Structural, optical, morphological, and supercapacitive studies of electrophoretically deposited nanostructured Mn3O4 thin films

被引:6
作者
Patil, Tanaji S. [1 ]
Nikam, S. M. [1 ]
Kothavale, V. P. [1 ]
Kamble, R. S. [2 ]
Patil, R. B. [3 ]
Takale, M. V. [4 ]
Gangawane, S. A. [5 ]
机构
[1] Shivaji Univ, Dept Phys, Bhogawati Mahavidyalaya Kurukali, Tal Karveer 416001, Maharashtra, India
[2] Shivaji Univ, Dept Chem, Bhogawati Mahavidyalaya Kurukali, Tal Karveer, Maharashtra, India
[3] Shivaji Univ, Dept Phys, Yashwantaro Patil Sci Coll Solankur, Tal Radhanagari 416212, Maharashtra, India
[4] Shivaji Univ, Dept Phys, Kolhapur 416004, Maharashtra, India
[5] Shivaji Univ, Dept Phys, Doodhsakhar Mahavidyalaya Bidri, Kagal, Maharashtra, India
关键词
Trimanganese tetraoxide; Thin films; Electrophoretic deposition technique; Pseudocapacitance; ELECTROCHEMICAL PROPERTIES; CHEMICAL-SYNTHESIS; PERFORMANCE; NANOPARTICLES; TEMPERATURE; FACILE; BEHAVIORS; GROWTH; ARRAYS;
D O I
10.1016/j.tsf.2024.140252
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Herein, the trimanganese tetraoxide (Mn3O4) thin films were deposited by the simple electrophoretic deposition technique using MnSO4 precursor of different molarities (0.05, 0.075, 0.1, and 0.125 M). The effect of different molar concentrations of MnSO4 precursor on structure, morphology, optical properties, and supercapacitive performance has been examined. The deposited thin films were characterized by x-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, transmission electron microscopy, and BrunauerEmmett-Teller studies. The Mn3O4 thin films have nanocrystalline tetragonal Hausmannite structure and porous morphology (grass/nanowire and nanoflower) with preferred orientation in the (220) plane. The supercapacitive performance of the Mn3O4 thin film electrodes was evaluated by cyclic voltammetry and galvanostatic chargedischarge techniques. The maximum specific capacitance value 237 F g-1 was obtained for the thin film deposited at 0.05 M MnSO4 concentration and also exhibited 70 % capacitance retention after 2000 cycles. The pseudocapacitive nature of Mn3O4 thin films was confirmed by cyclic voltammetry and electrochemical impedance spectroscopy studies. This study revealed the nanostructured Mn3O4 thin films have the potential to be used as electrode material for supercapacitor applications.
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页数:12
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