Properties of Amorphous Carbon Microspheres Synthesised by Palm Oil-CVD Method

Journal Article · Wed Mar 30 00:00:00 EDT 2011 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3573721· OSTI ID:21511533

Zobir, S A. M. ^[1]; Zainal, Z ^[2]; Sarijo, S H ^[1]; Rusop, M ^[3]

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1. Faculty of Applied Sciences, (UiTM), 40450 Shah Alam, Selangor (Malaysia)
2. Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400UPM, Serdang, Selangor (Malaysia)
3. Nano-SciTech Centre, (UiTM), 40450 Shah Alam, Selangor (Malaysia)

Amorphous carbon microspheres were synthesized using a dual-furnace chemical vapour deposition method at 800-1000 deg. C. Palm oil-based cooking oil (PO) and zinc nitrate solution was used as a carbon source and catalyst precursor, respectively with PO to zinc nitrate ratio of 30:20 (v/v) and a silicon wafer as the sample target. Regular microsphere shape of the amorphous carbons was obtained and a uniform microsphere structure improved as the carbonization temperature increased from 800 to 1000 deg. C. At 800 deg. C, no regular microspheres were formed but more uniform structure is observed at 900 deg. C. Generally the microspheres size is uniform when the heating temperature was increased to 1000 deg. C, but the presence of mixed sizes can still be observed. X-ray diffraction patterns show the presence of oxide of carbon, ZnO phase together with Zn oxalate phase. Raman spectra show two broad peaks characteristic to amorphous carbon at 1344 and 1582 cm{sup -1} for the D and G bands, respectively. These bands become more prominent as the preparation temperature increased from 800 to 1000 deg. C. This is in agreement with the formation of amorphous carbon microspheres as shown by the FESEM study and other Zn-based phases as a result of the oxidation process of the palm oil as the carbon source and the zinc nitrate as the catalyst precursor, respectively.

• OSTI ID: 21511533
• Journal Information: AIP Conference Proceedings, Vol. 1328, Issue 1; Conference: PERFIK-2010: Malaysia annual physics conference 2010, Damai Laut (Malaysia), 27-30 Oct 2010; Other Information: DOI: 10.1063/1.3573721; (c) 2011 American Institute of Physics; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
AMORPHOUS STATE
CARBON
CARBON SOURCES
CARBONIZATION
CATALYSTS
CHEMICAL VAPOR DEPOSITION
MICROSPHERES
OXALATES
OXIDATION
PALM OIL
RAMAN SPECTRA
SILICON
TEMPERATURE RANGE 1000-4000 K
X-RAY DIFFRACTION
ZINC NITRATES
ZINC OXIDES
CARBOXYLIC ACID SALTS
CHALCOGENIDES
CHEMICAL COATING
CHEMICAL REACTIONS
COHERENT SCATTERING
DECOMPOSITION
DEPOSITION
DIFFRACTION
ELEMENTS
NITRATES
NITROGEN COMPOUNDS
NONMETALS
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
SCATTERING
SEMIMETALS
SPECTRA
SURFACE COATING
TEMPERATURE RANGE
VEGETABLE OILS
ZINC COMPOUNDS