Vertically-aligned Co(OH)2 Nanosheet Films for Flexible All-solid-state Electrochemical Supercapacitor

被引:2
作者
Tian, Yazhou [1 ]
Gong, Jiangfeng [1 ]
Zhu, Weihua [1 ]
机构
[1] Hohai Univ, Coll Sci, Nanjing 210098, Jiangsu, Peoples R China
来源
2017 3RD INTERNATIONAL CONFERENCE ON ENERGY, ENVIRONMENT AND MATERIALS SCIENCE (EEMS 2017) | 2017年 / 94卷
关键词
CHARGE STORAGE; PERFORMANCE; GRAPHENE;
D O I
10.1088/1755-1315/94/1/012131
中图分类号
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号
0807 ; 0820 ;
摘要
Vertically-aligned Co(OH)(2) nanosheets were cathodically electrodeposited on a piece of gold coated polyethylene terephthalate (Au-PET) as an electrode material for supercapacitor. The Co(OH)(2) electrode showed a high capacitance of 2695 F g(-1) at 8 A g(-1) in 1 M KOH aqueous electrolyte. Besides, the films were employed to assemble symmetric all-solid-state supercapacitors with PVA/LiCl gel served as solid electrolyte. The device exhibits an areal capacitance of 50.5 mu g cm(-2) at the current density of 2 mu A cm(-2) accompanied by excellent cycle stability.
引用
收藏
页数:5
相关论文
共 13 条
[1]   Hydrothermal-synthesized Co(OH)2 nanocone arrays for supercapacitor application [J].
Cao, F. ;
Pan, G. X. ;
Tang, P. S. ;
Chen, H. F. .
JOURNAL OF POWER SOURCES, 2012, 216 :395-399
[2]   Hybrid nanomaterial of α-Co(OH)2 nanosheets and few-layer graphene as an enhanced electrode material for supercapacitors [J].
Cheng, J. P. ;
Liu, L. ;
Ma, K. Y. ;
Wang, X. ;
Li, Q. Q. ;
Wu, J. S. ;
Liu, F. .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2017, 486 :344-350
[3]  
Feng J-X, 2014, ADV FUNCT MATER, V10, P67
[4]   Flexible all-solid-state hierarchical NiCo2O4/porous graphene paper asymmetric supercapacitors with an exceptional combination of electrochemical properties [J].
Gao, Zan ;
Yang, Wanlu ;
Wang, Jun ;
Song, Ningning ;
Li, Xiaodong .
NANO ENERGY, 2015, 13 :306-317
[5]   Solid State Flexible Asymmetric Supercapacitor Based on Carbon Fiber Supported Hierarchical Co(OH)xCO3 and Ni(OH)2 [J].
Ghosh, Debasis ;
Mandal, Manas ;
Das, Chapal Kumar .
LANGMUIR, 2015, 31 (28) :7835-7843
[6]   High-performance Transparent and Flexible Asymmetric Supercapacitor based on Graphene-wrapped Amorphous FeOOH Nanowire and Co(OH)2 Nanosheet Transparent Films Produced at air-water interface [J].
Li, Na ;
Zhi, ChunYi ;
Zhang, Haiyan .
ELECTROCHIMICA ACTA, 2016, 220 :618-627
[7]   Fabrication of Porous β-Co(OH)2 Architecture at Room Temperature: A High Performance Supercapacitor [J].
Mondal, Chanchal ;
Ganguly, Mainak ;
Manna, P. K. ;
Yusuf, S. M. ;
Pal, Tarasankar .
LANGMUIR, 2013, 29 (29) :9179-9187
[8]   Charge storage, electrocatalytic and sensing activities of nest-like nanostructured Co3O4 [J].
Rajeshkhanna, G. ;
Umeshbabu, Ediga ;
Rao, G. Ranga .
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2017, 487 :20-30
[9]   Layered Ni(OH)2-Co(OH)2 films prepared by electrodeposition as charge storage electrodes for hybrid supercapacitors [J].
Tuyen Nguyen ;
Boudard, Michel ;
Joao Carmezim, M. ;
Fatima Montemor, M. .
SCIENTIFIC REPORTS, 2017, 7
[10]   Pseudocapacitive performance of Co(OH)2 enhanced by Ni(OH)2 formation on porous Ni/Cu electrode [J].
Wang, Chao-hong ;
Liu, Jian-lin ;
Huang, Hsuan-yu .
ELECTROCHIMICA ACTA, 2015, 182 :47-60