Facile growth of homogeneous Ni(OH)2 coating on carbon nanosheets for high-performance asymmetric supercapacitor applications
),
Weiping Ding1(
)
Download citation
576
Views
26
Downloads
195
Crossref
N/A
WoS
186
Scopus
3
CSCD
The growth of a Ni(OH)2 coating on conductive carbon substrates is an efficient way to address issues related to their poor conductivity in electrochemical capacitor applications. However, the direct growth of nickel hydroxide coatings on a carbon substrate is challenging, because the surfaces of these systems are not compatible and a preoxidation treatment of the conductive carbon substrate is usually required. Herein, we present a facile preoxidation-free approach to fabricate a uniform Ni(OH)2 coating on carbon nanosheets (CNs) by an ion-exchange reaction to achieve the in situ transformation of a MgO/C composite to a Ni(OH)2/C one. The obtained Ni(OH)2/CNs hybrids possess nanosheet morphology, a large surface area (278 m2/g), and homogeneous elemental distributions. When employed as supercapacitors in a three-electrode configuration, the Ni(OH)2/CNs hybrid achieves a large capacitance of 2, 218 F/g at a current density of 1.0 A/g. Moreover, asymmetric supercapacitors fabricated with the Ni(OH)2/CNs hybrid exhibit superior supercapacitive performances, with a large capacity of 198 F/g, and high energy density of 56.7 Wh/kg at a power density of 4.0 kW/kg. They show excellent cycling stability with 93% capacity retention after 10, 000 cycles, making the Ni(OH)2/CNs hybrid a promising candidate for practical applications in supercapacitor devices.
menu
Facile growth of homogeneous Ni(OH)2 coating on carbon nanosheets for high-performance asymmetric supercapacitor applications
), Weiping Ding1(
)
Abstract
The growth of a Ni(OH)2 coating on conductive carbon substrates is an efficient way to address issues related to their poor conductivity in electrochemical capacitor applications. However, the direct growth of nickel hydroxide coatings on a carbon substrate is challenging, because the surfaces of these systems are not compatible and a preoxidation treatment of the conductive carbon substrate is usually required. Herein, we present a facile preoxidation-free approach to fabricate a uniform Ni(OH)2 coating on carbon nanosheets (CNs) by an ion-exchange reaction to achieve the in situ transformation of a MgO/C composite to a Ni(OH)2/C one. The obtained Ni(OH)2/CNs hybrids possess nanosheet morphology, a large surface area (278 m2/g), and homogeneous elemental distributions. When employed as supercapacitors in a three-electrode configuration, the Ni(OH)2/CNs hybrid achieves a large capacitance of 2, 218 F/g at a current density of 1.0 A/g. Moreover, asymmetric supercapacitors fabricated with the Ni(OH)2/CNs hybrid exhibit superior supercapacitive performances, with a large capacity of 198 F/g, and high energy density of 56.7 Wh/kg at a power density of 4.0 kW/kg. They show excellent cycling stability with 93% capacity retention after 10, 000 cycles, making the Ni(OH)2/CNs hybrid a promising candidate for practical applications in supercapacitor devices.
References(25)
Wu, H.; Jiang, K.; Gu, S. S.; Yang, H.; Lou, Z.; Chen, D.; Shen, G. Z. Two-dimensional Ni(OH)2 nanoplates for flexible on-chip microsupercapacitors. Nano Res. 2015, 8, 3544–3552.
Hu, Y. T.; Guan, C.; Ke, Q. Q.; Yow, Z. F.; Cheng, C. W.; Wang, J. Hybrid Fe2O3 nanoparticle clusters/rGO paper as an effective negative electrode for flexible supercapacitors. Chem. Mater. 2016, 28, 7296–7303.
Chi, Y. -W.; Hu, C. -C.; Shen, H. -H.; Huang, K. -P. New approach for high-voltage electrical double-layer capacitors using vertical graphene nanowalls with and without nitrogen doping. Nano Lett. 2016, 16, 5719–5727.
Zhao, J.; Lai, H. W.; Lyu, Z. Y.; Jiang, Y. F.; Xie, K.; Wang, X. Z.; Wu, Q.; Yang, L. J.; Jin, Z.; Ma, Y. W. et al. Hydrophilic hierarchical nitrogen-doped carbon nanocages for ultrahigh supercapacitive performance. Adv. Mater. 2015, 27, 3541–3545.
Xu, Y. X.; Huang, X. Q.; Lin, Z. Y.; Zhong, X.; Huang, Y.; Duan, X. F. One-step strategy to graphene/Ni(OH)2 composite hydrogels as advanced three-dimensional supercapacitor electrode materials. Nano Res. 2013, 6, 65–76.
Liang, D. W.; Wu, S. L.; Liu, J.; Tian, Z. F.; Liang, C. H. Co-doped Ni hydroxide and oxide nanosheet networks: Laser-assisted synthesis, effective doping, and ultrahigh pseudocapacitor performance. J. Mater. Chem. A 2016, 4, 10609–10617.
Liu, X. Y.; Gao, Y. Q.; Yang, G. W. A flexible, transparent and super-long-life supercapacitor based on ultrafine Co3O4 nanocrystal electrodes. Nanoscale 2016, 8, 4227–4235.
Zhu, J. W.; Chen, S.; Zhou, H.; Wang, X. Fabrication of a low defect density graphene-nickel hydroxide nanosheet hybrid with enhanced electrochemical performance. Nano Res. 2012, 5, 11–19.
