Synthesis of Alumina Using the Solvothermal Method
Meor Yusoff M.S., and Masliana Muslimin, (2007) Synthesis of Alumina Using the Solvothermal Method. Malaysian Journal of Analytical Sciences, 11 (1). pp. 262-268. ISSN 13942506 Full text not available from this repository. Official URL: http://pkukmweb.ukm.my/~mjas/v11_n1/39_493C4_IR_Iz-1.pdf AffiliationsMalaysian Institute for Nuclear Technology Research AbstractThe paper describes work done on synthesis of a- and ?-alumina by using the solvothermal technique. Synthesis of both these aluminas involves the transition reactions of the aluminium hydroxide into alumina by a dehydroxylation process. As there are many forms of transition aluminas produced during this process, x-ray diffraction (XRD) technique was used to identify a-alumina and ?-alumina. After establishing the optimum conditions for the production of a single-phase a- and ?-aluminas, characteristic study on the product was performed. An important parameter in establishing nanosized powders is
their crystallite size and analysis of the ?-alumina shows that it is a nanosized powder with a size of 28 nm while the aalumina has a crystallite size of 200 nm. Other properties analysed include morphology, surface area and particle size.
Kertas kerja ini menunjukkan bagaimana sintesis a-alumina dan ?-alumina boleh dilakukan mengguna teknik solvothermal. Sintesis kedua-dua alumina ini melibatkan tindakbalas peralihan aluminium hidroksida kepada alumina melalui proses dehydroxylation. Terdapat banyak bentuk alumina peralihan yang dihasilkan semasa proses ini maka alat XRD digunakan untuk menentu a-alumina dan ?-alumina. Setelah mendapat keadaan optimum bagi penghasilan fasa tunggal bagi kedua-dua alumina tersebut, kajian pencirian ke atas produk ini dijalankan. Satu parameter penting didalam penentuan serbuk bersaiz nano ialah saiz hablur dan analisis yang dijalankan terhadap ?-alumina yang dihasilkan memberikan nilai 28 nm manakala bagi a-alumina pula nilainya ialah 200 nm. Sifat-sifat lain yang ditentukan termasuk morfologi, luas permukaan dan saiz zarah. | Item Type: | Journal |
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| Additional Information: | The authors wish to extend their gratitudes to all parties that had supported the project in particular to the MTEC staff and manager, BTI director and MINT management. |
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| Keywords: | a-alumina, ?-alumina, solvothermal, crystallite size, XRD |
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| Subjects: | Q Science |
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| ID Code: | 1054 |
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