氮掺杂生物质多孔碳材料的制备及其在超级电容器中的应用  

Preparation of nitrogen-doped biomass porous carbon materials and its application in supercapacitors

作　　者：黄玉亮 潘昊鑫 王超会[2] 张永[2] HUANG Yu-liang;PAN Hao-xin;WANG Chao-hui;ZHANG Yong(Heilongjiang Provincial Institute of Planning and Design for Building Materials Industry,Harbin 150080,China;School of Materials Science and Engineering,University of Qiqihar,Qiqihar 161006,China)

机构地区：[1]黑龙江省建筑材料工业规划设计研究院,黑龙江哈尔滨150001 [2]齐齐哈尔大学材料科学与工程学院,黑龙江齐齐哈尔161006

出　　处：《化学工程师》2024年第8期9-12,8,共5页Chemical Engineer

基　　金：黑龙江省自然科学基金联合引导项目(No.LH2020E126)。

摘　　要：以碳化后的纤维素为基底,KOH为活化剂,尿素作为掺杂剂,采用热解法和活化法相结合成功制备了氮掺杂生物质多孔碳(N-PBCs),并通过一系列的表征手段证明了所制备的N-PBCs电极材料具有良好的孔径结构和大量的缺陷结构。此外,基于N-PBCs的水系对称超级电容器的最高比电容达到了230.1F·g^(-1)(电流密度0.3A·g^(-1)),当电流密度增加到10A·g^(-1)时,其比电容量保持率仍高达84.7%。这为下一代新型储能器件材料的开发提供了新思路。Nitrogen-doped biomass porous carbon(N-PBCs)were successfully prepared by pyrolysis and activation method using carbonized cellulose as substrate,KOH as activator and urea as dopant.It was demonstrated by a series of characterization that the prepared N-PBCs electrode materials had good pore structure and a large number of defect structures.In addition,the highest specific capacitance of the aqueous symmetric supercapacitor based on N-PBCs reached 230.1F·g^(-1)(0.3A·g^(-1)).When the current density increases to 10A·g^(-1),the specific capacitance retention rate is still as high as 84.7%.This provides a new idea for the next generation of new energy storage devices.

关 键 词：纤维素 热解法 活化法 电极材料 

分 类 号：TQ152[化学工程—电化学工业]