采用氧化石墨(GO)还原法制备石墨烯(GNS),以氨水为沉淀剂,在石墨烯存在的情况下,通过Co2+和Ni2化学共沉积的方法合成了石墨烯/钴镍双氢氧化物复合电极材料,采用红外光谱(FT-IR)、X射线衍射(XRD)、场发射扫描电子显微镜(FE-SEM)、比表面积测试(BET)等技术手段表征了产物的组成、结构和形貌,用循环伏安、恒电流充放电等测试方法对复合材料的电化学性能进行了研究.研究发现,石墨烯纳米片均匀分散在钴镍双氢氧化物中,改善了钴镍双氢氧化物的传导性和结构稳定性.电化学测试表明,在1 A/g的电流密度下,复合材料比电容高达2770 F/g,且循环500次后,比电容仍能保持93.4％,呈示该复合材料具有优异的电化学性能.
参考文献
| [1] | Gangwei Sun;Donghui Long;Xiaojun Liu;Wenming Qiao;Liang Zhan;Xiaoyi Liang;Licheng Ling.Asymmetric capacitance response from the chemical characteristics of activated carbons in KOH electrolyte[J].Journal of Electroanalytical Chemistry: An International Journal Devoted to All Aspects of Electrode Kinetics, Interfacial Structure, Properties of Electrolytes, Colloid and Biological Electrochemistry,20112(2):161-167. |
| [2] | Zhiqiang Niu;Weiya Zhou;Jun Chen;Guoxing Feng;Hong Li;Wenjun Ma;Jinzhu Li;Haibo Dong;Yan Ren;Duan Zhao;Sishen Xie.Compact-designed supercapacitors using free-standing single-walled carbon nanotube films[J].Energy & environmental science: EES,20114(4):1440-1446. |
| [3] | Grzegorz Milczarek;Aleksander Ciszewski;Izabela Stepniak.Oxygen-doped activated carbon fiber cloth as electrode material for electrochemical capacitor[J].Journal of Power Sources,201118(18):7882-7885. |
| [4] | Yanwu Zhu;Shanthi Murali;Meryl D. Stoller;K. J. Ganesh;Weiwei Cai;Paulo J. Ferreira;Adam Pirkle;Robert M. Wallace;Katie A. Cychosz;Matthias Thommes;Dong Su;Eric A. Stach;Rodney S. Ruoff.Carbon-Based Supercapacitors Produced by Activation of Graphene[J].Science,2011Jun.24 TN.6037(Jun.24 TN.6037):1537-1541. |
| [5] | Diah Susanti;Dah-Shyang Tsai;Ying-Sheng Huang.Structures and Electrochemical Capacitive Properties of RuO2 Vertical Nanorods Encased in Hydrous RuO2[J].The journal of physical chemistry, C. Nanomaterials and interfaces,200726(26):9530-9537. |
| [6] | Lin Y H;Wei T Y;Chen H C.Manganese Oxide/Carbon Aerogel Composite:An out Standing Supercapacitor Electrode Material[J].Adv Energy Mater,20111(5):901-907. |
| [7] | Gupta V;Gupta S;Miura N.Potentiostatically Deposited Nanostructured Cox Nit-x Layered Doublehydroxides as Electrode Materials for Redox-supercapacitors[J].Journal of Power Sources,2008175(1):680-685. |
| [8] | 徐欢;胡中爱;胡英瑛;鲁爱莲;李丽;杨玉英;李志敏.NiO/还原氧化石墨烯的溶剂热合成以及作为高循环稳定性超级电容器电极材料的性能表征[J].应用化学,2014(3):328-335. |
