Abstract
Supercapacitors as energy storage devices have attracted great attention due to their high-specific capacitance, fast rechargeability, high-power density, performance, long cycle life and low-maintenance cost. These unique advantages enable their applications in portable electronic devices, gadgets, hybrid electric vehicles, etc. However, developing flexible, high performance, stable and economic storage devices is the need of time. With this motivation, binder-free \(\text {ZnCo}_{2}\text {O}_{4}\) thin films are synthesized on flexible stainless steel mesh by a hydrothermal method. The structural, morphological and physicochemical properties of \(\text {ZnCo}_{2}\text {O}_{4}\) are investigated using X-ray diffraction, Fourier transform infrared spectroscopy, field emission scanning electron microscopy (FESEM) and energy dispersive spectroscopy. FESEM images reveal thin films with flower-shaped microspheres composed of bunched nanowires providing a large surface area (\(72\, \text {m}^{2}\,\text {g}^{-1})\) which is confirmed by Brunauer–Emmett–Teller analysis. The electrochemical performance of the \(\text {ZnCo}_{2}\text {O}_{4}\) thin film electrode exhibited a specific capacitance of 127.8 F \(\text {g}^{-1}\) at a current density of 1 mA \(\text {cm}^{-2}\). It also shows good rate capability and excellent electrochemical cycling stability (80.66% specific capacitance retention after 3000 cycles).
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References
Gai Y, Shang Y, Gong L, Su L, Hao L, Dong F et al 2017 RSC Adv. 7 1038
Kashale A A, Gattu K P, Ghule K, Ingole V H, Dhanayat S, Sharma R et al 2016 Compos. Part B: Eng. 99 297
Kashale A A, Ghule K A, Gattu K P, Ingole V H, Dhanayat S S, Sharma R et al 2017 J. Mater. Sci.: Mater. Electron. 28 1472
Dong J Y, Zhang N, Lin S Y, Chen T T, Zhang M Y, Wu L L et al 2016 Nano 11 1650089
Vadiyar M M, Bhise S C, Patil S K, Kolekar S S, Chang J-Y and Ghule A V 2016 ChemistrySelect 1 959
Vadiyar M M, Kolekar S S, Chang J-Y, Kashale A A and Ghule A V 2016 Electrochim. Acta 222 1604
Karthikeyan K, Kalpana D and Renganathan N G 2009 Ionics 15 107
Yu G, Hu L, Liu N, Wang H, Vosgueritchian M, Yang Y et al 2011 Nano Lett. 11 4438
Yeom D-H, Choi J, Byun W J and Lee J K 2016 Korean J. Chem. Eng. 33 3029
Nithya V D and Sabari Arul N 2016 J. Mater. Chem. A 4 10767
Wang Y, Lei Y, Li J, Gu L, Yuan H and Xiao D 2014 ACS Appl. Mater. Interfaces 6 6739
Padmanathan N and Selladurai S 2014 RSC Adv. 4 6527
Liu L, Lang J, Zhang P, Hu B and Yan X 2016 ACS Appl. Mater. Interfaces 8 9335
Xia H, Shirley Meng Y, Yuan G, Cui C and Lu L 2012 Electrochem. Solid-State Lett. 15 A60
Wu Z, Zhu Y and Ji X 2014 J. Mater. Chem. A 2 14759
Sankar K V, Selvan R K and Meyrick D 2015 RSC Adv. 5 99959
Kumar N, Kumar A, Chandrasekaran S and Yuen Tseng T 2018 J. Clean Energy Technol. 6 51
Zhu M, Meng D, Wang C and Diao G 2013 ACS Appl. Mater. Interfaces 5 6030
Wu H, Lou Z, Yang H and Shen G Z 2015 Nanoscale 7 1921
Kashale A A, Vadiyar Madagonda M, Kolekar S S, Sathe B R, Chang J-Y, Dhakal H N et al 2017 RSC Adv. 7 36886
Sekhar S C, Nagaraju G and Yu J S 2017 Nano Energy 36 58
Dubey R and Guruviah V 2019 Ionics 25 1419
Rajesh J A, Min B-K, Kim J-H, Kang S-H, Kim H and Ahn K-S 2017 J. Electroanal. Chem. 785 48
Sharma Y, Sharma N, Subba Rao G V and Chowdari B V R 2007 Adv. Funct. Mater. 17 2855
Rajesh J A, Min B K, Kim J H, Kim H and Ahn K S 2016 J. Electrochem. Soc. 163 A2418
Kong D, Ren W, Cheng C, Wang Y, Huang Z and Yang H Y 2015 ACS Appl. Mater. Interfaces 7 21334
Zhou G, Zhu J, Chen Y, Mei L, Duan X, Zhang G et al 2014 Electrochim. Acta 123 450
Justin P, Meher S K and Rao G R 2010 J. Phys. Chem. C 114 5203
Meher S K and Rao G R 2011 J. Phys. Chem. C 115 15646
Wang S, Pu J, Tong Y, Cheng Y, Gao Y and Wang Z 2014 J. Mater. Chem. A 2 5434
Fu W, Wang Y, Han W, Zhang Z, Zha H and Xie E 2015 J. Mater. Chem. A 4 173
Cai D, Liu B, Wang D, Wang L, Liu Y, Li H et al 2014 J. Mater. Chem. A 2 4954
Liu X, Shi S, Xiong Q, Li L, Zhang Y, Tang H et al 2013 ACS Appl. Mater. Interfaces 5 8790
Acknowledgements
GPK is thankful to UGC, New Delhi, for a Research Fellowship (File No. F1-17.1/2016-17/RGNF-2017-18-SC-MAH-35301/ (SA-III/website)). We are thankful to the Department of Chemistry, Shivaji University, Kolhapur for providing the research facilities. We are thankful to Shivaji University Group for Advanced Research ‘SUGAR’ for helpful discussion.
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Kamble, G.P., Kashale, A.A., Dhanayat, S.S. et al. Binder-free synthesis of high-quality nanocrystalline \(\text {ZnCo}_{2}\text {O}_{4}\) thin film electrodes for supercapacitor application. Bull Mater Sci 42, 272 (2019). https://doi.org/10.1007/s12034-019-1950-x
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DOI: https://doi.org/10.1007/s12034-019-1950-x