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PdZn合金催化甲醇水蒸气重整反应的理论研究

摘要第4-7页
ABSTRACT第7-10页
Chapter 1 Introduction第14-23页
    1.1 The significance of new energy source investigation第14-16页
    1.2 The power of theoretical measures第16-17页
    1.3 Present situation for MSR investigation on Pd/ZnO system第17-21页
        1.3.1 Reaction mechanism第17-19页
        1.3.2 The controversial issues about active phase第19-20页
        1.3.3 Water activation第20-21页
    1.4 The investigation content and goal of this dissertation第21-23页
Chapter 2 Density functional theory and computation methods第23-35页
    2.1 Density functional theory第23-27页
        2.1.1 Kohn-Sham theory第24页
        2.1.2 Exchange-correlation functionals第24-27页
    2.2 Theoretical models and plane-wave approach第27-29页
        2.2.1 Theoretical models第27-28页
        2.2.2 Bloch theorem and plane-wave approach第28-29页
    2.3 Pseudopotentials第29-31页
    2.4 Analysis of the electronic properties第31-33页
        2.4.1 Density of states第31-32页
        2.4.2 Charge density analysis第32-33页
    2.5 Structure optimization methods第33-34页
    2.6 Calculation of reaction barriers第34-35页
Chapter 3 Effect of Zn on the adsorption of CO on Pd (111)第35-52页
    3.1 Introduction第35-36页
    3.2 Computational details and models第36-39页
    3.3 Results第39-43页
        3.3.1 CO adsorption on Zn|~1Pd (111) surface第39-42页
        3.3.2 CO adsorption on Zn|~2Pd (111) surface第42-43页
    3.4 Discussions第43-51页
    3.5 Conclusion第51-52页
Chapter 4 Methanol dehydrogenation on various Pd-Zn surface alloys第52-70页
    4.1 Introduction第52-53页
    4.2 Models and computational details第53-55页
    4.3 Results第55-64页
        4.3.1 Adsorption of methanol, methoxide, formaldehyde and formyl第55-59页
            4.3.1.1 Methanol adsorption第55-57页
            4.3.1.2 Methoxide adsorption第57-58页
            4.3.1.3 Formaldehyde adsorption第58页
            4.3.1.4 Formyl adsorption第58-59页
        4.3.2 Dehydrogenation mechanisms第59-64页
            4.3.2.1 Dehydrogenation of methanol第60-62页
            4.3.2.2 Dehydrogenation of methoxide第62页
            4.3.2.3 Dehydrogenation of formaldehyde第62-64页
            4.3.2.4 Dehydrogenation of formyl第64页
    4.4 Discussion第64-69页
    4.5 Conclusions第69-70页
Chapter 5 Study towards the reactivity of the Pd(111) surface with low Zn deposition第70-92页
    5.1 Introduction第70-72页
    5.2 Computational details and models第72-75页
        5.2.1 MC simulations setup第72-74页
        5.2.2 DFT calculation details第74-75页
    5.3 Results and discussion第75-90页
        5.3.1 MC simulation第75-78页
        5.3.2 DFT calculations第78-90页
            5.3.2.1 Adsorption of CH_2O第78-87页
                5.3.2.1.1 CH_2O adsorption on flat Pd(111) surfaces第79-81页
                5.3.2.1.2 CH_2O adsorption on surface clusters第81-87页
                    5.3.2.1.2.1 CH_2O adsorption on surface clusters containing both Pd and Zn第82-84页
                    5.3.2.1.2.2 CH_2O adsorption on Zn surface clusters第84-85页
                    5.3.2.1.2.3 CH_2O adsorption on Pd surface clusters第85-87页
            5.3.2.2 Reactions of CH_2O on surface clusters第87-90页
    5.4 Conclusions第90-92页
Chapter 6 Water adsorption and dissociation on PdZn near surface alloy第92-113页
    6.1 Introduction第92-93页
    6.2 Models and computational details第93-95页
    6.3 Results and discussions第95-112页
        6.3.1 Water adsorption and dissociation on flat (111) surfaces第95-104页
            6.3.1.1 Water adsorption第95-100页
            6.3.1.2 Water dissociation第100-104页
        6.3.2 Water adsorption and dissociation on stepped (221) surfaces第104-111页
            6.3.2.1 Water adsorption第105-106页
            6.3.2.2 Water dissociation第106-111页
        6.3.3 Generally remarks第111-112页
    6.4 Conclusions第112-113页
Chapter 7 Reaction mechanisms of MSR on the PdZn(111) surface of bulk alloy第113-140页
    7.1 Introduction第113-115页
    7.2 Computational methodology and models第115-116页
    7.3 Results第116-132页
        7.3.1 Reaction of CH_3OH第116-119页
            7.3.1.1 O-H bond breaking第117-118页
            7.3.1.2 C-H bond breaking第118-119页
            7.3.1.3 C-O bond breaking第119页
        7.3.2 Reaction of CH_3O第119-122页
            7.3.2.1 C-H bond breaking第119-120页
            7.3.2.2 C-O bond breaking第120-122页
        7.3.3 Reaction of CH_2O第122-125页
            7.3.3.1 C-H bond breaking第122-124页
            7.3.3.2 C-O bond breaking第124页
            7.3.3.3 Combination of CH_2O with OH第124-125页
        7.3.4 Reaction of H_2COOH第125-127页
            7.3.4.1 O-H bond breaking第125-127页
            7.3.4.2 C-O bond breaking第127页
        7.3.5 Reaction of H_2COO第127-130页
            7.3.5.1 C-H bond breaking第128-129页
            7.3.5.2 C-O bond breaking第129-130页
        7.3.6 Reaction of HCOO第130-132页
            7.3.6.1 C-H bond breaking第130-131页
            7.3.6.2 C-O bond breaking第131-132页
    7.4 Discussions第132-138页
    7.5 Conclusions第138-140页
Chapter 8 Summary第140-142页
Reference第142-158页
攻读博士学位期间发表及完成的论文情况第158-159页
致谢第159-160页

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