| [9] | Ting ZhuD|School of Chemical and Biomedical Engineering, Nanyang Technological, University, 70 Nanyang Drive, Singapore, 637457, Singapore;Jun Song ChenD|School of Chemical and Biomedical Engineering, Nanyang Technological, University, 70 Nanyang Drive, Singapore, 637457, Singapore;Xiong Wen Lou D|School of Chemical and Biomedical Engineering, Nanyang Technological, University, 70 Nanyang Drive, Singapore, 637457, Singapore.Shape-controlled synthesis of porous Co3O4 nanostructures for application in supercapacitors[J].Journal of Materials Chemistry: An Interdisciplinary Journal dealing with Synthesis, Structures, Properties and Applications of Materials, Particulary Those Associated with Advanced Technology,201033(33):7015-7020. |
| [10] | Kai Wang;Jiyong Huang;Zhixiang Wei.Conducting Polyaniline Nanowire Arrays for High Performance Supercapacitors[J].The journal of physical chemistry, C. Nanomaterials and interfaces,201017(17):8062-8067. |
| [11] | Hui Guan;Li-Zhen Fan;Hongchang Zhang;Xuanhui Qu.Polyaniline nanofibers obtained by interfacial polymerization for high-rate supercapacitors[J].Electrochimica Acta,20102(2):964-968. |
| [12] | Sanjib Biswas;Lawrence T. Drzal.Multilayered Nanoarchitecture of Graphene Nanosheets and Polypyrrole Nanowires for High Performance Supercapacitor Electrodes[J].Chemistry of Materials: A Publication of the American Chemistry Society,201020(20):5667-5671. |
| [13] | Virendra Singh;Daeha Joung;Lei Zhai;Soumen Das;Saiful I. Khondaker;Sudipta Seal.Graphene based materials: Past, present and future[J].Progress in materials science,20118(8):1178-1271. |
| [14] | Wang, L.;Wang, D.;Dong, X.Y.;Zhang, Z.J.;Pei, X.F.;Chen, X.J.;Chen, B.;Jin, J..Layered assembly of graphene oxide and Co-Al layered double hydroxide nanosheets as electrode materials for supercapacitors[J].Chemical communications,201112(12):3556-3558. |
| [15] | 牛玉莲;金鑫;郑佳;李在均;顾志国;严涛;方银军.石墨烯/钴镍双金属氢氧化物复合材料的制备及电化学性能研究[J].无机化学学报,2012(9):1878-1884. |
| [16] | 严琳;孔惠;李在均.3D石墨烯/镍铝层状双金属氢氧化物的制备及超级电容性能[J].化学学报,2013(5):822-828. |
| [17] | Vinay Gupta;Toshikazu Kawaguchi;Norio Miura.Synthesis And Electrochemical Behavior Of Nanostructured Cauliflower-shape Co-ni/co-ni Oxides Composites[J].Materials Research Bulletin: An International Journal Reporting Research on Crystal Growth and Materials Preparation and Characterization,20091(1):202-206. |
| [18] | 周焯均;朱燕娟;张仲举;叶贤聪;伍尚改;郑汉忠;林晓然;包杰.超声波沉淀法制备Y掺杂纳米多相Ni（OH）2及其性能研究[J].稀有金属材料与工程,2011(7):1287-1291. |
| [19] | 章罗江 .石墨烯/双氢氧化物复合材料的制备及其超电容特性[D].南京航空航天大学,2012. |
| [20] | In situ synthesis of SnO_2/graphene nanocomposite and their application as anode material for lithium ion battery[J].Materials Letters,201019(19):2076-2079. |
| [21] | 蒋健伟;张校刚;苏凌浩;章罗江;张方.层板金属离子不同的钴基双氢氧化物制备及其电化学性能[J].无机化学学报,2010(9):1623-1628. |
| [22] | 刘卯成 .双金属氧化物及其复合材料的赝电容行为研究[D].兰州理工大学,2013. |
| [23] | 于丽秋;陈书礼;常莎;李云虎;高胤义;王贵领;曹殿学.泡沫镍负载的NiCo2O4纳米线阵列电极的超级电容性能[J].物理化学学报,2011(3):615-619. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%