알킬 또는 알코올 원자단으로 치환된 그래핀 시트를 제조하는 새로운 합성방법

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The unique electronic property of graphene sheets provides potential applications in nanocomposites and fabricating various nicroelectrical devices, such as field-effect transistors, ultrasensitive sensors, and electromechanical resonators. Several effective techniques have been developed for preparing graphene sheets. Among these technique, mechanical exfoliation can produce pure graphene and epitaxial graphene sheets have been prepared by treatment of silicon carbide wafers at high temperature. Recently, graphene sheets have been developed by chemical reduction method from graphene oxide. In this work, we have synthesized graphene sheets based on mechanical exfoliation and chemical reduction methods. Graphene sheets were characterized by field-effect scanning electron microscope (FE-SEM). The size of graphene sheets was from few hundreds nanometer to decades micrometer.
Alternative Title
New methods for Fabrication of Alkyl and Alcohol-substituted Graphene Sheets
Alternative Author(s)
Jin, seong hun
일반대학원 화학과
Awarded Date
Table Of Contents
Ⅰ. Introduction 1
Ⅱ. Experimental Section 2
2.1. general 3
2.2.초음파 분쇄방법을 이용한 Graphene 시트의 합성 4
2.3. 화학적 Hummer's방법을 이용한 graphene 시트의 합성 5

Ⅲ. Results and Discussion 6
Ⅳ. Conclusion 7
Ⅴ. References 8
Ⅰ. Introduction 9
Ⅱ. Experimental Section 10
2.1. generals 11
2.2. Graphite Oxide의 합성 12
2.3. 1-methyl-2,3,4,5-tetraphenyl-1hydro-silole의 합성 13
2.4. 1-Methyl-1-(3-amino)propyl-2,3,4,5-tetraphenylsilole의 합성 14
2.5. Methyl silole graphite oxide의 합성 15
2.6. Amino propyl silole graphite oxide의 합성 16
2.7. Amino propyl silole graphene의 합성 17
Ⅲ. Results and Discussion
3.1.FE-SEM Images of Graphite, GO, and MSGO 18
3.2.Comparison for PL Efficiency GO, Silole, and MSGO 19
3.3.FT-IR Data of GO and MSGO 20
3.4.Absorption and Photoluminescence Spectrum of MSGO 21
3.5.Comparison for PL Efficiency MSGO and MSG 22
Ⅳ. Conclusion 23
Ⅴ. References 24
Ⅰ. Introduction 25
Ⅱ. Experimental Section 26
2.1. generals 27
2.2.synthesis of alkylalcohol-derivatized graphene 28
Ⅲ. Results and Discussion 29
Ⅳ. Conclusion 30
Ⅴ. References 31
Table 1. FT-IR Data. 32
Figure 1. Schematic diagram for the fabrication of graphene sheet from
graphite powder. 33
Figure 2. FE-SEM Images ; (A) graphite, (B) graphene sheet by using sonication method. (C)
graphene sheet by using Hummer's method. 34
Figure 3. Absorption spectrum of graphene oxide. 35
Figure 4. Reduction from graphene oxide to graphene through treatment of
hydrazine. 36
Figure 5. Raman spectroscopy in graphite. 37
Figure 6. Raman spectroscopy in graphite. 38
Figure 7. Raman spectroscopy in grapheneoxide. 39
Figure 8. SEM of Graphite. 40
Figure 9. SEM of Graphite. 41
Figure 10. SEM image of MSGO. 42
Figure 11. GO and MSGO in soluble. 43
Figure 12. Comparison for PL Efficiency. 44
Figure 13. FT-IR Data of GO and MSGO. 45
Figure 14. 흡수 및 형광 스펙트럼. 46
Figure 15. Comparison for PL Efficiency. 47
Figure 16. (a) UV-vis absorption spectra and (b) FT-IR spectra of graphene. 48
Oxide and dodecylalcohol-graphene, respectively. 49
Figure 17. FE-SEM Images of Graphite, GO, Functionalized Graphene. 50
Figure 18. Fluorescence spectra of GO and dodecylalcohol-graphene. 51
조선대학교 일반대학원
진성훈. (2010). 알킬 또는 알코올 원자단으로 치환된 그래핀 시트를 제조하는 새로운 합성방법.
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