Le Comte, A.; Brousse, T.; Belanger, D. New generation of hybrid carbon/Ni(OH)2 electrochemical capacitor using functionalized carbon electrode. J. Power Sources 2016, 326, 702–710.
Zhang, C. Q.; Chen, Q. D.; Zhan, H. B. Supercapacitors based on reduced graphene oxide nanofibers supported Ni(OH)2 nanoplates with enhanced electrochemical performance. ACS Appl. Mater. Interfaces 2016, 8, 22977–22987.
Shi, D.; Zhang, L.; Yin, X.; Huang, T. J.; Gong, H. A one step processed advanced interwoven architecture of Ni(OH)2 and Cu nanosheets with ultrahigh supercapacitor performance. J. Mater. Chem. A 2016, 4, 12144–12151.
Wang, R. H.; Jayakumar, A.; Xu, C. H.; Lee, J. -M. Ni(OH)2 nanoflowers/graphene hydrogels: A new assembly for supercapacitors. ACS Sustainable Chem. Eng. 2016, 4, 3736–3742.
Min, S. D.; Zhao, C. J.; Zhang, Z. M.; Chen, G. R.; Qian, X. Z.; Guo, Z. P. Synthesis of Ni(OH)2/RGO pseudocomposite on nickel foam for supercapacitors with superior performance. J. Mater. Chem. A 2015, 3, 3641–3650.
Chen, X.; Long, C. L.; Lin, C. P.; Wei, T.; Yan, J.; Jiang, L. L.; Fan, Z. J. Al and Co co-doped α-Ni(OH)2/graphene hybrid materials with high electrochemical performances for supercapacitors. Electrochim. Acta 2014, 137, 352–358.
Lee, G.; Varanasi, C. V.; Liu, J. Effects of morphology and chemical doping on electrochemical properties of metal hydroxides in pseudocapacitors. Nanoscale 2015, 7, 3181–3188.
Xie, M. J.; Duan, S. Y.; Shen, Y.; Fang, K.; Wang, Y. Z.; Lin, M.; Guo, X. F. In-situ-grown Mg(OH)2-derived hybrid α-Ni(OH)2 for highly stable supercapacitor. ACS Energy Lett. 2016, 1, 814–819.
Ma, X. W.; Li, Y.; Wen, Z. W.; Gao, F. X.; Liang, C. Y.; Che, R. C. Ultrathin β-Ni(OH)2 nanoplates vertically grown on nickel-coated carbon nanotubes as high-performance pseudocapacitor electrode materials. ACS Appl. Mater. Interfaces 2015, 7, 974–979.
Liu, Y. H.; Wang, R. T.; Yan, X. B. Synergistic effect between ultra-small nickel hydroxide nanoparticles and reduced graphene oxide sheets for the application in high-performance asymmetric supercapacitor. Sci. Rep. 2015, 5, 11095.
Wang, H. L.; Casalongue, H. S.; Liang, Y. Y.; Dai, H. J. Ni(OH)2 nanoplates grown on graphene as advanced electrochemical pseudocapacitor materials. J. Am. Chem. Soc. 2010, 132, 7472–7477.
Patil, U.; Lee, S. C.; Kulkarni, S.; Sohn, J. S.; Nam, M. S.; Han, S.; Jun, S. C. Nanostructured pseudocapacitive materials decorated 3D graphene foam electrodes for next generation supercapacitors. Nanoscale 2015, 7, 6999–7021.
Tang, C.; Wang, H. -S.; Wang, H. -F.; Zhang, Q.; Tian, G. -L.; Nie, J. -Q.; Wei, F. Spatially confined hybridization of nanometer-sized NiFe hydroxides into nitrogen-doped graphene frameworks leading to superior oxygen evolution reactivity. Adv. Mater. 2015, 27, 4516–4522.
Li, M. M.; Tang, M. H.; Deng, J.; Wang, Y. Nitrogen-doped flower-like porous carbon materials directed by in situ hydrolysed MgO: Promising support for Ru nanoparticles in catalytic hydrogenations. Nano Res. 2016, 9, 3129–3140.
Li, W.; Xin, L. P.; Xu, X.; Liu, Q. D.; Zhang, M.; Ding, S. J.; Zhao, M. S.; Lou, X. J. Facile synthesis of three-dimensional structured carbon fiber-NiCo2O4-Ni(OH)2 high-performance electrode for pseudocapacitors. Sci. Rep. 2015, 5, 9277.
Xie, M. J.; Yang, J.; Liang, J. Y.; Guo, X. F.; Ding, W. P. In situ hydrothermal deposition as an efficient catalyst supporting method towards low-temperature graphitization of amorphous carbon. Carbon 2014, 77, 215–225.
Yan, J.; Fan, Z. J.; Sun, W.; Ning, G. Q.; Wei, T.; Zhang, Q.; Zhang, R. F.; Zhi, L. J.; Wei, F. Advanced asymmetric supercapacitors based on Ni(OH)2/graphene and porous graphene electrodes with high energy density. Adv. Funct. Mater. 2012, 22, 2632–2641.
Publication history
Copyright
Acknowledgements
This work was financially supported by the National Natural Science Foundation of China (Nos. 20773063, 20773062, 21173119, and 21273109), the Fundamental Research Funds for the Central Universities. The authors also thank the support from the Hubei Key Laboratory for Processing and Application of Catalytic Materials (No. CH201401).
FEEDBACK 
TOP