物理化学学报Issue(7)：1274-1280,7.DOI:10.3866/PKU.WHXB201405044
氮掺杂介孔碳的制备及其电化学超电容性能
Synthesis and Electrochemical Supercapacitive Properties of Nitrogen-Doped Mesoporous Carbons
摘要
Abstract
Nitrogen-doped mesoporous carbons (NMCs) were synthesized by direct carbonization of zeolitic imidazolate framework-8 (ZIF-8) nanopolyhedrons. The surface morphology and structure were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), and surface area and pore size analyzer. The electrochemical supercapacitive properties of the NMCs were also investigated. The results showed that the NMCs had a uniform morphology, mesoporous nanostructure, and high surface area (2737 m2∙g-1). On the other hand, based on the excellent surface wettability, pseudocapacitive behavior and electrolyte accessibility resulted from N-doping and the mesoporous structure, the NMCs exhibited excellent electrochemical supercapacitive properties:a high specific capacitance (307 F∙g-1 in 1.0 mol∙L-1 H2SO4 solution, at 1 A∙g-1), good power characteristics, and satisfactory stability (the capacitance retained ratio was 96.9%after 5000 cycles even at a high current density of 10 A∙g-1).关键词
介孔碳/氮掺杂/炭化/电容性能Key words
Mesoporous carbon/Nitrogen doping/Carbonization/Capacitive property分类
化学化工引用本文复制引用
徐玲玲,张小华,陈金华..氮掺杂介孔碳的制备及其电化学超电容性能[J].物理化学学报,2014,(7):1274-1280,7.基金项目
The project was supported by the Hunan Provincial Natural Science Foundation, China (12JJ2010), Specialized Research Fund for the Doctoral Program of Higher Education, China (20110161110009), and Program for Changjiang Scholars and Innovative Research Team in University, China (PCSIRT, IRT1238).湖南省自然科学基金(12JJ2010),博士学科点专项科研基金(20110161110009)及长江学者和创新团队发展计划(PCSIRT, IRT1238)资助项目 （12JJ2010）
