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Table of contents
Chapter I: Bibliography
1.1 Introduction
1.2 General introduction of microfluidic systems
1.2.1 The development of microsystems
1.2.2 Microfluidic systems for chemical engineering
1.2.3 Materials for microreactors fabrication
1.2.4 Fabrication methods
1.2.5 Other components of a microfluidic system
1.2.6 Sealing of a microreactor
1.3 Plasma surface modifications of microchannels
1.3.1 Definition of a plasma
1.3.2 Applications of plasma
1.3.3 Plasma enhanced chemical vapor deposition (PECVD)
1.3.4 Influence of the parameters during PECVD process
1.3.5 Amino functionalization by PECVD method
1.4 Catalysts and their immobilization
1.4.1 Gold nanoparticles (AuNPs) as catalysts
1.4.2 Zeolite as a support material
1.4.3 Synthesis of AuNPs
1.4.4 Immobilization of AuNPs
1.4.5 Deposition zeolite and gold@zeolite on substrate surface
1.5 Application: oxidation in microreactors
1.5.1 Liquid phase oxidation of benzyl alcohol and its products
1.5.2 Influence of reaction conditions
1.5.3 Recent studies of using microsystem for benzyl alcohol oxidation
1.6 Objectives of this work
1.7 Outline
Chapter II Characterization methods
2.1 Contact angle measurement
2.2 Fourier Transform infrared spectroscopy (FTIR)
2.3 X-ray Photoelectron Spectroscopy (XPS)
2.4 Spectroscopic ellipsometer
2.5 Field-emission scanning electron microscopy (FESEM)
2.6 Transmission electron microscopy (TEM)
2.7 Zeta potential
2.8 X-ray diffraction (XRD)
2.9 Ultraviolet-visible spectroscopy (UV-Vis)
2.10 High performance liquid chromatography (HPLC)
Chapter III Deposition of amine groups by means of APTES PECVD process
3.1 Abstract
3.2 Introduction
3.3 Experimental
3.3.1 Materials and chemicals
3.3.2 APTES plasma polymerization
3.3.3 Characterization
3.4 Results and discussion
3.4.1 Active gas selection
3.4.2 Influence of various substrates
3.4.3 Influence of deposition time
3.4.4 Influence of working pressure
3.4.5 Influence of working power
3.5 Conclusion
Chapter IV A comparison study of two methods for glass surface functionalization and their application in gold nanoparticles (AuNPs) immobilization
4.1 Abstract
4.2 Introduction
4.3 Experimental
4.3.1 Materials and chemicals
4.3.2 Deposition of APTES using the wet chemistry method
4.3.3 Deposition of APTES using PECVD method
4.3.4 Synthesis and immobilization of AuNPs
4.3.5 Characterization of modified surfaces
4.4 Results and discussion
4.4.1 APTES deposition and surface Characterization
4.4.2 Study of the immobilization of AuNPs
4.5 Conclusion
Chapter V Deposition of Y-zeolite and Au@Y-zeolite on amine functionalized surface
5.1 Abstract
5.2 Introduction
5.3 Experimental
5.3.1 Materials and chemicals
5.3.2 Synthesis and immobilization of AuNPs
5.3.3 Immobilization of gold on zeolite surface using APTES and MPTES
5.3.4 Deposition of APTES using PECVD method
5.3.5 Deposition of zeolite and Au@zeolite
5.3.6 Coating stability test in flowing water
5.3.7 Characterizations
5.4 Results and discussion
5.4.1 Characterization of Y zeolite
5.4.2 Immobilization of AuNPs on Y type zeolite using APTES and MPTES
5.4.3 Deposition of zeolite and Au@zeolite on COC surface
5.5 Conclusion
Chapter VI Oxidation of benzyl alcohol in catalytic microreactors
6.1 Abstract
6.2 Introduction
6.3 Experimental
6.3.1 Fabrication of the microreactor
6.3.2 Amine functionalization of microchannel by plasma enhanced chemical vapor deposition
6.3.3 Synthesis and immobilization of AuNPs
6.3.4 Synthesis of Au@zeolite
6.3.5 Deposition of zeolite and Au@zeolite
6.3.6 Sealing of the catalytic microreactor
6.3.7 Experimental set up of microsystem for oxidizing benzyl alcohol
6.3.8 Working conditions in microsystem
6.4 Results and discussion
6.4.1 Identification of standard retention time and peak area
6.4.2 Catalytic activity of gold immobilized microreactor
6.4.3 The influence of Y-zeolite on gold in microsystem
6.5 Conclusion
Chapter VII General conclusions and perspectives
7.1 General conclusions
7.2 Perspectives



