Synthesis of ZnO Polycrystalline Flakes Using Sol-Gel Method

Autor:	Yen Cheng Chen, Ming Hung Chuang, Yung Kuan Tseng
Rok vydání:	2011
Předmět:	Materials science Scanning electron microscope General Engineering chemistry.chemical_element Nanotechnology Zinc law.invention Crystallinity chemistry Chemical engineering law Calcination Crystallite Powder diffraction Sol-gel Wurtzite crystal structure
Zdroj:	Advanced Materials Research. 320:135-139
ISSN:	1662-8985
DOI:	10.4028/www.scientific.net/amr.320.135
Popis:	This study proposes a novel sol-gel method of fabricating the two-dimensional flakes polycrystalline zinc oxide (ZnO). Apply zinc acetate dehydrate in glycerol and hydrolyzed to get the precursor zinc alkoxide particles at 160°C, and self-assemble into flakes ZnO nanostructures, and then got higer crystallinity polycrystalline ZnO after calcination for one hour at 500°C. Field-emission scanning electron microscopy (FE-SEM) was used to observe the morphology of the flakes. Its size got to a few μm2. Analyze the crystal structure and crystallinity by X-ray powder diffraction (XRD). After calcination for one hour at 500°C, we can determine it is the hexagonal wurtzite structure of ZnO. And TGA/DSC to observe the loss and phase change of the solution. The Study has successfully synthesized ZnO polycrystalline flakes by sol-gel method.
Databáze:	OpenAIRE
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