Insights into the Oxidation Mechanism of sp2–sp3 Hybrid Carbon Materials: Preparation of a Water-Soluble 2D Porous Conductive Network and Detectable Molecule Separation

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• 作者：Siwei YangYucheng Yang ; Peng He ; Gang Wang ; Guqiao Ding ; Xiaoming Xie
• 刊名：Langmuir
• 出版年：2017
• 出版时间：January 31, 2017
• 年：2017
• 卷：33
• 期：4
• 页码：913-919
• 全文大小：559K
• ISSN：1520-5827

文摘

A thorough investigation of the oxidation mechanism of sp²–sp³ hybrid carbon materials is helpful for the morphological trimming of graphene. Here, porous graphene (PGN) was obtained via a free radical oxidation process. We further demonstrated the difference between traditional and free radical oxidation processes in sp²–sp³ hybrid carbon materials. The sp³ part of graphene oxide was oxidized first, and well-crystallized sp² domains were reserved, which is different from the oxidation mechanism in a traditional approach. The obtained PGN shows excellent performance in the design of PGN-based detectable molecule separation or other biomedical applications.