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shuihuo2012鐵蟲 (小有名氣)
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Fast and Facile Preparation of Graphene Oxide 已有1人參與
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In this study, we report an inexpensive, massively scalable, fast, and facilemethod for preparation ofgraphene oxide and reduced graphene oxide nanoplatelets. The basic strategy involved the preparationof graphite oxide (GO) from graphite through reaction with benzoyl peroxide (BPO), completeexfoliation of GO into graphene oxide sheets, followed by their in situ reduction to reduced grapheneoxide nanoplatelets. The mechanism of graphene oxide producing is mainly the generation of oxygen-containing groups on graphene sheets. In addition, insertedBPOand expansion of CO2evolved duringreaction will expand the distance between graphite layers, which are also main factors for exfoliation.Thermogravimetric analysis, Raman spectroscopy, and Fourier transform infrared spectroscopyindicated the successful preparation of GO. X-ray diffraction proved the mechanism of intercalationand exfoliation of graphite. Transmission electronmicroscopy and atomic force microscopy were used to demonstrate the structure of produced graphene oxide and reduced graphene oxide nanoplatelets。 本文講解了一種快速制備氧化石墨的方法:用BPO進行氧化。然后用原位還原的方法進行還原得到RGO。 |
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