TITLE

Electrochemically deposited nanowhiskers of nickel oxide as a high-power pseudocapacitive electrode

AUTHOR(S)
Prasad, K. Rajendra; Miura, Norio
PUB. DATE
November 2004
SOURCE
Applied Physics Letters;11/1/2004, Vol. 85 Issue 18, p4199
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
High performance pseudocapacitive characteristics of potentiodynamically deposited NiO are reported here. Three-dimensional nanowhiskers of NiO were prepared by potentiodynamically depositing nickel hydroxide on stainless steel (SS) and heating the hydroxide in air at 300 °C for 3 h. The scan rate used for the deposition was 200 mV s-1 and the electrolyte solution used was 100 mM NiCl2·6H2O at a pH 8.0. The NiO-covered SS electrodes were characterized by cyclic voltammetry (CV) in 1 M KOH electrolyte for the redox supercapacitor application. A maximum specific capacitance (SC) of 138 F g-1 was obtained from the CV at a scan rate of 100 mV s-1. A SC value of 82 F g-1 was obtained even at the very high CV scan rate of 500 mV s-1, demonstrating the high-power characteristics of NiO. Long cycle-life of the NiO nanowhiskers was also demonstrated. High specific capacitance, high power, high stability, and low cost of the electrode materials are favorable factors for commercial applications.
ACCESSION #
14945455

 

Related Articles

  • Effect of Temperature on Thermogalvanic Coupling of Alloy 31 in Libr Solutions Studied by Means of Imposed Potential Measurements. Fernández-Domene, R. M.; Blasco-Tamarit, E.; García-García, D. M.; García-Antón, J. // International Journal of Electrochemical Science;Aug2011, Vol. 6, p3292 

    Corrosion resistance of Alloy 31, a highly alloyed stainless steel (UNS N08031) were studied in heavy brine LiBr solutions (400, 700 and 992 g/l) at different temperatures using electrochemical techniques. The mixed potential theory was used to evaluate thermogalvanic corrosion of Alloy 31 in...

  • Influence of corrosion in media with different pH on local electrode potentials of steels. Khoma, M.; Sysyn, H. // Materials Science;May2010, Vol. 46 Issue 3, p383 

    We present results of investigations of the microelectrochemical heterogeneity of surfaces of steels 20, 30KhMA, and 12Kh21N5T after corrosion in chloride-sulfide media. The character of corrosion of steels in solutions containing chloride and sulfide ions is elucidated. It is shown that, during...

  • Sensitive voltammetric detection of clomipramine at 16-mercapto-hexadecanoic acid self-assembled monolayer modified gold electrode. Fei Huang; Song Qu; Song Zhang; Baohong Liu; Jilie Kong // Microchimica Acta;May2008, Vol. 161 Issue 1/2, p149 

    Clomipramine, an effective and important antipsychotic drug with low redox activity and poor hydrophilicity, was found to effectively accumulate on hydrophobic 16-mercaptohexadecanoic acid (i.e. MHA) self-assembled monolayer (SAM) modified gold electrode (i.e. MHA/Au) and generating a sensitive...

  • Flexible, organic, ion-sensitive field-effect transistor. Loi, Andrea; Manunza, Ileana; Bonfiglio, Annalisa // Applied Physics Letters;3/7/2005, Vol. 86 Issue 10, p103512 

    Organic ion-sensitive field-effect transistors assembled on flexible plastic films have been fabricated. A thin Mylarâ„¢ foil acts both as substrate and gate dielectric. The active layer is vacuum-sublimed on one side of the foil, prepatterned with bottom-contact Au source and drain...

  • Brochure Details Stainless Steel Electrodes.  // Welding Journal;Oct2005, Vol. 84 Issue 10, p74 

    Introduces the brochure, a 12-page, well illustrated, full-color that provides useful reference information concerning stainless steel electrode metallurgy, technology, quality and productivity.

  • CONSIDERATION ON PITTING CORROSION OF STAINLESS STEEL. Cret, P.; Badea, G. E.; Lolea, M; Maior, I.; Cojocaru, A. // Journal of Sustainable Energy;Dec2011, Vol. 2 Issue 4, p1 

    The pitting corrosion of 18Cc-10Ni stainless steel studied as pH function, by the electrochemical measurement applying potentiostatic technique is shown. The critical potential of pitting formation is independent of pH in acid solutions (pH range of 0.5- 3.4) and it shifts to positive direction...

  • Decolorization of High Polluted Textile Wastewater by Indirect Electrochemical Oxidation Process. Miled, W.; Said, A. Haj; Roudesli, S. // Journal of Textile & Apparel Technology & Management (JTATM);Spring2010, Vol. 6 Issue 3, p1 

    The present study attempts to treat a synthetic textile effluent containing indigo dye by indirect electro-oxidation. Electrochemical degradation process was performed using Graphite as anode and Stainless Steel as cathode. The influence of effluent pH, supporting electrolyte concentration and...

  • Electrochemical Studies of the pH Dependence of Cu(II) Reduction in Aqueous Britton-Robinson Buffer Solution. Shaikh, A. A.; Firdaws, J.; Badrunnessa; Serajee, S.; Rahman, M. S.; Bakshi, Pradip K. // International Journal of Electrochemical Science;Jul2011, Vol. 6, p2333 

    The electrochemical reduction of Cu(II) has been studied in aqueous Britton-Robinson (BR) buffer medium with glassy carbon electrode (GCE) at various pH values. It is observed that at low pH values Cu(II) follows two-step electrochemical reduction while at high pH it undergoes one-step reduction...

  • Utility of Activated Glassy Carbon and Pencil Graphite Electrodes for Voltammetric Determination of Nalbuphine Hydrochloride in Pharmaceutical and Biological Fluids. Elqudaby, Hoda M.; Hendawy, Hassan A. M.; Souaya, Eglal R.; Mohamed, Gehad G.; Eldin, Ghada M. G. // International Journal of Electrochemistry;1/27/2016, p1 

    This work compares voltammetric response of nalbuphine hydrochloride (NP·HCl) at both activated glassy carbon and pencil graphite electrodes. The electrochemical oxidation of the drug was studied using cyclic voltammetry (CV), differential pulse voltammetry (DPV), and square wave voltammetry...

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics