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Synthesis and characterization of Cobalt/Calcium Carbonate catalyst in the production of carbon nanotubes

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Bibliographic Details
Main Author: Ong, Huey Lin
Other Authors: Dr. Siti Shuhadah Mad Saleh
Format: Other
Language:English
Published: Universiti Malaysia Perlis (UniMAP) 2022
Subjects:
Carbon nanotubes
Catalysts
Cobalt/Calcium Carbonate catalyst
Online Access:http://dspace.unimap.edu.my:80/xmlui/handle/123456789/77910
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spelling my.unimap-779102023-02-22T07:18:58Z Synthesis and characterization of Cobalt/Calcium Carbonate catalyst in the production of carbon nanotubes Ong, Huey Lin Dr. Siti Shuhadah Mad Saleh School of Materials Engineering Carbon nanotubes Catalysts Cobalt/Calcium Carbonate catalyst Access is limited to UniMAP community. Since its discovery, carbon nanotubes (CNTs) have been widely researched owing to their large potential in nanotechnological applications. The effects of catalyst calcination behavior (temperature and duration) on the production of CNTs synthesized via chemical vapor deposition (CVD) were studied. The catalysts were prepared through co-precipitated technique by mixing Co salt and CaCO3 powder which was then calcined at various temperatures followed by methane decomposition process to grow CNTs on CaCO3 support. The temperatures were selected based on TGA analysis of uncalcined catalyst. The optimum temperature was chosen and proceed with a variation of calcination durations. Results showed that the CNTs products are found to be Type II isotherm with their surface areas in the range of 2.77 to 68.77 m2/g. It was also noteworthy that the catalyst calcined at 500 °C for 10 hours had successfully yielded a high amount of CNTs as judged by scanning electron microscopy (SEM) whereas less traces of CNTs were detected for catalyst calcined at 300 °C and 700 °C respectively with a decreasing trend of crystallite size according to the calculation of Debye-Scherrer equation. 2022-08 2023-02-22T07:18:58Z 2023-02-22T07:18:58Z 2017-06 Other http://dspace.unimap.edu.my:80/xmlui/handle/123456789/77910 en Universiti Malaysia Perlis (UniMAP)
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Carbon nanotubes
Catalysts
Cobalt/Calcium Carbonate catalyst
spellingShingle Carbon nanotubes
Catalysts
Cobalt/Calcium Carbonate catalyst
Ong, Huey Lin
Synthesis and characterization of Cobalt/Calcium Carbonate catalyst in the production of carbon nanotubes
description Access is limited to UniMAP community.
author2 Dr. Siti Shuhadah Mad Saleh
author_facet Dr. Siti Shuhadah Mad Saleh
Ong, Huey Lin
format Other
author Ong, Huey Lin
author_sort Ong, Huey Lin
title Synthesis and characterization of Cobalt/Calcium Carbonate catalyst in the production of carbon nanotubes
title_short Synthesis and characterization of Cobalt/Calcium Carbonate catalyst in the production of carbon nanotubes
title_full Synthesis and characterization of Cobalt/Calcium Carbonate catalyst in the production of carbon nanotubes
title_fullStr Synthesis and characterization of Cobalt/Calcium Carbonate catalyst in the production of carbon nanotubes
title_full_unstemmed Synthesis and characterization of Cobalt/Calcium Carbonate catalyst in the production of carbon nanotubes
title_sort synthesis and characterization of cobalt/calcium carbonate catalyst in the production of carbon nanotubes
publisher Universiti Malaysia Perlis (UniMAP)
publishDate 2022
url http://dspace.unimap.edu.my:80/xmlui/handle/123456789/77910
_version_ 1772813084794028032
score 13.214268

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