| 用草酸胍制备钴酸盐尖晶石 |
| PREPARATION OF COBALTITE SPINELS USING GUANIDINE OXALATE |
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| 摘要: 本文采用先驱物法合成钴酸盐尖晶石MCo2O4(M=Zn,Ni,Cu,Mg,Cd,Mn)。以草酸胍作为沉淀剂，在溶液中以共沉淀的方法合成草酸盐先驱物。采用热分析(TG和DTA)、化学元素分析、红外光谱等手段对先驱物进行分析表征。通过红外光谱、X射线粉末衍射、扫描电镜对产物进行表征。产物的平均粒度范围在3.5～8.8 μm之间。 |
| 关键词: 先驱物 共沉淀 钴酸盐尖晶石 草酸胍 热分析 |
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| Abstract: A method for the preparation of fine-particle cobaltites MCo2O4(M=Zn,Ni,Mg,Cu,Mn,Cd) at low temperature has been described. Oxalate precursors have been prepared by coprecipitation means using guanidine oxalate as a precipitating agent and characterized by thermal analysis (TG and DTA), chemical analysis and infrared spectra. Formation of cobaltites has been confirmed by thermogravimetry(TG), IR, X-ray diffraction and SEM. The particles are fine, with an average particle size ranging from 3.5 to 8.8 μm. |
| Keywords: precursors coprecipitation cobaltite spinel guanidine oxalate thermal analysis |
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| 张克立,袁继兵,孙聚堂,张晴川.用草酸胍制备钴酸盐尖晶石[J].无机化学学报,1997,13(3):336-339. |
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