Thermal diffusivity of zinc-aluminum layered double hydroxide using PVDF photoflash technique
Thermal diffusivity of zinc-aluminum layered double hydroxides synthesized at different molar ratios of Zn to Al, at pH 7 and 8 were measured using polyvinlidene diflouride (PVDF) photoflash technique. The samples were prepared using Zn(NO3)2 and Al(NO3)2 solutions by dropwise addition of NaOH solut...
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| Format: | Article |
| Language: | English |
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David Publishing
2010
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| Online Access: | http://psasir.upm.edu.my/id/eprint/17393/ http://psasir.upm.edu.my/id/eprint/17393/1/2012020872891697.pdf |
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| author | Mat Yunus, Wan Mahmood Ghaziean, Maryam Ranjbar Hussein, Mohd Zobir Lim, Mei Yee |
| author_facet | Mat Yunus, Wan Mahmood Ghaziean, Maryam Ranjbar Hussein, Mohd Zobir Lim, Mei Yee |
| author_sort | Mat Yunus, Wan Mahmood |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | Thermal diffusivity of zinc-aluminum layered double hydroxides synthesized at different molar ratios of Zn to Al, at pH 7 and 8 were measured using polyvinlidene diflouride (PVDF) photoflash technique. The samples were prepared using Zn(NO3)2 and Al(NO3)2 solutions by dropwise addition of NaOH solution with vigorous stirring under nitrogen atmosphere. The different ratios of Zn to Al were obtained by changing the molar ratio of Zn(NO3)2 to Al(NO3)2 solutions. The slurry formed was kept at 70 ˚C in an oil bath shaker for 18 h and then filtered, washed and dried in an oven for another 48 h at 70 ˚C. A simple photoflash and PVDF transducer were used as light source and thermal wave detector, respectively. All the measurements of thermal diffusivity of Zn-Al layered double hydroxide were carried out at room temperature. For Zn/Al > 3, the thermal diffusivity of all series of sample prepared at pH = 7 and 8 increase with the increasing of Zn composition. Thermal diffusivity values of zinc-aluminum layered doubled hydroxide synthesized at pH 8 are higher than the values obtained for samples prepared at pH = 7 except for Zn/Al higher than 5. |
| first_indexed | 2025-11-15T08:11:42Z |
| format | Article |
| id | upm-17393 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T08:11:42Z |
| publishDate | 2010 |
| publisher | David Publishing |
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| spelling | upm-173932016-04-08T09:37:09Z http://psasir.upm.edu.my/id/eprint/17393/ Thermal diffusivity of zinc-aluminum layered double hydroxide using PVDF photoflash technique Mat Yunus, Wan Mahmood Ghaziean, Maryam Ranjbar Hussein, Mohd Zobir Lim, Mei Yee Thermal diffusivity of zinc-aluminum layered double hydroxides synthesized at different molar ratios of Zn to Al, at pH 7 and 8 were measured using polyvinlidene diflouride (PVDF) photoflash technique. The samples were prepared using Zn(NO3)2 and Al(NO3)2 solutions by dropwise addition of NaOH solution with vigorous stirring under nitrogen atmosphere. The different ratios of Zn to Al were obtained by changing the molar ratio of Zn(NO3)2 to Al(NO3)2 solutions. The slurry formed was kept at 70 ˚C in an oil bath shaker for 18 h and then filtered, washed and dried in an oven for another 48 h at 70 ˚C. A simple photoflash and PVDF transducer were used as light source and thermal wave detector, respectively. All the measurements of thermal diffusivity of Zn-Al layered double hydroxide were carried out at room temperature. For Zn/Al > 3, the thermal diffusivity of all series of sample prepared at pH = 7 and 8 increase with the increasing of Zn composition. Thermal diffusivity values of zinc-aluminum layered doubled hydroxide synthesized at pH 8 are higher than the values obtained for samples prepared at pH = 7 except for Zn/Al higher than 5. David Publishing 2010 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/17393/1/2012020872891697.pdf Mat Yunus, Wan Mahmood and Ghaziean, Maryam Ranjbar and Hussein, Mohd Zobir and Lim, Mei Yee (2010) Thermal diffusivity of zinc-aluminum layered double hydroxide using PVDF photoflash technique. Journal of Materials Science and Engineering, 4 (3). pp. 7-10. ISSN 1934-8959; ESSN: 1934-8967 http://www.davidpublishing.com/show.html?3304 |
| spellingShingle | Mat Yunus, Wan Mahmood Ghaziean, Maryam Ranjbar Hussein, Mohd Zobir Lim, Mei Yee Thermal diffusivity of zinc-aluminum layered double hydroxide using PVDF photoflash technique |
| title | Thermal diffusivity of zinc-aluminum layered double hydroxide using PVDF photoflash technique |
| title_full | Thermal diffusivity of zinc-aluminum layered double hydroxide using PVDF photoflash technique |
| title_fullStr | Thermal diffusivity of zinc-aluminum layered double hydroxide using PVDF photoflash technique |
| title_full_unstemmed | Thermal diffusivity of zinc-aluminum layered double hydroxide using PVDF photoflash technique |
| title_short | Thermal diffusivity of zinc-aluminum layered double hydroxide using PVDF photoflash technique |
| title_sort | thermal diffusivity of zinc-aluminum layered double hydroxide using pvdf photoflash technique |
| url | http://psasir.upm.edu.my/id/eprint/17393/ http://psasir.upm.edu.my/id/eprint/17393/ http://psasir.upm.edu.my/id/eprint/17393/1/2012020872891697.pdf |