One-step low-temperature liquid phase method for synthesis of three-dimensional porous graphene and applications in supercapacitor
作者： Lina Xu , Minqiang Wang , Le Li , Zhi Yang , Junjie Li
关键词: Supercapacitor 、 Specific surface area 、 Reducing agent 、 Graphene 、 Capacitance 、 Ethylenediamine 、 One-Step 、 Oxide 、 Materials science 、 Chemical engineering
摘要: Three-dimensional porous graphene (3DPG) has been widely used as electrode material for supercapacitors due to its high conductivity and specific surface area. Herein, 3DPG with controllable three-dimensional (3D) morphologies was successfully synthesized via using sodium ascorbate (SA) ethylenediamine (EDA) by a one-step low-temperature method. The structure reductive degree of the can be tuned adjusting addition amount reducing agent pH value oxide (GO) suspension, pore size capacitance gradually increased suitable increase EDA SA. Moreover, we found that alkaline environment is more conducive synthesis than acid environment. It worth mentioning as-prepared reached 169 F g−1 when given.
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