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过渡金属氧化物(ZnO,Fe2O3)纳米结构的合成表征及在丙酮气敏传感,带隙工程和电催化析氢反应中的应用

摘要第5-7页
Abstract第7-9页
Chapter 1. General introduction第16-48页
    1.1. Sensors第16-23页
        1.1.1. Gas sensors第17-18页
        1.1.2. Nanotechnology and Nanomaterials第18-20页
        1.1.3. Semiconducting gas sensors第20-21页
        1.1.4. ZnO as gas sensor第21-23页
    1.2. General properties of ZnO第23-28页
        1.2.1. Electronic band structure of ZnO第25-26页
        1.2.2. Quantum confinement and band gap engineering第26-28页
    1.3. Synthesis of ZnO, General Procedure第28-31页
        1.3.1. Mechanism of ZnO crystal growth第29-31页
        1.3.2. Parameters of synthesis in alcoholic medium第31页
    1.4. Doping and codoping of ZnO semiconductor第31-32页
    1.5. Electrocatalytic Hydrogen evolution reaction第32-36页
        1.5.1. Mechanism for HER第33-36页
    1.6. Significant parameters in HER第36-38页
        1.6.1. Gibbs free energy第36页
        1.6.2. Tafel slope and exchange current density第36-37页
        1.6.3. Catalytic turnover frequency (TOF)第37-38页
        1.6.4. Catalytic onset potential第38页
    1.7. Aims and Objectives of this thesis第38-40页
    References第40-48页
Chapter 2. Synthesis, characterization, and applications of zinc oxide nanoparticles and nanorodsin acetone gas detection第48-64页
    2.1. Introduction第48-49页
    2.2. Experimental第49-51页
        2.2.1. Synthesis of ZnO nanoparticles and nanorods第49-50页
        2.2.2. Fabrication and Measurement of Gas Sensors第50-51页
    2.3. Results and discussion第51-58页
        2.3.1. X-ray Diffraction (XRD)第51-52页
        2.3.2. Transmission electron microscopy (TEM)第52-53页
        2.3.3. UV Visible near infrared spectroscopy (UV VIS-NIR)第53-54页
        2.3.4. Photolximinescence Spectroscopy (PL)第54-55页
        2.3.5. Gas sensing property of ZnO nanoparticles and nanorods第55-58页
    2.4. Conclusions第58-60页
    References第60-64页
Chapter 3.Band gap engineering of transition metal (Ni/Co) codoped in zinc oxide (2nO)nanoparticles第64-82页
    3.1. Introduction第64-66页
        3.1.1.Significance of codoped Ni/Co tunable ZnO nanostructures第65-66页
    3.2. Esperimental Procedure第66-68页
        3.2.1. Chemicals used第66-67页
        3.2.2. Synthesis procedure第67页
        3.2.3. Characterization第67-68页
    3.3. Results and discussions第68-75页
        3.3.1. X-ray diffrraction第68-69页
        3.3.2. Transmission electron microscopy (TEM)第69-70页
        3.3.3. UV- visible spectroscopy第70-72页
        3.3.4. PL Spectroscopy第72-73页
        3.3.5. Fourier transform infrared (FTIR)第73-74页
        3.3.6. X-ray photoelectron spectroscopy第74-75页
    3.4. Conclusions第75-77页
    References第77-82页
Chapter 4. Synthesis, characterization and applications of pH controlled Fe_2O_3 nanoparticles forelectrocatalytic hydrogen evolution reaction第82-94页
    4.1. Introduction第82-83页
    4.2. Experimental procedure第83-84页
        4.2.1. Synthesis procedure第83-84页
        4.2.2. Electrocatalytic measurements第84页
    4.3. Results and Discussions第84-90页
    4.4. Conclusions第90-91页
    References第91-94页
Chapter 5. General Conclusions and Future Perspectives第94-98页
    5.1. Conclusions第94-95页
    5.2. Future Perspectives第95-98页
References第98-99页
Acknowledgement第99-101页
List of Publications第101-103页

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