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Li_2CO_3和MnCO_3合成LiMn_2O_4的改进 被引量:1

An improvement of LiMn_2O_4 synthesized from Li_2CO_3 and MnCO_3
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摘要 Li2 CO3 和MnCO3 中加入少量柠檬酸或草酸 ,在 5 5 0~ 75 0℃间 ,焙烧 6~ 10h制备了LiMn2 O4 。用TG/DTA ,XRD ,TEM对样品的结构和性质进行了研究。发现在 6 5 0℃焙烧 6h制备的样品具有完整的尖晶石结构 ,样品的平均粒度为 LiMn 2O 4 samples are prepared by heating a mixture of Li 2CO 3, MnCO 3 and C 6H 6O 7H 2O or a mixture of Li 2CO 3, MnCO 3 and H 2C 2O 4·2H 2O in air at 550~750℃ for 6h~10h. Their structure and chemical performance are studied using X-ray diffraciton, TG/DTA and TEM. It has been found that then reaction temperature is at 650℃ for 6h, a well ordered spinel LiMn 2O 4 stucture is produced. Particle sizes of powder are about 40nm.
出处 《贵州师范大学学报(自然科学版)》 CAS 2001年第4期43-45,共3页 Journal of Guizhou Normal University:Natural Sciences
基金 贵州省教委资助项目
关键词 LIMN2O4 草酸 柠檬酸 合成 尖晶石结构 碳酸锂 碳酸锰 锂离子电池 正极材料 Spinel LiMn 2O 4,Li 2CO 3, MnCO 3, ethane diacid, citric acid
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参考文献4

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同被引文献17

  • 1唐文华,张艾飞,邹洪涛,蒋天智,刘吉平.CdS纳米材料合成方法研究进展[J].贵州师范大学学报(自然科学版),2006,24(2):119-124. 被引量:3
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