Page 51 - 201810
P. 51
第 35 卷第 10 期 精 细 化 工 Vol.35, No.10
2018 年 10 月 FINE CHEMICALS Oct. 2018
功能材料
氮掺杂多孔石墨碳的制备及储能特性
1
1
1
2*
孙 立 ,徐立洋 ,李宏扬 ,杨 颖
(1. 齐齐哈尔大学 化学与化学工程学院,黑龙江 齐齐哈尔 161006;2. 长春理工大学 化学与环境学院,
吉林 长春 130022)
摘要:为得到高储能特性的超级电容器电极材料,以价格低廉的生物质——海带为碳源、三聚氰胺为氮源,通
过聚合-NaOH 活化法合成出纳米级氮掺杂多孔石墨化碳材料(NPGC)。通过 XRD、BET、Raman 和 XPS 测试
2
手段对其进行了表征,结果显示:片层结构的 NPGC 具有大的比表面积(1771 m /g)、高的氮含量〔x(N)=6.27%〕
和良好的石墨化强度(I D /I G =2.84)并对材料进行了循环伏安、恒电流充放电和交流阻抗性能测试,结果表明:
在电流密度为 1 A/g 时,NPGC 比电容高达 267 F/g,5000 次恒流充放电循环后,其比电容仍为初始比电容的
99.9%,具有优异的储能特性。
关键词:海带;氮掺杂;石墨碳;储能特性;功能材料
中图分类号:TQ314 文献标识码:A 文章编号:1003-5214 (2018) 10-1659-08
Synthesis and Energy Storage Properties of Nitrogen-doped
Porous Graphite Carbon
2*
1
1
1
SUN Li , XU Li-yang , LI Hong-yang , YANG Ying
(1. School of Chemistry and Chemistry Engineering, Qiqihar University, Qiqihar 161006, Heilongjiang, China; 2. College of
Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun 130022, Jilin,
China)
Abstract: To obtain electrode materials with high performance of supercapacitor, porous graphite carbon
with high nitrogen level (NPGC) was prepared via a novel aggregation-NaOH activation route, in which
low-cost kelp and melamine severed as carbon and nitrogen source, respectively. The as-prepared samples
were characterized by XRD, BET, Raman and XPS. The results showed that the resulting NPGC with a
2
lamellar structure displayed a large surface area of 1771 m /g and a high graphite degree (I D/I G=2.84) and
possessed a high nitrogen content of 6.27 atomic percentage. In addition, the electrochemical properties of
the samples were examined using cyclic voltammetry (CV), galvanostatic charge-discharge (GCD) and
electrochemical impedance spectroscopy (EIS). As a result, the specific capacitance of the NPGC material
reached up to 267 F/g at 1 A/g. Furthermore, the specific capacitance of the sample was still 99.9% of the
initial specific capacitance after 5000 cycles. Thus, the synthesized material had excellent energy storage
properties.
Key words: kelp; nitrogen-doping; graphite carbon; energy storage property; functional materials
Foundation items: National Natural Science Foundation of China (21501104, 21601018); Natural Science
Foundation of Heilongjiang Province (B2015014); University Nursing Program for Young Scholars with
Creative Talents in Heilongjiang Province (UNPYSCT-2016088); Science and Technology Program of
Qiqihar City(GYGC-201707)
海带作为可再生的生物质,在海洋中广泛存在。 由于其良好的官能特性,已经被广泛地应用在食品、
收稿日期:2017-09-17; 定用日期:2018-03-13; DOI: 10.13550/j.jxhg.20170753
基金项目:国家自然科学基金青年资助项目(21501104,21601018);黑龙江省自然科学基金项目(B2015014);黑龙江省普通
本科高等学校青年人才培养计划(UNPYSCT-2016088);齐齐哈尔市科技计划项目(GYGC-201707)
作者简介:孙 立(1984—),女,副教授,博士。联系人:杨 颖(1982—),女,副教授,E-mail:yangying0807@126.com。