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
黄玉亮 1潘昊鑫 2王超会 2张永2
作者信息
- 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
- 折叠
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.
Abstract
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Key words
cellulose/pyrolysis/activation method/electrode materials引用本文复制引用
基金项目
黑龙江省自然科学基金联合引导项目(LH2020E126)
出版年
2024
NETL
NSTL
万方数据