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lfw3862067

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[求助] 用LiBF4作为支持电解质,玻碳电极会出现Li嵌入的峰吗? 已有1人参与

如题,现在用LiBF4作为支持电解质,DMF作为溶剂。用玻碳电极扫CV,总是在-1.6V左右有一个还原峰,并且第二个循环就很小了。这是Li的嵌入吗?还是我的电解质或电极表面有杂质??我的对电极和参比电极都是Pt丝。
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kangxu

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【答案】应助回帖

感谢参与,应助指数 +1
玻璃碳无嵌锂结构,因为它几乎没有石墨化成分。
用铂作参比电势不是太可靠,不过可以肯定-1.6伏是在锂嵌入电位之上,可能是水或氢还原锋。
2楼2014-11-05 13:44:08
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