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Synthesis and separation of mellitic acid and graphite oxide colloid through electrochemical oxidation of graphite in deionized water |
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| Authors: | Ai-Li Cui Guo-Xing Feng Ya-Fan Zhao Hui-Zhong Kou Hong Li Guang-Hua Zhu Ho-Soon Hwang Hee-Chang Oh Young-Jin Kwon Doo-Chul Lee |
| Institution: | 1. Chemistry Department, Tsinghua Univeristy, Beijing 100084, China;2. Nanoscale Physics and Devices Laboratory, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, PR China;3. Korea Samchang Enterprise Co., Ltd., Nano Institute, Ulsan 689871, South Korea |
| Abstract: | Electrochemical oxidation of graphite anode in deionized water at galvanostatic mode is investigated. It is found that mellitic acid and graphite oxide colloid (>20 nm) are coexisted as main products, as identified by XRD and TEM, FTIR and XPS. They can be separated successfully through several procedures. A few amounts of graphene and graphene rolls are also appeared as co-products. |
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