Gel combustion synthesis and characterizations of nanocrystalline ZnO in various dispersants and mol ratio

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Zinc oxide nanoparticles were successfully synthesized using modified gel combustion synthesis route. Zinc nitrate was used as oxidant while fatty alcohol (8 carbon chains - octyl alcohol) and fatty ester (12 carbon chains - lauric acid) derived from palm oil as well as glycerol played the role of organic dispersants/fuel. X-ray diffraction (XRD) patterns of the calcined samples exhibited three prominent peaks at ca. 2eθ = 31.9°, 34.6° and 36.4° corresponding to (100), (002) and (101) reflection planes which were well indexed to zinc oxide hexagonal phase with wurtzite structure. Additional peaks were not observed in XRD patterns suggesting that no other phases were formed during the combustion synthesis. The morphology of calcined samples produced using glycerol as fuel exhibited elongated spindle-like shapes at ca. 1 ìm consisted of nanoparticles. Samples prepared using fatty alcohol as fuel exhibited hexagonal morphology with crystallites sizes of ca. 30 to 40 nm. These results suggested that palm oil derived fatty alcohols and fatty esters are alternative materials as organic dispersants in the production of metal nanoparticles using gel combustion synthesis. The resulting optical properties of ZnO nanocrystallites prepared in this study were similar to those obtain from bulk materials with energy band gap value at ca. 3.28 eV compared to 3.37 eV for the latter.

Original languageEnglish
Title of host publication4th Mechanical and Manufacturing Engineering
Pages1282-1286
Number of pages5
DOIs
Publication statusPublished - 16 Jan 2014
Event4th International Conference on Mechanical and Manufacturing Engineering, ICME 2013 - Bangi-Putrajaya, Malaysia
Duration: 17 Dec 201318 Dec 2013

Publication series

NameApplied Mechanics and Materials
Volume465-466
ISSN (Print)1660-9336
ISSN (Electronic)1662-7482

Other

Other4th International Conference on Mechanical and Manufacturing Engineering, ICME 2013
CountryMalaysia
CityBangi-Putrajaya
Period17/12/1318/12/13

Fingerprint

Combustion synthesis
Palm oil
Gels
Zinc oxide
Glycerol
Diffraction patterns
Esters
Nanoparticles
X ray diffraction
Nanocrystallites
Carbon
Metal nanoparticles
Oxidants
Crystallites
Band structure
Nitrates
Energy gap
Alcohols
Zinc
Optical properties

All Science Journal Classification (ASJC) codes

  • Engineering(all)

Cite this

Razak, N. A. A., Shah, N. N. H., Misran, H., Abd. Manap, A. N., & Yap, B. K. (2014). Gel combustion synthesis and characterizations of nanocrystalline ZnO in various dispersants and mol ratio. In 4th Mechanical and Manufacturing Engineering (pp. 1282-1286). (Applied Mechanics and Materials; Vol. 465-466). https://doi.org/10.4028/www.scientific.net/AMM.465-466.1282
Razak, N. A.A. ; Shah, N. N.H. ; Misran, Halina ; Abd. Manap, Abreeza Noorlina ; Yap, Boon Kar. / Gel combustion synthesis and characterizations of nanocrystalline ZnO in various dispersants and mol ratio. 4th Mechanical and Manufacturing Engineering. 2014. pp. 1282-1286 (Applied Mechanics and Materials).
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title = "Gel combustion synthesis and characterizations of nanocrystalline ZnO in various dispersants and mol ratio",
abstract = "Zinc oxide nanoparticles were successfully synthesized using modified gel combustion synthesis route. Zinc nitrate was used as oxidant while fatty alcohol (8 carbon chains - octyl alcohol) and fatty ester (12 carbon chains - lauric acid) derived from palm oil as well as glycerol played the role of organic dispersants/fuel. X-ray diffraction (XRD) patterns of the calcined samples exhibited three prominent peaks at ca. 2eθ = 31.9°, 34.6° and 36.4° corresponding to (100), (002) and (101) reflection planes which were well indexed to zinc oxide hexagonal phase with wurtzite structure. Additional peaks were not observed in XRD patterns suggesting that no other phases were formed during the combustion synthesis. The morphology of calcined samples produced using glycerol as fuel exhibited elongated spindle-like shapes at ca. 1 {\`i}m consisted of nanoparticles. Samples prepared using fatty alcohol as fuel exhibited hexagonal morphology with crystallites sizes of ca. 30 to 40 nm. These results suggested that palm oil derived fatty alcohols and fatty esters are alternative materials as organic dispersants in the production of metal nanoparticles using gel combustion synthesis. The resulting optical properties of ZnO nanocrystallites prepared in this study were similar to those obtain from bulk materials with energy band gap value at ca. 3.28 eV compared to 3.37 eV for the latter.",
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Razak, NAA, Shah, NNH, Misran, H, Abd. Manap, AN & Yap, BK 2014, Gel combustion synthesis and characterizations of nanocrystalline ZnO in various dispersants and mol ratio. in 4th Mechanical and Manufacturing Engineering. Applied Mechanics and Materials, vol. 465-466, pp. 1282-1286, 4th International Conference on Mechanical and Manufacturing Engineering, ICME 2013, Bangi-Putrajaya, Malaysia, 17/12/13. https://doi.org/10.4028/www.scientific.net/AMM.465-466.1282

Gel combustion synthesis and characterizations of nanocrystalline ZnO in various dispersants and mol ratio. / Razak, N. A.A.; Shah, N. N.H.; Misran, Halina; Abd. Manap, Abreeza Noorlina; Yap, Boon Kar.

4th Mechanical and Manufacturing Engineering. 2014. p. 1282-1286 (Applied Mechanics and Materials; Vol. 465-466).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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