Synthesis and electrochemical capacitance of sheet-like cobalt hydroxide
作者： Zhongai Hu , Liping Mo , Xiaojuan Feng , Jun Shi , Yaoxian Wang
DOI: 10.1016/J.MATCHEMPHYS.2008.07.073
关键词: Inorganic chemistry 、 Cyclic voltammetry 、 Diffraction 、 Cobalt hydroxide 、 Analytical chemistry 、 Infrared 、 Capacitance 、 Citric acid 、 Spectroscopy 、 Thermal treatment 、 Chemistry
摘要: Abstract Cobalt hydroxide was synthesized via a new approach, in which the gel prepared by reaction of Co(NO 3 ) 2 solution with citric acid, and then precursors were obtained after thermal treatment, finally reacted KOH to produce samples. The components measured Fourier transforms infrared (FT-IR) spectroscopy. morphology structure samples characterized field emission scanning electron microscopy (FESEM) X-ray diffraction (XRD). results indicate that as-prepared materials are β-Co(OH) sheet-like morphology. effect treatment temperature for precursor on sheet size discussed detail. Cyclic voltammetry constant current charge/discharge measurements show cobalt exhibits excellent capacitance performance. specific is up 416.7 F g −1 at test 5 mA.
elsevier.com
sci-hub.se 参考文章(21)
Eiji Hosono, Shinobu Fujihara, Iraru Honma, Masaki Ichihara, Haoshen Zhou, Synthesis of the CoOOH fine nanoflake film with the high rate capacitance property Journal of Power Sources. ,vol. 158, pp. 779- 783 ,(2006) , 10.1016/J.JPOWSOUR.2005.09.052
Guo-Qing Zhang, Yong-Qing Zhao, Feng Tao, Hu-Lin Li, Electrochemical characteristics and impedance spectroscopy studies of nano-cobalt silicate hydroxide for supercapacitor Journal of Power Sources. ,vol. 161, pp. 723- 729 ,(2006) , 10.1016/J.JPOWSOUR.2006.03.041
J. Ismail, M.F. Ahmed, P. Vishnu Kamath, Cyclic voltammetric studies of pure and doped films of cobalt hydroxide in 1 M KOH Journal of Power Sources. ,vol. 36, pp. 507- 516 ,(1991) , 10.1016/0378-7753(91)80076-A
Zhaoping Liu, Renzhi Ma, Minoru Osada, Kazunori Takada, Takayoshi Sasaki, Selective and Controlled Synthesis of α- and β-Cobalt Hydroxides in Highly Developed Hexagonal Platelets Journal of the American Chemical Society. ,vol. 127, pp. 13869- 13874 ,(2005) , 10.1021/JA0523338
Changzhou Yuan, Xiaogang Zhang, Bo Gao, Juan Li, Synthesis and electrochemical capacitance of mesoporous Co(OH)2 Materials Chemistry and Physics. ,vol. 101, pp. 148- 152 ,(2007) , 10.1016/J.MATCHEMPHYS.2006.03.013
Yan-Yu Liang, Lin Cao, Ling-Bin Kong, Hu-Lin Li, None, Synthesis of Co(OH)2/USY composite and its application for electrochemical supercapacitors Journal of Power Sources. ,vol. 136, pp. 197- 200 ,(2004) , 10.1016/J.JPOWSOUR.2004.05.009
S. T. Mayer, R. W. Pekala, J. L. Kaschmitter, The Aerocapacitor: An Electrochemical Double‐Layer Energy‐Storage Device Journal of The Electrochemical Society. ,vol. 140, pp. 446- 451 ,(1993) , 10.1149/1.2221066
P. Elumalai, H.N. Vasan, N. Munichandraiah, Electrochemical studies of cobalt hydroxide — an additive for nickel electrodes Journal of Power Sources. ,vol. 93, pp. 201- 208 ,(2001) , 10.1016/S0378-7753(00)00572-3
S. Vivekanandhan, M. Venkateswarlu, N. Satyanarayana, Novel urea assisted polymeric citrate route for the synthesis of nanocrystalline spinel LiMn2O4 powders Journal of Alloys and Compounds. ,vol. 441, pp. 284- 290 ,(2007) , 10.1016/J.JALLCOM.2006.09.098
Feng Tao, Yingzhong Shen, Yanyu Liang, Hulin Li, None, Synthesis and characterization of Co(OH)(2)/TiO2 nanotube composites as supercapacitor materials Journal of Solid State Electrochemistry. ,vol. 11, pp. 853- 858 ,(2007) , 10.1007/S10008-006-0232-X