Facilely synthesized porous ZnCo 2 O 4 rodlike nanostructure for high-rate supercapacitors
作者： Tianfu Huang , Chenhao Zhao , Ruijuan Zheng , Youe Zhang , Zhibiao Hu
DOI: 10.1007/S11581-015-1491-2
关键词: Supercapacitor 、 Nanotechnology 、 Horizontal scan rate 、 Porosity 、 Nanostructure 、 Capacitance 、 Materials science 、 Calcination 、 Cyclic voltammetry 、 Chemical engineering 、 Current density
摘要: In the paper, a simple initial oxalate co-precipitation and subsequent high temperature calcination route has been employed to prepare porous ZnCo2O4 rodlike nanostructure. The composed of obvious nanostructure size about 26.78 nm. When used as supercapacitor, electrochemical performances were clearly studied by liner sweep cyclic voltammetry, galvanostatic charge-discharge EIS experiments. detail, it can deliver specific capacitance 604.52 F g−1 at 1 A g−1 have capacity retention 95.62 % over 3000 cycles. Excellent rate capability, 81.47 % for 10-time scan rise 62.17 % current density increase, is achieved. These results are much better than ZnO Co3O4. Maybe, enhanced be attributed structure synergy Zn Co. excellent cycling ability show promise its application in supercapacitors.
springer.com
sci-hub.se 参考文章(25)
Changzhou Yuan, Jiaoyang Li, Linrui Hou, Xiaogang Zhang, Laifa Shen, Xiong Wen David Lou, Ultrathin Mesoporous NiCo2O4Nanosheets Supported on Ni Foam as Advanced Electrodes for Supercapacitors Advanced Functional Materials. ,vol. 22, pp. 4592- 4597 ,(2012) , 10.1002/ADFM.201200994
Wenbin Fu, Xiulei Li, Changhui Zhao, Ying Liu, Peng Zhang, Jinyuan Zhou, Xiaojun Pan, Erqing Xie, Facile hydrothermal synthesis of flowerlike ZnCo2O4 microspheres as binder-free electrodes for supercapacitors Materials Letters. ,vol. 149, pp. 1- 4 ,(2015) , 10.1016/J.MATLET.2015.02.092
Ling-Bin Kong, Chao Lu, Mao-Cheng Liu, Yong-Chun Luo, Long Kang, Xiaohong Li, Frank C. Walsh, The specific capacitance of sol–gel synthesised spinel MnCo2O4 in an alkaline electrolyte Electrochimica Acta. ,vol. 115, pp. 22- 27 ,(2014) , 10.1016/J.ELECTACTA.2013.10.089
Huanlei Wang, Qiuming Gao, Lei Jiang, Facile approach to prepare nickel cobaltite nanowire materials for supercapacitors Small. ,vol. 7, pp. 2454- 2459 ,(2011) , 10.1002/SMLL.201100534
Chun Wu, Junjie Cai, Qiaobao Zhang, Xiang Zhou, Ying Zhu, Lingjun Li, Peikang Shen, Kaili Zhang, Direct growth of urchin-like ZnCo2O4 microspheres assembled from nanowires on nickel foam as high-performance electrodes for supercapacitors Electrochimica Acta. ,vol. 169, pp. 202- 209 ,(2015) , 10.1016/J.ELECTACTA.2015.04.079
Peng-Cheng Gao, An-Hui Lu, Wen-Cui Li, Dual functions of activated carbon in a positive electrode for MnO2-based hybrid supercapacitor Journal of Power Sources. ,vol. 196, pp. 4095- 4101 ,(2011) , 10.1016/J.JPOWSOUR.2010.12.056
Cheol-Soo Yang, Yun Su Jang, Hae Kyung Jeong, Bamboo-based activated carbon for supercapacitor applications Current Applied Physics. ,vol. 14, pp. 1616- 1620 ,(2014) , 10.1016/J.CAP.2014.09.021
S. Vijayakumar, A. Kiruthika Ponnalagi, S. Nagamuthu, G. Muralidharan, Microwave assisted synthesis of Co3O4 nanoparticles for high-performance supercapacitors Electrochimica Acta. ,vol. 106, pp. 500- 505 ,(2013) , 10.1016/J.ELECTACTA.2013.05.121
Yang Li, Huaqing Xie, Jifeng Wang, Lifei Chen, Preparation and electrochemical performances of α-MnO2 nanorod for supercapacitor Materials Letters. ,vol. 65, pp. 403- 405 ,(2011) , 10.1016/J.MATLET.2010.10.048
V SUBRAMANIAN, Mesoporous anhydrous RuO2 as a supercapacitor electrode material Solid State Ionics. ,vol. 175, pp. 511- 515 ,(2004) , 10.1016/J.SSI.2004.01.070