苯并噁嗪基N掺杂介孔碳材料电化学性能  

Study on electrochemical performance of benzoxazine-based N-doped mesoporous carbon materials

作　　者：丁帅伟 张海涵 向勇 徐丽[1] 刘国际[1] DING Shuai-wei;ZHANG Hai-han;XIANG Yong;XU Li;LIU Guo-ji(School of Chemical Engineering,Zhengzhou University,Zhengzhou 450001,China)

机构地区：[1]郑州大学化工学院,河南郑州450001

出　　处：《高校化学工程学报》2021年第5期921-926,共6页Journal of Chemical Engineering of Chinese Universities

基　　金：国家自然科学基金(51703205)。

摘　　要：为了制备高比电容、高稳定性的超级电容器电极材料,以己二胺、腰果酚、多聚甲醛为原料合成了苯并噁嗪前驱体(C-BOZ),利用介孔硅基分子筛(SBA-15)为模板剂,制备了氮掺杂有序介孔碳材料(NCC)。分别考察了C-BOZ与SBA-15质量比为1:0.6、1:0.8、1:1时对电化学性能的影响,并通过N2等温吸脱附、X射线衍射仪(XRD)、X射线光电子能谱仪(XPS)、扫描电子显微镜(SEM)对材料的形貌结构及元素组成进行表征分析。结果表明:当C-BOZ与SBA-15质量比为1:0.8时,比表面积高达1 432 m^(2)·g^(-1),所制备碳材料成功复刻出SBA-15的孔道形貌结构,电流密度为0.5 A·g^(-1)时比电容高达464 F·g^(-1),经过6 000次循环充放电仍然保持初始比容量的97.7%,具有良好的循环稳定性。In order to prepare supercapacitor electrode materials with high specific capacitance and high stability, benzoxazineprecursor(C-BOZ) was synthesized from hexanediamine, cardanol and paraformaldehyde.Nitrogen doped ordered mesoporous carbon(NCC) was prepared using mesoporous silica-based molecular sieve(SBA-15) as template. The effects of mass ratio of flooding to template(1:0.6, 1:0.8 and 1:1) on electrochemical properties of carbon materials were investigated. The morphology and elements of the materials were characterized by N_(2) isothermal adsorption desorption, X-ray diffractometer(XRD), X-ray photoelectron spectrometer(XPS) and scanning electron microscope(SEM). The results show that the specific surface area of NCC which was successfully reproduced from SBA-15 can reach 1 432 m^(2)·g^(-1). When the mass ratio of driving agent to template is 1:0.8, the specific capacitance reaches 464 F·g^(-1) with the current density of 0.5 A·g^(-1). The specific capacitance still remains 97.7% of the initial specific capacity after 6 000 cycles of charge and discharge, which indicates the material has good cycle stability.

关 键 词：苯并噁嗪 介孔碳材料 超级电容器 介孔硅基分子筛(SBA-15) 

分 类 号：TB383[一般工业技术—材料科学与工程] TQ152[化学工程—电化学工业]