二硫化鉬是一種過渡金屬硫化物,是由一個鉬層夾在兩個硫?qū)又g構(gòu)成的二維層狀材料,其層與層之間靠弱范德華力相互作用堆疊。MoS2因其獨特的電子特性、光學(xué)特性及其機械性能受到廣泛關(guān)注,這些獨特的性質(zhì)與其較高的離子電導(dǎo)率、較高的理論容量以及酸性穩(wěn)定性息息相關(guān)。MoS2納米材料的制備方法多種多樣,例如機械剝離法、液相剝離法、化學(xué)氣相沉積法、原子層沉積法、高溫退火以及水熱或溶劑熱法。MoS2納米片在制備與金屬、金屬氧化物、過渡金屬硫化物、碳基材料和MOFs等材料的復(fù)合納米材料方面具有很大的前景。MoS2納米片及其復(fù)合材料在能源儲存和轉(zhuǎn)化、傳感、電子和生物等領(lǐng)域有著廣泛的應(yīng)用。因此,我們設(shè)計了以MoS2為基礎(chǔ)的一系列復(fù)合材料,研究其電化學(xué)性能。本論文包括以下幾個部分:1.通過靜電作用,利用帶正電的PDDA有效地連接了均帶負電的CNT@MoS2和PMo12,顯著提高了各組分的協(xié)同效應(yīng)。通過FT-IR、31P、XRD、Raman、Zeta 電勢、SEM、TEM、HRTEM、XPS 等多種方法對復(fù)合材料的組成和形貌進行了表征。所制備的CNT@MoS2/PDDA/PMo12具有110 F g-1的高比電容、... 

【文章來源】：北京化工大學(xué)北京市 211工程院校 教育部直屬院校

【文章頁數(shù)】：118 頁

【學(xué)位級別】：博士

【文章目錄】：
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
博士研究生學(xué)位論文答辯委員會決議書



本文編號：2992891

boshi