Carbon nanostructures grown on 3D silicon carbide foams: Role of intermediate silica layer and metal growth

Saheed A. Ganiyu; Oki Muraza; Abbas S. Hakeem; Khalid Alhooshani; Muataz A. Atieh

doi:10.1016/j.cej.2014.05.150

Carbon nanostructures grown on 3D silicon carbide foams: Role of intermediate silica layer and metal growth

Saheed A. Ganiyu, Oki Muraza^*, Abbas S. Hakeem, Khalid Alhooshani, Muataz A. Atieh

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

Carbon nanostructures (CNSs) in the form of fibers and spheres have been successfully grown on 3 dimensional (3D) macroscopic silicon carbide (SiC) foams with the aid of mesoporous silica-films as interfacial layer via ethylene decomposition on nickel and iron as growth catalysts using chemical vapor deposition (CVD). The effect of growth temperature from 600 to 900°C on morphology, diameter and specific surface area of as-grown CNSs was studied. The as-grown CNSs were characterized by field emission scanning electron microscope (FE-SEM) and transmission electron microscope (TEM) to examine the morphology, diameter, microstructure and defect. Crystallinity and degree of graphitization were determined by X-ray diffraction and Raman spectrometer. Textural properties such as specific surface area, pore size and pore volume were measured by nitrogen gas adsorption-desorption. Uniform distribution of CNSs on 3D SiC-foam was obtained at 700°C for short synthesis time (30min), as well as high surface area of above 100m²/g. Degree of graphitization of CNSs grown on modified SiC substrates by using Ni as growth catalyst was higher than the one with the Fe-growth catalyst.

Original language	English
Pages (from-to)	110-118
Number of pages	9
Journal	Chemical Engineering Journal
Volume	258
DOIs	https://doi.org/10.1016/j.cej.2014.05.150
State	Published - 15 Dec 2014

Bibliographical note

Funding Information:
The authors would like to thank Mr. Dan Cortes and Mr. Jerwin Separa for FE-SEM analyses. The authors would like to acknowledge the support provided by King Abdul-Aziz City for Science and Technology (KACST) through the Science & Technology Unit at King Fahd University of Petroleum & Minerals (KFUPM) for funding this work through project 10-NAN1392-04 as part of the National Science, Technology and Innovation Plan.

Keywords

CVD
Carbon nanostructures
Mesoporous silica-films
Metal growth
Silicon-carbide foam

ASJC Scopus subject areas

General Chemistry
Environmental Chemistry
General Chemical Engineering
Industrial and Manufacturing Engineering

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title = "Carbon nanostructures grown on 3D silicon carbide foams: Role of intermediate silica layer and metal growth",

abstract = "Carbon nanostructures (CNSs) in the form of fibers and spheres have been successfully grown on 3 dimensional (3D) macroscopic silicon carbide (SiC) foams with the aid of mesoporous silica-films as interfacial layer via ethylene decomposition on nickel and iron as growth catalysts using chemical vapor deposition (CVD). The effect of growth temperature from 600 to 900°C on morphology, diameter and specific surface area of as-grown CNSs was studied. The as-grown CNSs were characterized by field emission scanning electron microscope (FE-SEM) and transmission electron microscope (TEM) to examine the morphology, diameter, microstructure and defect. Crystallinity and degree of graphitization were determined by X-ray diffraction and Raman spectrometer. Textural properties such as specific surface area, pore size and pore volume were measured by nitrogen gas adsorption-desorption. Uniform distribution of CNSs on 3D SiC-foam was obtained at 700°C for short synthesis time (30min), as well as high surface area of above 100m2/g. Degree of graphitization of CNSs grown on modified SiC substrates by using Ni as growth catalyst was higher than the one with the Fe-growth catalyst.",

keywords = "CVD, Carbon nanostructures, Mesoporous silica-films, Metal growth, Silicon-carbide foam",

author = "Ganiyu, {Saheed A.} and Oki Muraza and Hakeem, {Abbas S.} and Khalid Alhooshani and Atieh, {Muataz A.}",

note = "Funding Information: The authors would like to thank Mr. Dan Cortes and Mr. Jerwin Separa for FE-SEM analyses. The authors would like to acknowledge the support provided by King Abdul-Aziz City for Science and Technology (KACST) through the Science & Technology Unit at King Fahd University of Petroleum & Minerals (KFUPM) for funding this work through project 10-NAN1392-04 as part of the National Science, Technology and Innovation Plan. ",

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doi = "10.1016/j.cej.2014.05.150",

language = "English",

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AU - Ganiyu, Saheed A.

AU - Muraza, Oki

AU - Hakeem, Abbas S.

AU - Alhooshani, Khalid

AU - Atieh, Muataz A.

N1 - Funding Information: The authors would like to thank Mr. Dan Cortes and Mr. Jerwin Separa for FE-SEM analyses. The authors would like to acknowledge the support provided by King Abdul-Aziz City for Science and Technology (KACST) through the Science & Technology Unit at King Fahd University of Petroleum & Minerals (KFUPM) for funding this work through project 10-NAN1392-04 as part of the National Science, Technology and Innovation Plan.

PY - 2014/12/15

Y1 - 2014/12/15

N2 - Carbon nanostructures (CNSs) in the form of fibers and spheres have been successfully grown on 3 dimensional (3D) macroscopic silicon carbide (SiC) foams with the aid of mesoporous silica-films as interfacial layer via ethylene decomposition on nickel and iron as growth catalysts using chemical vapor deposition (CVD). The effect of growth temperature from 600 to 900°C on morphology, diameter and specific surface area of as-grown CNSs was studied. The as-grown CNSs were characterized by field emission scanning electron microscope (FE-SEM) and transmission electron microscope (TEM) to examine the morphology, diameter, microstructure and defect. Crystallinity and degree of graphitization were determined by X-ray diffraction and Raman spectrometer. Textural properties such as specific surface area, pore size and pore volume were measured by nitrogen gas adsorption-desorption. Uniform distribution of CNSs on 3D SiC-foam was obtained at 700°C for short synthesis time (30min), as well as high surface area of above 100m2/g. Degree of graphitization of CNSs grown on modified SiC substrates by using Ni as growth catalyst was higher than the one with the Fe-growth catalyst.

AB - Carbon nanostructures (CNSs) in the form of fibers and spheres have been successfully grown on 3 dimensional (3D) macroscopic silicon carbide (SiC) foams with the aid of mesoporous silica-films as interfacial layer via ethylene decomposition on nickel and iron as growth catalysts using chemical vapor deposition (CVD). The effect of growth temperature from 600 to 900°C on morphology, diameter and specific surface area of as-grown CNSs was studied. The as-grown CNSs were characterized by field emission scanning electron microscope (FE-SEM) and transmission electron microscope (TEM) to examine the morphology, diameter, microstructure and defect. Crystallinity and degree of graphitization were determined by X-ray diffraction and Raman spectrometer. Textural properties such as specific surface area, pore size and pore volume were measured by nitrogen gas adsorption-desorption. Uniform distribution of CNSs on 3D SiC-foam was obtained at 700°C for short synthesis time (30min), as well as high surface area of above 100m2/g. Degree of graphitization of CNSs grown on modified SiC substrates by using Ni as growth catalyst was higher than the one with the Fe-growth catalyst.

KW - CVD

KW - Carbon nanostructures

KW - Mesoporous silica-films

KW - Metal growth

KW - Silicon-carbide foam

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Carbon nanostructures grown on 3D silicon carbide foams: Role of intermediate silica layer and metal growth

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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