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tang7

木虫 (初入文坛)

[求助] 固相法合成磷酸铁锂时有焦磷酸盐杂相的原因 已有1人参与

如题,本人用固相法合成磷酸铁锂,XRD显示有Li4P2O7和Fe2P2O7生成,请教各位原因和解决办法。合成流程是:LiF、草酸亚铁、磷酸二氢铵以1:1:1比例,加入乙醇分散剂,400rpm球磨4个小时后烘干,400度预烧8小时,研磨后600度煅烧24小时,煅烧气氛是氩氢混合气。
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gy518

木虫 (著名写手)

【答案】应助回帖

★ ★ ★ ★ ★ ★ ★ ★ ★ ★
感谢参与,应助指数 +1
tang7: 金币+5, ★★★很有帮助 2014-10-20 19:53:58
tang7: 金币+5, 谢谢你,我提高温度试试 2014-10-20 19:54:39
600度合成是不是温度有点低呀?
一般好像都是700左右!
学无止境
2楼2014-10-20 09:50:14
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340097923

木虫 (小有名气)

楼主合成出来纯相了么,找到原因了么
Myzone
3楼2014-12-30 14:01:59
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