Zinc Hydroxyacetate and Its Transformation to Nanocrystalline Zinc Oxide

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• 作者：Amir Moezzi ; Andrew McDonagh ; Annette Dowd ; Michael Cortie
• 刊名：Inorganic Chemistry
• 出版年：2013
• 出版时间：January 7, 2013
• 年：2013
• 卷：52
• 期：1
• 页码：95-102
• 全文大小：483K
• 年卷期：v.52,no.1(January 7, 2013)
• ISSN：1520-510X

文摘

The synthesis of nanocrystalline ZnO by thermal decomposition of zinc hydroxyacetate, Znb>5b>(OH)b>8b>(CHb>3b>COb>2b>)b>2b>路nHb>2b>O, was investigated. The decomposition process was examined using X-ray diffraction, thermogravimetric analysis, mass spectrometry, electron microscopy, Brunauer鈥揈mmett鈥揟eller surface area analysis, and solid-state NMR spectroscopy. Intermediate Znb>5b>(OH)b>8b>(CHb>3b>COb>2b>)b>2b>路nHb>2b>O phases form at temperatures up to 110 掳C from the starting compound Znb>5b>(OH)b>8b>(CHb>3b>COb>2b>)b>2b>路2Hb>2b>O by partial dehydration. At 110 掳C, 4 equiv of ZnO and 1 equiv of Zn(CHb>3b>COb>2b>)b>2b> are formed. Further heating causes Zn(CHb>3b>COb>2b>)b>2b> to decompose to acetone, acetic acid, acetic anhydride, and ZnO. Notably, a portion of Zn(CHb>3b>COb>2b>)b>2b> sublimes during the process. Overall, the product of the calcination is equiaxed ZnO nanocrystals of 20鈥?00 nm diameter.