نتایج جستجو برای: cnt growth rate

تعداد نتایج: 1693722  

Journal: :Small 2009
S Tawfick K O'Brien A J Hart

Applications of carbon nanotubes (CNTs) in flexible and complementary metal-oxide-semiconductor (CMOS)-based electronic and energy devices are impeded due to typically low CNT areal densities, growth temperatures that are incompatible with device substrates, and challenges in large-area alignment and interconnection. A scalable method for continuous fabrication and transfer printing of dense ho...

Journal: :international journal of nano dimension 0
ghazaleh allaedini department of chemical and process engineering, universitikebangsaan malaysia, 43600 bangi, selangor, malaysia. siti masrinda tasirin department of chemical and process engineering, universitikebangsaan malaysia, 43600 bangi, selangor, malaysia. payam aminayi chemical and paper engineering, western michigan university, kalamazoo, michigan, usa. zahira yaakob department of chemical and process engineering, universitikebangsaan malaysia, 43600 bangi, selangor, malaysia. meor zainal meor talib department of chemical and process engineering, universitikebangsaan malaysia, 43600 bangi, selangor, malaysia.

this review paper provides researcherwith a comprehensive information about the carbon nano tubes and the catalyst parameters that influences theproduction and morphology of the of carbon nano tubes.carbon nanotubes, referred to as cnts, are one of the most important materials used in electrical, mechanical, thermal, chemical and textile industries. since discovery of cnts in 1991, many scienti...

Carbon nanotubes (CNTs), nowadays, are one of the important nanomaterials that can be produce with different methods such as chemical vapor deposition (CVD). Growing of CNTs via CVD method can be influenced by several operating parameters that can affect their quality and quantity. In this article, the effects of inlet gas mixture temperature on CNT’s local growth rate, total production, and le...

2009
Namiko Yamamoto A. John Hart Enrique J. Garcia Sunny S. Wicks Hai M. Duong Alexander H. Slocum Brian L. Wardle

We present an in-depth study of CNT growth on commercially-available woven alumina fibers, and achieve uniform growth of dense aligned CNTs on commercially-available cloths up to 5 · 10 cm in area. By systematically varying the catalyst concentration, catalyst pre-treatment time, and sample position within the tube furnace, we isolate key factors governing CNT morphology on fiber surfaces and c...

Carbon nanotubes (CNTs), nowadays, are one of the important nanomaterials that can be produce with different methods such as chemical vapor deposition (CVD). Growing of CNTs via CVD method can be influenced by several operating parameters that can affect their quality and quantity. In this article, the effects of inlet gas mixture temperature on CNT’s local growth rate, total production, and le...

2011
Philip D. Bradford Xin Wang Haibo Zhao Y. T. Zhu

A post-growth chemical vapor deposition (CVD) treatment was used to tune the compressive mechanical properties of carbon nanotube (CNT) arrays. Millimeter tall CNT arrays with low compressive resilience were changed to a foam-like material with high compressive strength and almost complete recovery upon unloading. The foam was tuned to provide a range of compressive properties for various appli...

Journal: :international journal of bio-inorganic hybrid nanomaterials 0

carbon nanotubes (cnts), nowadays, are one of the important nanomaterials that can be produce with different methods such as chemical vapor deposition (cvd). growing of cnts via cvd method can be influenced by several operating parameters that can affect their quality and quantity. in this article, the effects of inlet gas mixture temperature on cnt’s local growth rate, total production, and le...

2013
Rahul Rao Gugang Chen Leela Mohana Reddy Arava Kaushik Kalaga Masahiro Ishigami Tony F. Heinz Pulickel M. Ajayan Avetik R. Harutyunyan

Growth of vertically aligned carbon nanotube (CNT) forests is highly sensitive to the nature of the substrate. This constraint narrows the range of available materials to just a few oxide-based dielectrics and presents a major obstacle for applications. Using a suspended monolayer, we show here that graphene is an excellent conductive substrate for CNT forest growth. Furthermore, graphene is sh...

Journal: :The Journal of chemical physics 2009
James A Elliott Marc Hamm Yasushi Shibuta

A parametrized mesoscale model for the early stage growth of isolated single or multiwall carbon nanotubes (CNTs) has been developed in order to investigate the effects of metal catalyst particle size and composition on CNT growth mechanism during synthesis via a substrate-supported, catalytic chemical vapor deposition process. The model is based on a coarse-grained graphene sheet, represented ...

2014
Christoph Nick Sandeep Yadav Ravi Joshi Christiane Thielemann Jörg J Schneider

The growth of cortical neurons on three dimensional structures of spatially defined (structured) randomly oriented, as well as on vertically aligned, carbon nanotubes (CNT) is studied. Cortical neurons are attracted towards both types of CNT nano-architectures. For both, neurons form clusters in close vicinity to the CNT structures whereupon the randomly oriented CNTs are more closely colonised...

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