高溫高壓水熱合成矽酸與鍺酸鈾;High-Temperature, High-Pressure Hydrothermal Synthesis of Uranium Silicates and Germanates

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/61907

Title:	高溫高壓水熱合成矽酸與鍺酸鈾;High-Temperature, High-Pressure Hydrothermal Synthesis of Uranium Silicates and Germanates
Authors:	李光華
Contributors:	國立中央大學化學系
Keywords:	化學
Date:	2014-03-10
Issue Date:	2014-03-11 09:46:15 (UTC+8)
Publisher:	行政院國家科學委員會
Abstract:	研究期間：10308~10407;Uranyl silicates are the most abundant group of uranium(VI) minerals and their structural chemistry has been extensively studied because an understanding of their structures may be a key to understanding the long-term performance of a geological repository for nuclear waste. We propose to synthesize new silicates and germanates of uranium, particularly those with unusual oxidation states and mixed-valence compounds. The synthesis of uranium silicophosphates and germanophosphates will also be performed to increase the diversity of the framework structures. The synthetic method is mainly high-temperature, high-pressure hydrothermal reactions in gold ampoules contained in a high-pressure reaction vessel at 500-600 ºC and 1000-2000 bar. Their crystal structures, photoluminescence properties, XPS and XANES spectroscopy will be studied.
Relation:	財團法人國家實驗研究院科技政策研究與資訊中心
Appears in Collections:	[Department of Chemistry] Research Project

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