Preparation of N-doped porous carbons via high internal phase emulsion template
Preparation of N-doped porous carbons via high internal phase emulsion template作者机构：Department of Materials-Oriented Chemical Engineering College of Chemical Engineering Fuzhou University
出 版 物：《Progress in Natural Science:Materials International》 (自然科学进展·国际材料(英文))
年 卷 期：2021年第31卷第2期
页 面：270-278页
核心收录：
学科分类：081702[工学-化学工艺] 080801[工学-电机与电器] 0808[工学-电气工程] 08[工学] 0817[工学-化学工程与技术] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学]
基 金：National Natural Science Foundation of China(no. 51703030 21676057 and 21504025) for financial supports
主 题：High internal phase emulsion N-doped porous carbon Melamine Supercapacitor
摘 要：Heteroatom doped porous carbon materials have great application prospects in supercapacitors. In the present study, an approach of preparing N-doped porous carbon（NPC） was proposed from porous poly（resorcinolformaldehyde-melamine） monoliths which were prepared by high internal phase emulsion（HIPE） template.Melamine was dissolved in the external phase and copolymerized, acting as the N source and porous structure regulator to provide micropore-dominant NPCs. The structure, morphology, specific surface area（SSA）, and chemical composition of the samples were systematically studied. With melamine content increasing, N-doping content in NPC increased while the SSA of NPC increased at first and then decreased. When the content of N is 8.42 wt%, the obtained NPC showed the highest SSA of about 1670 m;g;. Furthermore, high N doping content could improve the electronic conductivity and provide additional pseudocapacitance of NPC. Under the combined influences of proper N content and high porosity, the prepared NPC electrodes revealed excellent specific capacitance(228.0 Fg;at 1.0 A g;, favorable circling stability, and prominent rate capability in a threeelectrode system with 6 M KOH solution as the electrolyte.
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