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Current Nanoscience

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ISSN (Print): 1573-4137
ISSN (Online): 1875-6786

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Research Article

Preparation and Improved Capacitive Behavior of NiO/TiO2 Nanocomposites as Electrode Material for Supercapacitor

Author(s): Palani Anandhi*, Veerabadran Jawahar Senthil Kumar and Santhanam Harikrishnan

Volume 16, Issue 1, 2020

Page: [79 - 85] Pages: 7

DOI: 10.2174/1573413715666190219114524

Price: $65

Abstract

Background: Of late, supercapacitors have been drawing great attention over other rechargeable energy storage devices. More efforts are made on the electrode materials of the supercapacitors, in order to improve the specific capacitance and energy density. Based on the past literature, it was stated that pure TiO2 (as electrode material) could promote faradaic reaction to a limited extent due to its low electronic conductivity. Further, this low conductivity could hinder the ion transfer process between electrolyte and electrode during intercalation and de-intercalation, resulting in poor energy density. Hence, it is essential to incorporate high electronic conductivity material into TiO2, for improving the electrochemical performance.

Objective: In the present study, the preparation and electrochemical performance of NiO/TiO2 nanocomposites as an electrode material for supercapacitor were extensively studied.

Method: NiO/TiO2 nanocomposites were synthesized by sol-gel method. The as-prepared nanocomposites were characterized by high-resolution TEM, field emission SEM and XRD. The electrochemical behaviors of the electrode using nanocomposites were assessed by means of cyclic voltammetry (CV) and galvanostatic charge-discharge tests.

Result: The maximum specific capacitance of the nanocomposites based electrode witnessed through CV test was 405 F g-1 at the scan rate of 5 mV s-1 in 1M Na2SO4 electrolyte. The capacitance retention after 5000 charge-discharge cycles was estimated as 92.32%. The energy and power densities at current density of 1 A g-1 were found to be 5.67 Wh kg-1 and 210.52 W kg-1, respectively.

Conclusion: NiO/TiO2 nanocomposites synthesized via sol-gel technique appeared to be flake-like structure. NiO incorporated into TiO2 increased higher electronic conductivity while comparing to pure TiO2. Also, an introduction of NiO into TiO2 improved the specific capacitance, power density, energy density and cycle stability. Due to these facts, combining NiO with TiO2 could be considered to be an efficient way of enhancing the electrochemical performance of electrodes of the supercapacitor.

Keywords: Nanocomposites, electrode material, charge-discharge, specific capacitance, power density, energy density.

