Growth Phenomena of Carbon Nanotubes Over Co-Mo/MgO Catalyst from the Decomposition of Acetylene
نویسندگان
چکیده
منابع مشابه
investigation of the electronic properties of carbon and iii-v nanotubes
boron nitride semiconducting zigzag swcnt, $b_{cb}$$n_{cn}$$c_{1-cb-cn}$, as a potential candidate for making nanoelectronic devices was examined. in contrast to the previous dft calculations, wherein just one boron and nitrogen doping configuration have been considered, here for the average over all possible configurations, density of states (dos) was calculated in terms of boron and nitrogen ...
15 صفحه اولThe Preparation of Bamboo-Structured Carbon Nanotubes with the Controlled Porosity by CVD of Acetylene on Co-Mo/MCM-41
Bamboo-structured carbon nanotubes are grown on Co-Mo/MCM-41 catalyst in the temperature range of 873-973 K by thermal chemical vapor deposition of acetylene. This study shows that the purified carbon nanotubes have open tips and the metals of the catalyst are not encapsulated. Thus, the bamboo-structure seems to grow from the base. Pore size distribution of the product is quite narrow and ...
متن کاملRole of growth temperature in CVD synthesis of Carbon nanotubes from Ni-Co bimetallic catalysts
The effect of temperature variation on the growth of Carbon Nanotubes (CNTs) using Thermal Chemical Vapor Deposition (TCVD) is presented. Nickel and Cobalt (Ni-Co) thin films on Silicon (Si) substrates were used as catalysts in TCVD technique. Acetylene gas was used in CNTs growth process at the controlled temperature ranges from 850-1000 ̊ C. Catalysts and CNTs characterization was carried out ...
متن کاملRole of growth temperature in CVD synthesis of Carbon nanotubes from Ni-Co bimetallic catalysts
The effect of temperature variation on the growth of Carbon Nanotubes (CNTs) using Thermal Chemical Vapor Deposition (TCVD) is presented. Nickel and Cobalt (Ni-Co) thin films on Silicon (Si) substrates were used as catalysts in TCVD technique. Acetylene gas was used in CNTs growth process at the controlled temperature ranges from 850-1000 ̊ C. Catalysts and CNTs characterization was carried out ...
متن کاملGrowth of CNTs over Fe–Co/Nanometric TiO2 Catalyst by CVD: The Effects of Catalyst Composition and Growth Temperature
In this research carbon nanotubes were produced by chemical vapor deposition of acetylene over a mixture of iron and cobalt catalysts supported on nanometric TiO2 and the influences of two synthesis parameters: growth temperature and catalyst composition ratio on properties of end-product carbon nanotubes were investigated. The catalytic basis was prepared by wet impregnation ...
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ژورنال
عنوان ژورنال: Bangladesh Journal of Scientific and Industrial Research
سال: 1970
ISSN: 2224-7157,0304-9809
DOI: 10.3329/bjsir.v42i2.463