Hydrothermal Synthesis vs Electrodeposition for High Specific Capacitance Nanostructured NiO Films

NiO nanostructured films were synthesized by hydrothermal and electrodeposition methods at different deposition temperatures. Films fabricated by different methods had similar crystalline structures, but different morphologies. The electrochemical properties of the NiO films were studied by cyclic voltammetry (CV) and electrochemical impedance spectroscopy. For both fabrication methods, annealing was necessary to convert the films to NiO. After annealing at 300°C, all films behaved as pseudocapacitors. The electrodeposited film fabricated at a deposition temperature of 70°C on Ti foil exhibited a high value of pseudocapacitance (148 F/g at 100 mV/s CV scan rate), which suggests that electrodeposited films are promising for supercapacitor applications.

[1]  Milin Zhang,et al.  Preparation and electrochemical properties of multiwalled carbon nanotubes-nickel oxide porous composite for supercapacitors , 2007 .

[2]  W. Fang,et al.  Arrayed CNx NT-RuO2 nanocomposites directly grown on Ti-buffered Si substrate for supercapacitor applications , 2007 .

[3]  Shuren Zhang,et al.  Comparative studies of nickel oxide films on different substrates for electrochemical supercapacitors , 2006 .

[4]  N. Miura,et al.  Electrochemically deposited nanowhiskers of nickel oxide as a high-power pseudocapacitive electrode , 2004 .

[5]  Qingchun Yu,et al.  Study of NiO cathode modified by rare earth oxide additive for MCFC by electrochemical impedance spectroscopy , 2004 .

[6]  G. Lu,et al.  Synthesis and electrochemical properties of mesoporous nickel oxide , 2004 .

[7]  Oh-Shim Joo,et al.  Performance of supercapacitor with electrodeposited ruthenium oxide film electrodes—effect of film thickness , 2004 .

[8]  Yingke Zhou,et al.  Nanocrystalline NiO as an electrode material for electrochemical capacitor , 2004 .

[9]  X. G. Zhang,et al.  NiO-based composite electrode with RuO2 for electrochemical capacitors , 2004 .

[10]  Ying Wang,et al.  Nanocrystalline NiO thin film anode with MgO coating for Li-ion batteries , 2003 .

[11]  Lide Zhang,et al.  Ordered nickel oxide nanowire arrays and their optical absorption properties , 2003 .

[12]  R. Palombari.  Influence of surface acceptor–donor couples on conductivity and other electrochemical properties of nonstoichiometric NiO at 200 °C , 2003 .

[13]  Qi-Zong Qin,et al.  Nanocrystalline tin oxides and nickel oxide film anodes for Li-ion batteries , 2003 .

[14]  E. Arashiro,et al.  Voltammetric characterization of an iridium oxide-based system: the pseudocapacitive nature of the Ir0.3Mn0.7O2 electrode , 2002 .

[15]  J. Weidner,et al.  Capacitance studies of cobalt oxide films formed via electrochemical precipitation , 2002 .

[16]  J. Bonevich,et al.  Synthesis, Characterization, and Adsorption Studies of Nanocrystalline Copper Oxide and Nickel Oxide , 2002 .

[17]  Young Soo Yoon,et al.  Electrochemical and structural properties of radio frequency sputtered cobalt oxide electrodes for thin-film supercapacitors , 2001 .

[18]  T. Lassali,et al.  Effect of the Co3 O 4 Introduction in the Pseudocapacitive Behavior of IrO2-Based Electrode , 2001 .

[19]  A. Hagfeldt,et al.  Purpose-Built Anisotropic Metal Oxide Material: 3D Highly Oriented Microrod Array of ZnO , 2001 .

[20]  Anders Hagfeldt,et al.  Spectroelectrochemistry of Nanostructured NiO , 2001 .

[21]  E. Kalu,et al.  Cyclic voltammetric studies of the effects of time and temperature on the capacitance of electrochemically deposited nickel hydroxide , 2001 .

[22]  Venkat Srinivasan,et al.  Studies on the Capacitance of Nickel Oxide Films: Effect of Heating Temperature and Electrolyte Concentration , 2000 .

[23]  J. A. Ritter,et al.  Characterization of Sol‐Gel‐Derived Cobalt Oxide Xerogels as Electrochemical Capacitors , 1998 .

[24]  J. Weidner,et al.  An Electrochemical Route for Making Porous Nickel Oxide Electrochemical Capacitors , 1997 .

[25]  M. Rajamathi,et al.  On the existence of a nickel hydroxide phase which is neither α nor β , 1997 .

[26]  Wendy G. Pell,et al.  Self-discharge and potential recovery phenomena at thermally and electrochemically prepared RuO2 supercapacitor electrodes , 1997 .

[27]  Jim P. Zheng,et al.  Hydrous Ruthenium Oxide as an Electrode Material for Electrochemical Capacitors , 1995 .

[28]  S. Joiret,et al.  Electrochromic Behavior of Nickel Oxide Electrodes II . Identification of the Bleached State by Raman Spectroscopy and Nuclear Reactions , 1991 .

[29]  R. Torresi,et al.  Electrochromic Behavior of Nickel Oxide Electrodes I . Identification of the Colored State Using Quartz Crystal Microbalance , 1991 .