教師資料查詢 | 類別: 期刊論文 | 教師: 余宣賦 Yu, Hsuan-fu (瀏覽個人網頁)

標題:Effects of heating atmosphere on formation of crystalline citrate-derived LaAlO3 nanoparticles
學年
學期
出版(發表)日期2011/02/01
作品名稱Effects of heating atmosphere on formation of crystalline citrate-derived LaAlO3 nanoparticles
作品名稱(其他語言)
著者Yu, Hsuan-Fu; Guo, Yu-Man
單位淡江大學化學工程與材料工程學系
出版者Amsterdam: Elsevier BV
著錄名稱、卷期、頁數Journal of Alloys and Compounds 509(5), pp.1984-1988
摘要Crystalline LaAlO3 nanoparticles were synthesized at relative low temperatures, using a citrate-precursor technique. La(NO3)3, Al(NO3)3, and C3H4(OH)(COOH)3, in a molar ratio of 1:1:1, were dissolved in deionized water. NH4OH was used to adjust the aqueous solution to pH 7. After drying, the citrate precursors were charred at 350 °C, followed by calcination at different temperatures, in air or oxygen atmosphere. The thermochemical properties of the resultant particles were analyzed using thermogravimetric and differential thermal analysis, X-ray diffractometry, infrared spectroscopy, scanning electron microscopy, and transmission electron microscopy. Effects of calcination temperature and heating atmosphere on the formation of crystalline LaAlO3 nanoparticles were investigated. In O2 atmosphere, clacining the citrate-derived charred solid precursor at 700 °C for 3 h can decompose all intermediates to produce pure LaAlO3 nanoparticles (particle sizes ≤ 100 nm) with an average crystallite size of about 24 nm and possessing high sinterability.
關鍵字Lanthanum aluminate; Citrate precursor method; Thermal analysis; Calcination atmosphere; Ceramic synthesis
語言英文
ISSN0925-8388
期刊性質國外
收錄於SCI;EI
產學合作
通訊作者Yu, Hsuan-Fu
審稿制度
國別荷蘭
公開徵稿
出版型式紙本
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