氮磷共掺杂多孔炭@二氧化锰复合材料的制备及电容性能研究
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- 英文论文题名：Preparation and Capacitance of Nitrogen and Phosphorus Co-doped Porous Carbon @Manganese Dioxide
- 论文作者：陈晨 ; 蔡江涛 ; 杜美利 ; 刘国阳 ; 张亚婷
- 英文论文作者：Chen Chen ; J.Cai ; M.Du ; G.Liu ; Y.Zhang ; College of Chemistry & Chemical Engineering ; Xi'an University of Science and Technology
- 年：2016
- 作者机构：西安科技大学化学与化工学院;
- 论文关键词：氮磷共掺杂多孔炭 ; 二氧化锰 ; 水热法 ; 电容性能
- 会议召开时间：2016-07-01
- 会议录名称：中国化学会第30届学术年会摘要集-第二十九分会：电化学材料
- 语种：中文
- 分类号：TB332;TM53
- 学会代码：ZGHY
- 会议名称：中国化学会第30届学术年会-第二十九分会 ; 电化学材料
- 会议地点：中国辽宁大连
- 主办单位：中国化学会
- 学会名称：中国化学会
- 页数：1
- 文件大小：255k
- 原文格式：D
- 会议级别：全国
摘要
随着电动汽车、清洁能源存储及便携式电子产品的快速发展,开发与之相匹配的兼具高能量、高功率、长寿命的电化学储能器件如超级电容器成为当前的迫切需求。超级电容器具有高功率密度、强充放电能力、长循环寿命及高安全性等诸多显著优势,但较低的能量密度限制了其在各领域中的进一步应用。为此,我们提出以高比表面积的氮磷共掺杂多孔碳为载体,采用水热法制备了一系列的氮磷共掺杂多孔炭@二氧化锰复合材料,以其为超级电容器电极材料进行研究。利用物理吸附仪、X射线衍射仪、扫描电镜和透射电镜对氮磷共掺杂多孔炭@二氧化锰复合材料的孔结构、比表面积、形貌结构及组成进行了表征,并通过循环伏安与恒流充放电等方法测试了复合材料的电容性能。结果表明,当水热合成10 h时,所制备的复合材料在0.5A/g电流密度下,比电容可达到125.7F/g,且循环稳定性较好。
In recent years, supercapacitors have drawn enormous attentions due to its high power density, excellent reversibility and long cycle life. But the low energy density limits supercapacitors further application in various fields. Therefore, we proposed nitrogen and phosphorus co-doped porous carbon as the carrier based on its high specific surface area and heteroatom, a series of various ratio of manganese dioxide and porous carbon composites(NP-PC@MnO_2)were prepared through hydrothermal method. The surface morphology and pore structure of NP-PC@MnO_2 composites were researched by physical adsorption, XRD, SEM and TEM. The capacitance performance of composites were evaluated by CV and GCD. The results indicate that the specific capacity of NP-PC@MnO_2 can reach 125.7F/g and have a good cycle stability, which were the sample through hydrothermal synthesis time of 10 h and tested at a current density of 0.5A/g.
In recent years, supercapacitors have drawn enormous attentions due to its high power density, excellent reversibility and long cycle life. But the low energy density limits supercapacitors further application in various fields. Therefore, we proposed nitrogen and phosphorus co-doped porous carbon as the carrier based on its high specific surface area and heteroatom, a series of various ratio of manganese dioxide and porous carbon composites(NP-PC@MnO_2)were prepared through hydrothermal method. The surface morphology and pore structure of NP-PC@MnO_2 composites were researched by physical adsorption, XRD, SEM and TEM. The capacitance performance of composites were evaluated by CV and GCD. The results indicate that the specific capacity of NP-PC@MnO_2 can reach 125.7F/g and have a good cycle stability, which were the sample through hydrothermal synthesis time of 10 h and tested at a current density of 0.5A/g.
引文
[1]Zhang,X.;Ran,F.;Fan,H.;Tan,Y.,et al.Journal of Energy Chemistry.2014,23(1),82
[2]Li,H.;Jiang,L.;Cheng,Q.;He,Y.,et al.Electrochimica Acta.2015,164:252
[2]Li,H.;Jiang,L.;Cheng,Q.;He,Y.,et al.Electrochimica Acta.2015,164:252