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溶胶凝胶快速热解法制备ZrO₂超细粉体

Preparation of ZrO₂ Ultrafine Powder by Rapid Themolysis Approach with Peptizated-gel

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【Author】 WANG Yuanyang 1,2 , ZHAO Tiansheng1, LI Yongxin1, SUN Yuhan2,GAO Yinben2(1. Key Laboratory of Energy Source & Chemical Engineering, Ningxia University, Ningxia Yinchuan 750021; 2. State key Laboratory of Coal Conversion,Institute of Coal Chemistry,

【机构】宁夏大学能源化工重点实验室!宁夏银川750021；中国科学院山西煤炭化学研究所煤转化国家重点实验室；山西太原030001；中国科学院山西煤炭化学研究所煤转化国家重点实验室!山西太原030001； ?；

【摘要】采用溶胶凝胶快速热解法制备了ZrO2 超细粉体 ,详细考察了各种制备参数对胶凝时间以及样品性质的影响规律。结果表明 :胶凝时间受溶液中脲含量及胶凝温度影响显著 ;而热解温度、胶溶剂用量、胶凝温度和溶液组成对样品的性状、比表面积、孔分布及粒径均有不同程度的影响更多还原

【Abstract】 Rapid themolysis approach with peptizated-gel is employed to prepare ZrO 2 ultrafine powder, and the effects of preparation parameters on the gelation time and the properties of powders are well investigated. The results indicate that the gelation time depended on both the urea amount and gelation temperature,while the themolysis temperature, peptizer amount, gelation temperature and solution composistion show the effects at various degrees on the morphology, BET surface area, pore distribution and particle size of powders.更多还原