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固相球磨-水热法制备Mn_(1.56)Co_(0.96)Ni_(0.48)O_4纳米粉体及其NTC性能 被引量:3
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作者 马仁君 常爱民 +2 位作者 高博 孔雯雯 夏军波 《功能材料》 EI CAS CSCD 北大核心 2014年第20期20146-20149,共4页
采用固相球磨-水热法制备了Mn1.56Co0.96Ni0.48O4纳米粉体,研究了水热反应温度对产物粉体结构和形貌的影响,讨论了固相球磨-水热反应机理。采用X射线衍射仪、扫描电子显微镜和直流阻温测试仪对样品结构、形貌和电性能进行表征,结果表明... 采用固相球磨-水热法制备了Mn1.56Co0.96Ni0.48O4纳米粉体,研究了水热反应温度对产物粉体结构和形貌的影响,讨论了固相球磨-水热反应机理。采用X射线衍射仪、扫描电子显微镜和直流阻温测试仪对样品结构、形貌和电性能进行表征,结果表明固相球磨-水热法由于结合了固相球磨法和一步水热法的优势,因此可在低结晶温度下获得粒径小、分散度高的四方尖晶石结构纳米粉体。电学性能测试结果表明在193~373 K测试温区内,样品所制得陶瓷材料具有明显的负温度系数热敏电阻特性,材料常数B值处于3396~3 625 K。 展开更多
关键词 球磨-水热法 纳米粉体 Mn1.56Co0.96Ni0.48O4 负温度系数 热敏电阻
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Electrochemical performance of LiFePO_(4)-Li_(3)V_(2)(PO_4)_3 composite material prepared by solid-hydrothermal method 被引量:1
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作者 郭孝东 钟本和 +3 位作者 刘恒 宋杨 文嘉杰 唐艳 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2011年第8期1761-1766,共6页
LiFePO4-Li3V2(PO4)3 composites were synthesized by solid-hydrothermal method and by ball milling,respectively.The electrochemical performance of the solid-hydrothermally obtained materials(C-LFVP) was significantl... LiFePO4-Li3V2(PO4)3 composites were synthesized by solid-hydrothermal method and by ball milling,respectively.The electrochemical performance of the solid-hydrothermally obtained materials(C-LFVP) was significantly improved compared with LiFePO4(LFP) and Li3V2(PO4)3(LVP),and it was also much better than that of the ball-milled LiFePO4-Li3V2(PO4)3(P-LFVP).C-LFVP and P-LFVP both had four REDOX peaks(voltage plateaus),which coincided with that of LFP and LVP.Some new trace substances were found in C-LFVP which had more perfect morphology,this was responsible for the better electrochemical performance of C-LFVP than P-LFVP. 展开更多
关键词 LIFEPO4 Li3V2(PO4)3 composite materials solid-hydrothermal
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