Nobel Metal Nanoparticles/Nitrogen-Doped Porous Graphene Com
发布时间：2020-12-05 07:43
石墨烯、碳纳米管/纤维和纳米多孔碳是常见的纳米结构碳材料。由于其低成本,丰富的结构特征,高的化学和热稳定性以及优良的导电性,碳材料已经被广泛应用于传感器或生物传感器的电极材料。在纳米碳材料中,石墨烯（graphene,GR）是sp2杂化碳原子的2D纳米片,被广泛用作1D和3D材料的基本构件。石墨烯中的长程π-共轭赋予其具有非凡的性能,如高表面积,非常快的带电载流子迁移率和高导热性。可以采用制备多孔结构或者杂原子掺杂了提高和改善GR电催化性能及应用。多孔GR（porous graphene,PGR）是在石墨烯片层内通过刻蚀的方法产生一些孔,或者通过石墨烯片层的褶皱产生孔道结构。PGR中孔特性有效地增加比表面积,并减缓了GR层与层间的Van Der Waals作用力,因而减少了石墨烯纳米片层的不可逆堆积。此外,石墨烯的多孔结构可以更有效地暴露催化剂的表面活性位点并且有利于离子传输。另一方面,杂原子掺杂可以改变碳的电子性质并在GR表面上产生额外的缺陷,从而极大地提高了PGR的电化学性能。此外,为了进一步改善N掺杂PGR的性质和增加反应活性,将贵金属纳米粒子（nanoparticles,NP）...
【文章来源】：东北师范大学吉林省 211工程院校 教育部直属院校
【文章页数】：86 页
【学位级别】：硕士
【文章目录】：
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
本文编号：2899132
【文章来源】：东北师范大学吉林省 211工程院校 教育部直属院校
【文章页数】：86 页
【学位级别】：硕士
【文章目录】：
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
本文编号：2899132
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