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伊人何方

金虫 (小有名气)


[交流] 电沉积石墨烯

我用石高全课题组在scientific reports中的方法,在GO的水溶液中加入高氯酸锂,通过电化学方法在制备石墨烯,但是我的GO的浓度在0.5mg/ml时,加入0.05M的高氯酸锂是,溶液就开始团聚了,有人也是做电沉积的吧,求解释,感激不尽
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胡琪

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Graphene oxide (GO) was synthesized
by the modification of Hummers’s method and described
elsewhere.28,35 Graphene oxide (100 mg) was placed in a Petri
dish set in a vacuum desiccator, where a piece of filter paper
saturated with the chemical reducing agent hydrazine (80 wt %
water solution, 5 mL) was placed in the desiccator for the
reduction. The reducing reaction time of 72 h gave the best
results for the capacitor performance as discussed below and
this sample was assigned as GM-A. Two other graphene samples
have also been prepared: sample GM-B, reduced in 24 h by
hydrazine, and sample GM-C, obtained from GM-B after being
further annealed at 400 °C for 3 h in argon
2楼2013-11-02 13:56:08
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