乙醇/水混合溶剂热法制备BaHfO3:Ce超微粒子
Preparation of BaHfO3:Ce Ultra-fine Particles by C2H5OH/H2O Mixed Solvolthermal Method
查看参考文献18篇
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文摘
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以Ba(NO3)2和HfOCl2.8H2O为原料,KOH为矿化剂,乙醇/水作溶剂, Ce(NO3)3作为激活剂,在150220℃和1636 h的条件下,制备了掺杂Ce3+的BaHfO3超微粒子.用XRD,SEM等手段表征了粒子合成过程的物相变化及形貌特征;用荧光光度计分析了样品的激发光谱和发射光谱.结果表明,在n(Ba):n(Hf)=1:1,水热合成温度200℃,保温时间24 h,pH=13.5的条件下制备的BaHfO3:Ce粒子分散性好,形貌近球形,粒径约52 nm.当掺杂Ce3+浓度为0.3 mol%时BaHfO3发光效果最佳 |
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其他语种文摘
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The BaHfO3:Ce ultra-fine particles were prepared by C2H5OH/H2O mixed solvolthermal method, under 150-220 ℃ for 16-36 h using Ba(NO3)2 and HfOCl2·8H2O as raw materials, added KOH aqueous solution as precipitant and Ce(NO3)3 aqueous solution as activator. The phase transformation and the morphology of powders during preparation of BaHfO3:Ce powders were studied by XRD and SEM.The excitation and emission spectra of samples were analyzed by the fluor-photometer. The results show that the powders are approximately spherical particles with even particle size of about 52 nm and good dispersibility under the condition of n(Ba):n(Hf)=1:1,pH=13.5, treated at 200 ℃ for 24 h.The superior photoluminescence properties were obtained at dopping of 0.3 mol % Ce |
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来源
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人工晶体学报
,2011,40(2):486-491 【核心库】
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关键词
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BaHfO3:Ce粒子
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水热法
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物相变化
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光谱特性
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地址
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1.
沈阳化工大学材料科学与工程学院, 辽宁省稀土化学及应用重点实验室, 沈阳, 110142
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中国科学院金属研究所, 沈阳材料科学国家(联合)实验室, 沈阳, 110016
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沈阳大学机械工程学院, 沈阳, 110044
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1000-985X |
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学科
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化学;化学工业 |
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基金
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辽宁省教育厅重点实验室项目
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辽宁省科技计划项目
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辽宁省沈阳市科技计划项目
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文献收藏号
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CSCD:4179443
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