石墨烯、碳納米管/纖維和納米多孔碳是常見的納米結(jié)構(gòu)碳材料。由于其低成本,豐富的結(jié)構(gòu)特征,高的化學(xué)和熱穩(wěn)定性以及優(yōu)良的導(dǎo)電性,碳材料已經(jīng)被廣泛應(yīng)用于傳感器或生物傳感器的電極材料。在納米碳材料中,石墨烯（graphene,GR）是sp2雜化碳原子的2D納米片,被廣泛用作1D和3D材料的基本構(gòu)件。石墨烯中的長程π-共軛賦予其具有非凡的性能,如高表面積,非�？斓膸щ娸d流子遷移率和高導(dǎo)熱性。可以采用制備多孔結(jié)構(gòu)或者雜原子摻雜了提高和改善GR電催化性能及應(yīng)用。多孔GR（porous graphene,PGR）是在石墨烯片層內(nèi)通過刻蝕的方法產(chǎn)生一些孔,或者通過石墨烯片層的褶皺產(chǎn)生孔道結(jié)構(gòu)。PGR中孔特性有效地增加比表面積,并減緩了GR層與層間的Van Der Waals作用力,因而減少了石墨烯納米片層的不可逆堆積。此外,石墨烯的多孔結(jié)構(gòu)可以更有效地暴露催化劑的表面活性位點(diǎn)并且有利于離子傳輸。另一方面,雜原子摻雜可以改變碳的電子性質(zhì)并在GR表面上產(chǎn)生額外的缺陷,從而極大地提高了PGR的電化學(xué)性能。此外,為了進(jìn)一步改善N摻雜PGR的性質(zhì)和增加反應(yīng)活性,將貴金屬納米粒子（nanoparticles,NP）... 

【文章來源】：東北師范大學(xué)吉林省 211工程院校 教育部直屬院校

【文章頁數(shù)】：86 頁

【學(xué)位級(jí)別】：碩士

【文章目錄】：
摘要
Abstract
CHAPTER ONE:General introduction
    1.1 Graphene introduction
    1.2 Porous graphene and its composites
    1.3 Nitrogen doped porous graphene and nobel metal nanoparticles deposition
    1.4 Application of PGR
    1.5 Electrochemical sensor based on PGR
    1.6 The aims of this work
CHAPTER TWO:Pt nanoparticles supported on nitrogen-doped porous graphene for sensitive detection of Tadalafil
    2.1.Introduction
    2.2 Experimental
        2.2.1 Chemical Reagents
2 template">        2.2.2 Synthesis of SiO₂ template
        2.2.3 Production of NPGR-X
        2.2.4 Preparation of Pt/NPGR-X,Pt/PGR-120 and Pt/NGR-120
        2.2.5 Electrode fabrication
        2.2.6 Electrochemical measurements
        2.2.7 Material characterization
        2.2.8 Detection of TAD in serum samples
    2.3 Results and discussion
        2.3.1 Structural characterization of PGR-X and Pt/NPGR-X
        2.3.2 Electrochemical detection of TAD in Pt/NPGR-X
    2.4 Conclusion
CHAPTER THREE:Sensitive nonenzymatic detection of glucose at PtPd/porous holey nitrogen-doped graphene
    3.1 Introduction
    3.2 Experimental
        3.2.1 Chemical Reagents
        3.2.2 Electrochemical instrumental and measurements
        3.2.3 Synthesis of PHNG sheets
        3.2.4 Synthesis of PtPd/PHNG-X nanocomposites
        3.2.5 Preparation of nonenzymatic glucose sensor
    3.3 Results and discussion
        3.3.1 Structural characterization of PHNG and PtPd/PHNG-X
        3.3.2 Characterization of PtPd/PHNG
        3.3.3 Direct detection of glucose
    3.4 Conclusion
References
Peer Reviewed Publications generated from this work
Acknowledgements



本文編號(hào)：2899132