Please use this identifier to cite or link to this item: http://hdl.handle.net/10603/205408
Title: SYNTHESIS AND CHARACTERIZATION OF Mn AND Ru DOPED COBALT OXIDE THIN FILMS FOR THEIR USE IN SUPERCAPACITOR APPLICATIONS
Researcher: S. V. Khavale
Guide(s): B. J. Lokhande
Keywords: SYNTHESIS AND CHARACTERIZATION OF Mn AND Ru DOPED COBALT OXIDE THIN FILMS
University: Solapur University
Completed Date: 30-04-2017
Abstract: newline Recently, researchers are diverted their attention towards the preparation of composite/mixed oxide electrodes for electrochemical capacitors and have been extensively demonstrated to improve the performance of ES electrodes, The properties of the pristine Co3O4, MnO2: Co3O4 and RuO2:Co3O4 can control some of the parameters like the ingredients, film thickness, solution concentration, deposition time, annealing temperature and deposition scan rates. . Chapter-I summarized general introduction to supercapacitor and its importance, literature survey regarding concerned materials. Chapter-II describes the theoretical aspects of supercapacitor. It includes construction of supercapacitor, types of electrode and electrolyte used for the supercapacitor fabrication. Chapter-III explains theoretical background of electrodeposition set up, thin film preparation using electrodeposition. This chapter also explains with different characterization techniques. Chapter-IV elaborates the effect of ingredients, solution concentration, deposition time, annealing temperature and deposition scan rate on the properties of pristine Co3O4 thin films prepared via aqueous media. Intialy Co3O4 thin films were synthesized by potentiodynamic electrodeposition technique using variations in the parameters such as ingredient, solution concentration and deposition time. The prepared samples were analyzed using XRD, FE-SEM, TEM, cyclic voltammetery, chronopotentiometry and electrochemical impedance spectroscopy. Optimized ingredient, Molarity and deposition time were Cobalt chloride, 0.1 M and 30 min. respectively. Crystallographic study shows polycrystalline FCC structure of the deposit. Cyclic voltammogram reveals pseudocapacitive behavior. The calculated highest value of SC at the scan rate 5 mV/s was 237.68 F/g in 1 M KOH, within the potential window - 0.92 to 0.45 V vs Ag/AgCl. The calculated maximum value of SE, SP and and#951; were 4.91 Wh/kg, 28.69 kW/kg and 94.78 % respectively. The internal resistance observed using EIS was ~ 3.55 and#937;.
Pagination: 
URI: http://hdl.handle.net/10603/205408
Appears in Departments:Department of Physics

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10.chapter 2.pdfAttached File1.27 MBAdobe PDFView/Open
11.chapter 3.pdf1.8 MBAdobe PDFView/Open
12.chapter 4.pdf3.29 MBAdobe PDFView/Open
13.chapter 5.pdf3.35 MBAdobe PDFView/Open
14.chapter 6.pdf2.69 MBAdobe PDFView/Open
15.chapter 7.pdf885.04 kBAdobe PDFView/Open
16.chapter 8.pdf652.56 kBAdobe PDFView/Open
17. publications.pdf23.04 kBAdobe PDFView/Open
18.published paper.pdf2.11 MBAdobe PDFView/Open
19. abstract.pdf618.28 kBAdobe PDFView/Open
1. title.pdf120.55 kBAdobe PDFView/Open
2.certificates.pdf248.36 kBAdobe PDFView/Open
3. acknowledment.pdf40.94 kBAdobe PDFView/Open
4. index.pdf98.83 kBAdobe PDFView/Open
5. content.pdf127.49 kBAdobe PDFView/Open
6.list of the figures.pdf326.89 kBAdobe PDFView/Open
7. list of the tables.pdf271.23 kBAdobe PDFView/Open
8.nomenclature.pdf264 kBAdobe PDFView/Open
9.chapter 1.pdf710.71 kBAdobe PDFView/Open


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