov ◽  
A.R. Kerimkulova ◽  
S.A. Ibragimova ◽  
E.Y. Gukenheimer
Keyword(s):  
Carbon Nanostructures ◽  
Large Scale ◽  
Carbon Materials ◽  
Raw Materials ◽  
Carbon Sorbent ◽  
Nanostructured Carbon ◽  
Lipid Complex ◽  
Carbon Sorbents ◽  
Physico Chemical ◽  
Chemical Studies

The article presents the results of physico-chemical studies on the development of nanostructured carbon materials from domestic raw materials. Were obtained and tested micro-mesoporous carbon sorbents for molecular-sieve chromatography of markers and investigated the applicability of carbon sorbents for the separation of protein-lipid complex, and plant bio-stimulator. Carbon sorbents have well-developed porous structure but their disadvantage is the weak mechanical<br />strength. Recently it was shown that some carbon nanostructures have enormous strength. Thus arose the need to give the nano structured elements to carbon sorbent. Creating carbon sorbents containing nanocarbon structure was the aim of our study, as these by sorbents will be very useful for large-scale purification of biomolecules.

Full-Layer Controlled Synthesis and Transfer of Large-Scale Monolayer Graphene for Nitrogen Dioxide and Ammonia Sensing

2013 ◽  
Vol 47 (2) ◽  
pp. 280-294 ◽  
Author(s):  
Vu Van Quang ◽  
Ngo Si Trong ◽  
Nguyen Ngoc Trung ◽  
Nguyen Duc Hoa ◽  
Nguyen Van Duy ◽  
...  
Keyword(s):  
Nitrogen Dioxide ◽  
Large Scale ◽  
Monolayer Graphene ◽  
Controlled Synthesis ◽  
Ammonia Sensing

scholarly journals Monodisperse Fe3O4 spheres: Large-scale controlled synthesis in the absence of surfactants and chemical kinetic process

2019 ◽  
Vol 62 (10) ◽  
pp. 1488-1495 ◽  
Author(s):  
Yana Li ◽  
Zhiyi Wang ◽  
Zeeshan Ali ◽  
Kesong Tian ◽  
Junjie Xu ◽  
...  
Keyword(s):  
Large Scale ◽  
Chemical Kinetic ◽  
Kinetic Process ◽  
Controlled Synthesis

Controlled synthesis of carbon nanostructures using aligned ZnO nanorods as templates

Carbon ◽  
2012 ◽  
Vol 50 (15) ◽  
pp. 5472-5480 ◽  
Author(s):  
Puleng Mbuyisa ◽  
Sunil P. Bhardwaj ◽  
Federica Rigoni ◽  
Elvio Carlino ◽  
Stefania Pagliara ◽  
...  
Keyword(s):  
Carbon Nanostructures ◽  
Zno Nanorods ◽  
Controlled Synthesis

Controlled synthesis in large-scale of CdS mesospheres and photocatalytic activity

2010 ◽  
Vol 64 (3) ◽  
pp. 439-441 ◽  
Author(s):  
Chao Wang ◽  
Yanhui Ao ◽  
Peifang Wang ◽  
Jun Hou ◽  
Jin Qian ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Large Scale ◽  
Controlled Synthesis

Morphology-controlled synthesis of Fe3O4/carbon nanostructures for lithium ion batteries

2014 ◽  
Vol 29 (4) ◽  
pp. 301-308 ◽  
Author(s):  
Hong-gui Deng ◽  
Shuang-ling Jin ◽  
Liang Zhan ◽  
Ming-lin Jin ◽  
Li-cheng Ling
Keyword(s):  
Lithium Ion Batteries ◽  
Carbon Nanostructures ◽  
Lithium Ion ◽  
Controlled Synthesis

scholarly journals Oriented Carbon Nanostructures from Plasma Reformed Resorcinol-Formaldehyde Polymer Gels for Gas Sensor Applications

Nanomaterials ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 1704
Author(s):  
Neelakandan M. Santhosh ◽  
Aswathy Vasudevan ◽  
Andrea Jurov ◽  
Gregor Filipič ◽  
Janez Zavašnik ◽  
...  
Keyword(s):  
Surface Treatment ◽  
Carbon Nanostructures ◽  
Large Scale ◽  
Gas Flow ◽  
Treatment Time ◽  
Polymer Gels ◽  
Rf Plasma ◽  
Polymer Gel ◽  
Vertical Orientation ◽  
Resorcinol Formaldehyde

Oriented carbon nanostructures (OCNs) with dominant graphitic characteristics have attracted research interest for various applications due to the excellent electrical and optical properties owing to their vertical orientation, interconnected structures, electronic properties, and large surface area. Plasma enhanced chemical vapor deposition (PECVD) is considered as a promising method for the large-scale synthesis of OCNs. Alternatively, structural reformation of natural carbon precursor or phenol-based polymers using plasma-assisted surface treatment is also considered for the fabrication of OCNs. In this work, we have demonstrated a fast technique for the synthesis of OCNs by plasma-assisted structure reformation of resorcinol-formaldehyde (RF) polymer gels using radio-frequency inductively coupled plasma (rf-ICP). A thin layer of RF polymer gel cast on a glass substrate was used as the carbon source and treated with rf plasma under different plasma discharge conditions. Argon and hydrogen gases were used in surface treatment, and the growth of carbon nanostructures at different discharge parameters was systematically examined. This study explored the influence of the gas flow rate, the plasma power, and the treatment time on the structural reformation of polymer gel to produce OCNs. Moreover, the gas-sensing properties of as-prepared OCNs towards ethanol at atmospheric conditions were also investigated.

Carbon Cones - a Structure with Unique Properties

2007 ◽  
Vol 1057 ◽  
Author(s):  
Geir Helgesen ◽  
Kenneth D. Knudsen ◽  
Jean Patrick Pinheiro ◽  
Arne T. Skjeltorp ◽  
Eldrid Svåsand ◽  
...  
Keyword(s):  
Carbon Black ◽  
Carbon Nanostructures ◽  
Large Scale ◽  
The Other ◽  
Current Status ◽  
Scale Production ◽  
Plasma Process ◽  
Large Scale Production ◽  
Nanocarbon Materials ◽  
Forms Of Carbon

ABSTRACTLarge-scale production of perfect conical carbon nanostructures that are fundamentally different from the other nanocarbon materials, such as buckyballs and nanotubes, can be made using the so-called Kvaerner Carbon Black & Hydrogen Process. This involves pyrolysis of hydrocarbons using a torch plasma process. The carbon cones that occur appear in five distinctly different forms. In addition, disk-shaped particles may be produced. Here we report about the current status for the experimental research and theoretical modeling of these particles, which have properties different from the other known forms of carbon.

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