排序方式: 共有49条查询结果,搜索用时 15 毫秒
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THERMALDECOMPOSITIONOFTHREECOMMERCIALPOLYPHASEAMMONIUMMOLYBDATEYinZhoulan;LiXinhai;ZhouGuizhi;ZhaoQinsheng;ChenShaoyi(Departm... 相似文献
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LiVPO4F/C复合正极材料的合成与性能 总被引:3,自引:0,他引:3
利用碳热还原法,通过两步反应合成了LiVPO4F/C复合正极材料.主要研究了球磨、碳含量和电解液对样品结构和电化学性能的影响.结果表明球磨2 h在750℃下能合成纯的LiVPO4F产品,剩余碳的存在使LiVPO4F的粒径减小且分布较为均匀,同时提高了颗粒之间的导电性.对样品进行电化学性能测试表明,含碳量为1.83%的LiVPO4F/C的样品比容量和循环性能都得到显著改善;合适的电解液可以明显提高样品LiVPO4F的电化学性能.含碳量为1.83%的LiVPO4F/C的复合材料以1 mol.L-1LiPF6/EC+EMC+DMC(体积比1∶1∶1)为电解液,在0.2 C的倍率下放电时,其首次放电容量为119 mAh.g-1,放电平台在4.2 V左右(vs.Li),循环30次后比容量为89 mAh.g-1. 相似文献
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The effect of metallic cations on the Si-O(br) bond and the Si-O(ter) bond was studied with CNDO/2 MO calculations. The characteristics of them were discussed, which were found to vary with the bonding and coordi nation situation of oxygen as well as the effect of metallic cations on oxygen. The conclusions obtained may be well used in the fields of mineralogy, geochemistry, silicate materials, pyrometallurgy and so on. 相似文献
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Yin Zhoulan Chen Qiyuan Zhang Hengzhong Zhou Guizhi Li Yuangao Zhang Pingmin Department of Chemistry Central South University of Technology Changsha 《中国有色金属学会会刊》1997,(1)
PREPARATIONANDPROPERTIESOFTHEMICROPOWDERPHASEANDANEWPHASEOFAMMONIUMTETRAMOLYBDATES①YinZhoulan,ChenQiyuan,ZhangHengzhong,Zhou... 相似文献
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MASSTRANSFERTOLIQUID-LIQUIDINTERFACE¥LIXinhai;YINZhoulan(Central-SouthUniversityofTechnology,Changsha410083,China)Abstract:Ex... 相似文献