Alternating voltage induced porous Co3O4 sheets: an exploration of its supercapacity properties

被引:18
作者
Jing, Mingjun [1 ]
Yang, Yingchang [1 ]
Zhu, Yirong [1 ]
Hou, Hongshuai [1 ]
Wu, Zhibin [1 ]
Chen, Qiyuan [1 ]
Ji, Xiaobo [1 ]
机构
[1] Cent S Univ, Coll Chem & Chem Engn, Changsha, Hunan, Peoples R China
基金
中国国家自然科学基金;
关键词
HIGH-PERFORMANCE SUPERCAPACITORS; DEPENDENT SELF-ORGANIZATION; ELECTROCHEMICAL PERFORMANCE; CONTROLLABLE SYNTHESIS; NANOSTRUCTURES; MORPHOLOGY; FACILE; CAPACITORS; CRYSTAL; ELECTROLYTES;
D O I
10.1039/c4ra09869b
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
An alternating voltage induced method has been developed for the fabrication of porous Co3O4 sheets. The electrochemical investigation of Co3O4 sheets in LiOH, NaOH and KOH electrolytes reveals that the size of the hydrated ionic radius can have impact on its ionic conductivity, resulting in the best rate behaviour in the KOH electrolyte. Based on the results above, Co3O4 sheets were further utilized in a 2 M KOH aqueous electrolyte and exhibit a maximum specific capacitance of 288 F g(-1) at a current density of 1 A g(-1)
引用
收藏
页码:177 / 183
页数:7
相关论文
共 33 条
[1]   A simple and generic approach for synthesizing colloidal metal and metal oxide nanocrystals [J].
Cloud, Jacqueline E. ;
Yoder, Tara S. ;
Harvey, Nathan K. ;
Snow, Kyle ;
Yang, Yongan .
NANOSCALE, 2013, 5 (16) :7368-7378
[2]   Morphology Controlled Synthesis of Nanoporous Co3O4 Nanostructures and Their Charge Storage Characteristics in Supercapacitors [J].
Deori, Kalyanjyoti ;
Ujjain, Sanjeev Kumar ;
Sharma, Raj Kishore ;
Deka, Sasanka .
ACS APPLIED MATERIALS & INTERFACES, 2013, 5 (21) :10665-10672
[3]   Facile synthesis of hollow Co3O4 boxes for high capacity supercapacitor [J].
Du, Wei ;
Liu, Rongmei ;
Jiang, Yuanwen ;
Lu, Qingyi ;
Fan, Yongzhang ;
Gao, Feng .
JOURNAL OF POWER SOURCES, 2013, 227 :101-105
[4]   Hierarchically porous Co3O4 film prepared by hydrothermal synthesis method based on colloidal crystal template for supercapacitor application [J].
Duan, B. R. ;
Cao, Q. .
ELECTROCHIMICA ACTA, 2012, 64 :154-161
[5]   A PROFILE-FITTING PROCEDURE FOR ANALYSIS OF BROADENED X-RAY-DIFFRACTION PEAKS .1. METHODOLOGY [J].
ENZO, S ;
FAGHERAZZI, G ;
BENEDETTI, A ;
POLIZZI, S .
JOURNAL OF APPLIED CRYSTALLOGRAPHY, 1988, 21 :536-542
[6]   Correlation between Microstructure and Electrochemical Behavior of the Mesoporous Co3O4 Sheet and Its Ionothermal Synthesized Hydrotalcite-like α-Co(OH)2 Precursor [J].
Ge, X. ;
Gu, C. D. ;
Wang, X. L. ;
Tu, J. P. .
JOURNAL OF PHYSICAL CHEMISTRY C, 2014, 118 (02) :911-923
[7]   Controllable preparation of Co3O4 nanosheets and their electrochemical performance for Li-ion batteries [J].
Hao, Qin ;
Li, Menghua ;
Jia, Suzhen ;
Zhao, Xiaoyun ;
Xu, Caixia .
RSC ADVANCES, 2013, 3 (21) :7850-7854
[8]   Facile preparation of Pt hydrosols by dispersing bulk Pt with potential perturbations [J].
Huang, Wei ;
Chen, Shu ;
Zheng, Jufang ;
Li, Zelin .
ELECTROCHEMISTRY COMMUNICATIONS, 2009, 11 (02) :469-472
[9]   Supercapacitive activities of potentiodynamically deposited nanoflakes of cobalt oxide (Co3O4) thin film electrode [J].
Jagadale, A. D. ;
Kumbhar, V. S. ;
Lokhande, C. D. .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2013, 406 :225-230
[10]   Solvothermal synthesis and electrochemical performance in super-capacitors of Co3O4/C flower-like nanostructures [J].
Jiang, Jinhui ;
Shi, Weidong ;
Song, Shuyan ;
Hao, Qingli ;
Fan, Weiqiang ;
Xia, Xifeng ;
Zhang, Xian ;
Wang, Qian ;
Liu, Chunbo ;
Yan, Dan .
JOURNAL OF POWER SOURCES, 2014, 248 :1281-1289