二硫化钼基纳米复合材料在能源储存和转化领域的应用

发布时间：2021-01-22 08:08

　　二硫化钼是一种过渡金属硫化物,是由一个钼层夹在两个硫层之间构成的二维层状材料,其层与层之间靠弱范德华力相互作用堆叠。MoS2因其独特的电子特性、光学特性及其机械性能受到广泛关注,这些独特的性质与其较高的离子电导率、较高的理论容量以及酸性稳定性息息相关。MoS2纳米材料的制备方法多种多样,例如机械剥离法、液相剥离法、化学气相沉积法、原子层沉积法、高温退火以及水热或溶剂热法。MoS2纳米片在制备与金属、金属氧化物、过渡金属硫化物、碳基材料和MOFs等材料的复合纳米材料方面具有很大的前景。MoS2纳米片及其复合材料在能源储存和转化、传感、电子和生物等领域有着广泛的应用。因此,我们设计了以MoS2为基础的一系列复合材料,研究其电化学性能。本论文包括以下几个部分:1.通过静电作用,利用带正电的PDDA有效地连接了均带负电的CNT@MoS2和PMo12,显著提高了各组分的协同效应。通过FT-IR、31P、XRD、Raman、Zeta 电势、SEM、TEM、HRTEM、XPS 等多种方法对复合材料的组成和形貌进行了表征。所制备的CNT@MoS2/PDDA/PMo12具有110 F g-1的高比电容、... 

【文章来源】：北京化工大学北京市 211工程院校 教育部直属院校

【文章页数】：118 页

【学位级别】：博士

【文章目录】：
摘要
ABSTRACT
Abbreviations
CHAPTER 1 General Introduction
2">    1.1 Structure of MoS2

    1.2 Properties of MoS₂

        1.2.1 Electronic properties
        1.2.2 Optical properties
        1.2.3 Mechanical properties
2">    1.3 Synthesis of MoS₂

        1.3.1 Mechanical exfoliation method
        1.3.2 Liquid exfoliation （LE） method
        1.3.3 Chemical vapor deposition （CVD） method
        1.3.4 Atomic layer deposition （ALD） method
        1.3.5 High-temperature annealing method
        1.3.6 Hydrothermal or solvothermal method
2 in Electrochemistry">    1.4 Applications of MoS₂ in Electrochemistry
2 in rechargeable batteries">        1.4.1 Application of MoS₂ in rechargeable batteries
2 in Supercapacitors">        1.4.2 Application of MoS₂ in Supercapacitors
2 in Hydrogen Evolution Reaction （HER）">        1.4.3 Application of MoS₂ in Hydrogen Evolution Reaction （HER）
    1.5 Carbon-based materials
        1.5.1 Carbon Nanotubes （CNTs）
        1.5.2 Graphene Oxide （GO）
    1.6 Polyoxometalates
    1.7 Statement of the problem
    1.8 Objectives
        1.8.1 General Objective
        1.8.2 Specific Objective
2 sheets on CNT backbone for high-performance supercapacitor">CHAPTER 2 Syngeneic effects of polyoxometalate with MoS₂ sheets on CNT backbone for high-performance supercapacitor
    2.1 Introduction
    2.2 Experimental Section
        2.2.1 Chemicals materials
2">        2.2.2 Synthesis of CNT@MoS₂

        2.2.3 Synthesis of CNT@MoS₂/PDDA/PMo₁₂

        2.2.4 Characterization of materials
        2.2.5 Electrochemical measurements
    2.3 Results and Discussion
        2.3.1 The Basic Structural Characterization
        2.3.2 Electrochemical Performance
    2.4 Conclusions
2WO₆/MoS₂/rGO composites for energy storage application">CHAPTER 3 Heterojunction of nanostructured Bi₂WO₆/MoS₂/rGO composites for energy storage application
    3.1 Introduction
    3.2 Experimental Section
        3.2.1 Chemicals materials
2/rGO">        3.2.2 Synthesis of MoS₂/rGO
2WO₆/MoS₂/rGO">        3.2.3 Synthesis of Bi₂WO₆/MoS₂/rGO
        3.2.4 Characterization of materials
        3.2.5 Electrochemical measurements
    3.3 Results and Discussion
        3.3.1 The Basic Structural Characterization
        3.3.2 Electrochemical Performance
    3.4 Conclusions
2/rGO/PDDA/PMo₁₂ nanocomposite for efficient hydrogen evolution reaction">CHAPTER 4 MoS₂/rGO/PDDA/PMo₁₂ nanocomposite for efficient hydrogen evolution reaction
    4.1 Introduction
    4.2 Experimental Section
        4.2.1 Chemicals materials
2/rGO composite">        4.2.2 Preparation of MoS₂/rGO composite
2/rGO/PDDA/PMo₁₂">        4.2.3 Preparation of MoS₂/rGO/PDDA/PMo₁₂

        4.2.4 Characterization of materials
        4.2.5 Electrochemical measurements
    4.3 Results and discussion
        4.3.1 The Basic Structural Characterization
        4.3.2 Electrochemical properties
    4.4 Conclusion
2@CC heterostructures as highly efficient bifunctional catalyst for electrochemical overall-water splitting">CHAPTER 5 Nanohybridization of Co-Ni/MoS₂@CC heterostructures as highly efficient bifunctional catalyst for electrochemical overall-water splitting
    5.1 Introduction
    5.2 Experimental Section
        5.2.1 Chemicals materials
2/CC">        5.2.2 Synthesis of MoS₂/CC
2/CC">        5.2.3 Synthesis of Co-Ni＠MoS₂/CC
        5.2.4 Characterization of materials
        5.2.5 Electrochemical measurements
    5.3 Results and discussion
        5.3.1 The Basic Structural Characterization
        5.3.2 Electrochemical properties
    5.4 Conclusion
CHAPTER 6 SUMMARY OF THESIS
RECOMMENDATIONS
RESEARCH INNOVATIONS
REFERENCES
AUTHOR'S PUBLICATION
ACKNOWLEDGEMENTS
AUTHOR'S PROFESSIONAL SUMMARY
SUPERVISOR'S PROFESSIONAL SUMMARY
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