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[1]
Dunn, B.; Kamath, H.; Tarascon, J.M. Electrical energy storage for the grid: A battery of choices. Science, 2011, 334, 928-935.
[2]
Vineetha, C.P.; Babu, C.A. Economie analysis of off grid and on grid hybrid power system.2014 International Conference on Circuits, Power and Computing Technologies [ICCPCT-2014]; IEEE: Nagercoil, India, 2014, pp. 473-478.
[3]
Jiang, H.; Lee, P.S.; Li, C. 3D carbon based nanostructures for advanced supercapacitors. Energy Environ. Sci., 2013, 6, 41-53.
[4]
Di Noto, V.; Lavina, S.; Giffin, G.A.; Negro, E.; Scrosati, B. Polymer electrolytes: Present, past and future. Electrochim. Acta, 2011, 57, 4-13.
[5]
Walsh, A.; Padure, N.P.; Seok, S. Physical chemistry of hybrid perovskite solar cells. Phys. Chem. Chem. Phys., 2016, 18, 27024-27025.
[6]
Miller, J.R.; Outlaw, R.A.; Holloway, B.C. Graphene double-layer capacitor with ac line-filtering performance. Science, 2010, 329, 1637-1369.
[7]
Shukla, A.K.; Banerjee, A.; Ravikumar, M.K.; Jalajakshi, A. Electrochemical capacitors: Technical challenges and prognosis for future markets. Electrochim. Acta, 2012, 84, 165-173.
[8]
Brezesinski, T.; Wang, J.; Tolbert, S.H.; Dunn, B. Ordered mesoporous alpha-MoO3 with iso-oriented nanocrystalline walls for thin-film pseudocapacitors. Nat. Mater., 2010, 9, 146-151.
[9]
Mai, L.Q.; Yang, F.; Zhao, Y.L.; Xu, X.; Xu, L.; Luo, Y.Z. Hierarchical MnMoO4/CoMoO4 heterostructured nanowires with enhanced supercapacitor performance. Nat. Commun., 2011, 2, 381-385.
[10]
Zhi, M.; Xiang, C.; Li, J.; Li, M.; Wu, N. Nanostructured carbon-metal oxide composite electrodes for supercapacitors: A review. Nanoscale, 2013, 5, 72-88.
[11]
Chandra, A. Supercapacitors: An alternate technology for energy storage. Proc. Natl. Acad. Sci. Sect. A Phys. Sci., 2012, 82, 79-90.
[12]
Wang, G.; Zhang, L.; Zhang, J. A review of electrode materials for electrochemical supercapacitors. Chem. Soc. Rev., 2012, 41, 797-828.
[13]
Pandolfo, A.; Hollenkamp, A. Carbon properties and their role in supercapacitors. J. Power Sources, 2006, 157, 11-27.
[14]
Snook, G.A.; Kao, P.; Best, A.S. Conducting polymer based supercapacitor devices and electrodes. J. Power Sources, 2011, 196, 1-12.
[15]
Cottineau, T.; Toupin, M.; Delahaye, T.; Brousse, T.; Belanger, D. Nanostructured transition metal oxides for aqueous hybrid electrochemical supercapacitors. Appl. Phys., A., 2006, 82, 599-606.
[16]
Pumera, M. Graphene based nanomaterials and their electrochemistry. Chem. Soc. Rev., 2010, 39, 41-46.
[17]
Zheng, M.; Xiao, X.; Li, L.; Gu, P.; Dai, X.; Tang, H.; Hu, Q.; Xue, H.; Pang, H. Hierarchically nanostructured transition metal oxides for supercapacitors. Sci. China Mater., 2018, 61, 185-209.
[18]
Anandhi, P.; Jawahar Senthil Kumar, V.; Harikrishnan, S. Enhanced capacitive characteristics of TiO2 nanoflakes based electrode material for supercapacitor. J. Electr. Eng., 2017, 17, 252-258.
[19]
Raut, S.S.; Patil, G.P.; Chavan, P.G.; Sankapa, B.R. Vertically aligned TiO2 nanotubes: Highly stable electrochemical supercapacitor. J. Electroanal. Chem., 2016, 780, 197-200.
[20]
Li, S.; Wen, J.; Mo, X.; Long, H.; Wang, H.; Wang, J.; Fang, G. Three-dimensional MnO2 nanowire/ZnO nanorod arrays hybrid nanostructure for high-performance and flexible supercapacitor electrode. J. Power Sources, 2014, 256, 206-211.
[21]
Pang, H.; Ma, Y.; Li, G.; Chen, J.; Zhang, J.; Zheng, H.; Du, W. Facile synthesis of porous ZnO-NiO composite micropolyhedrons and their application for high power supercapacitor electrode materials. Dalton Trans., 2012, 41(43), 13284-13291.
[22]
Xing, Z.; Chu, Q.; Ren, X.; Ge, C.; Qusti, A.H.; Asiri, A.M.; Al-Youbi, A.O.; Sun, X. Ni3S2 coated ZnO array for high-performance supercapacitors. J. Power Sources, 2014, 245, 463-467.
[23]
Tang, C.; Pu, Z.; Liu, Q.; Asiri, A.M.; Sun, X.; Luo, Y.; He, Y. In situ growth of NiSe nanowire film on nickel foam as an electrode for high‐performance supercapacitors. ChemElectroChem, 2015, 2, 1903-1907.
[24]
Pazhamalai, P.; Krishnamoorthy, K.; Sudhakaran, M.S.P.; Kim, S.J. Fabrication of high-performance aqueous Li-ion hybrid capacitor with LiMn2O4 and graphene. ChemElectroChem, 2017, 4, 396-403.
[25]
Tian, Y.; Yang, C.; Que, W.; He, Y.; Liu, X.; Luo, Y.; Yin, X.; Kong, L.B. Ni foam supported quasi-core-shell structure of ultrathin Ti3C2 nanosheets through electrostatic layer-by-layer self-assembly as high rate-performance electrodes of supercapacitors. J. Power Sources, 2017, 369, 78-86.
[26]
Conway, B.E. Electrochemical supercapacitors: Scientific fundamentals and technological applications; Springer Science & Business Media: New York, 2013.

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