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Mn基氧化物正极材料在电化学储能装置中的应用及其储能机制探讨

摘要第5-7页
Abstract第7-9页
Chapter 1 Introduction第13-31页
    1.1 Introduction of supercapacitor第13-20页
        1.1.1 Background on supercapacitor第13-15页
        1.1.2 Classification of supercapacitor第15-16页
        1.1.3 Pseudo-capacitors第16-20页
    1.2 Introduction of sodium ion battery (SIBs)第20-28页
        1.2.1 Background on SIBs第20-22页
        1.2.2 Cathode Materials for SIBs第22页
        1.2.3 Structure and nomenclature of layered cathode materials for SIBs第22-23页
        1.2.4 Challenges of NaxMO_2 structures----destabilizing mechanisms第23-25页
        1.2.5 Strategies to Enhance the Electrochemical Performance第25-28页
    1.3 In situ characterization of electrochemical process第28-29页
    1.4 Research questions to be addressed第29-30页
        1.4.1 Charge storage mechanism for MnO_2 pseudocapaictor第29页
        1.4.2 Poor cycling stability of Mn-rich layered oxides cathode for SIBs第29-30页
    1.5 Research objectives第30-31页
Chapter 2 Phase evolution of an alpha MnO_2 based electrode for pseudo-capacitorsprobed by in operando Raman spectroscopy第31-42页
    2.1 Introduction第31-32页
    2.2 Experimental第32-33页
        2.2.1 Sample synthesis第32页
        2.2.2 Electrochemical test第32-33页
        2.2.3 Characterization第33页
    2.3 Results and discussion第33-40页
    2.4 Conclusions第40-42页
Chapter 3 Investigation into the origin of pseudocapacitive behavior of Mn_3O_4 electrodes using operando Raman spectroscopy第42-57页
    3.1 Introduction第42-43页
    3.2 Experimental第43-44页
        3.2.1 Preparation of Mn_3O_4 thin film第43页
        3.2.2 Characterization第43-44页
        3.2.3 Electrochemical measurement第44页
    3.3 Results and discussion第44-55页
        3.3.1 structure studies第44-46页
        3.3.2 Surface morphological study第46页
        3.3.3 Capacitive behaviour第46-49页
        3.3.4 In operando Raman spectroscopy studies第49-55页
    3.4 Conclusion第55-57页
Chapter 4 Investigation to tunable protons involved energy storage process of α-MnO_2 by pre-adsorption of Mn~(2+) using in-situ Raman spectroscopy第57-70页
    4.1 Introduction第57-58页
    4.2 Experimental section第58-59页
        4.2.1 Sample preparation第58页
        4.2.2 Characterization第58-59页
        4.2.3 Electrochemical measurement第59页
    4.3 Results and Discussion第59-68页
    4.4 Conclusion第68-70页
Chapter 5 The origin of high stability for δ-MnO_2 pseudo-capacitive electrode: one ofthe most attractive electrodes for commercial applications第70-92页
    5.1 Introduction第70-72页
    5.2 Experimental第72-73页
        5.2.1 Preparation of Ga-doped ZnO nano wires (GZO NWs) on carbon fiber paper(CFP)第72页
        5.2.2 Characterization第72-73页
        5.2.3 Electrochemical measurement第73页
    5.3 Results and discussion第73-90页
        5.3.1 structure studies of as-prepared electrodes第73-78页
        5.3.2 Electrochemical evaluation of thin MnO_2 film electrodes第78-82页
        5.3.3 Electrochemical evaluation of thick MnO_2 film electrodes第82-84页
        5.3.4 Capacitance calculation第84页
        5.3.5 Structure studies of long-term cycled electrodes第84-86页
        5.3.6 In operando Raman spectra and DFT calculation第86-90页
    5.4 Conclusion第90-92页
Chapter 6 Design of High-Performance Cathode Materials with Single-Phase Pathwayfor Sodium Ion Batteries: A Study on P2-Na_x(Li_yMn_(1-y))O_2 Compounds第92-113页
    6.1 Introduction第92-94页
    6.2 Experimental Section第94-95页
        6.2.1 Materials preparation第94页
        6.2.2 Electrochemical testing第94页
        6.2.3 Materials characterization第94-95页
    6.3 Results第95-109页
        6.3.1 Synthesis and in situ XRD for synthesis第95-97页
        6.3.2 Material characterization第97-99页
        6.3.3 Electrochemical properties第99-101页
        6.3.4 Single-phase pathway in electrochemical cycling第101-109页
    6.4 Discussion第109-111页
    6.5 Conclusion第111-113页
Conclusions and Future outlook第113-116页
    Conclusions第113-114页
    Future outlook第114-116页
Reference第116-131页
攻读博士学位期间取得的研究成果第131-133页
致谢第133-134页
附件第134页

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