Dissertation > Excellent graduate degree dissertation topics show

Study on the Preparation and Catalytic Properties of Nanoparticles Based on Graphene

Author: ShengBaoQiang
Tutor: GuHongWei
School: Suzhou University
Course: Applied Chemistry
Keywords: Graphene Pt Au Hydrogenation Oxidation
CLC: TB383
Type: Master's thesis
Year: 2012
Downloads: 221
Quote: 0
Read: Download Dissertation

Abstract


Graphene(G) is a newly discovered carbon nanomaterial. Because of its large surface area, simple preparation methods, unique physical and chemical properties, graphene has become one of the new hot spots in the nanomaterial field, and has great potential in catalysis especially.In this paper, two kinds of composites (G-Pt and G-Au) were prepared conveniently by exploiting the nucleation of a metal precursor phase. The nanocomposites were characterized by transmission electron microscopy(TEM), X-ray diffraction(XRD), energy dispersive X-ray analysis(EDS), X-ray photoelectron spectroscopy(XPS) respectively, and we further studied the catalytic abilities of the nanocomposites in the reduction and oxidation reactions.(1) G-Pt, in which the Pt nanoparticles were highly dispersed on the graphene sheet with average diameter2-3nm, was used as catalysts in the hydrogenation of a series of unsaturated hydrocarbons and nitroarenes. We optimized the reaction conditions on the reaction solvent and reaction time. Compared with Pt nanowires reported by our group, the G-Pt showed higher catalytic abilities.(2) G-Au, in which the Au nanoparticles were dispersed on the graphene sheet, was used as catalysts in the oxidation of alcohols. We optimized the reaction conditions on the reaction solvent and oxidant. The G-Au showed favorable catalytic activity in the oxidation of alcohols to the corresponding carbonyl compounds.

Related Dissertations

  1. Density Functional Theory Study of Dimethyl Ether Adsorption on the Low-Index Pt Surface,O485
  2. Preparation of Micro-Arc Oxidation Ceramic Coating on Mg Alloy and the Research of Galvanic Corrosion,TG174.453
  3. Multi-walled Carbon Nanotubes Au _AT_ of Pt, Au _AT_ of Pd core-shell structure of the catalyst preparation and electrochemical properties of,O643.36
  4. The alkali fusion recovered from the glass fiber industry waste enrichment of platinum and rhodium metal,X781.5
  5. Pt -based catalysts of direct methanol fuel cells,TM911.4
  6. Synthesis and Study on Graphene and Co3O4/Graphene Composite about the Characteristics of Electrochemistry,O613.71
  7. Study on Durability and Poisoning Resistant Performance of Pt/C and Pt/OMC Catalysts,O643.36
  8. Effects of in Ovo Equol Injection on Posthatch Growth and Meat Quality of Broilers and Mechanism Research,S831
  9. Study on Electrochemistry and Raman Spectrum of Picoline Electro-Oxidation Beavior in Non-aqueous System,O626.321
  10. Preparation of graphene Defects,O613.71
  11. Degradation of microcystin and Elimination Methods,X173
  12. WC / graphene composite electronic structure and electron transport properties,O613.71
  13. Nano Pt / SiC Preparation, Characterization and Electrochemical Catalytic Performance,TM911.4
  14. Low Temperature Synthesis of High-quality Graphene and Its Application in Water Pollution Treatment,X703
  15. First-Principles Study of Si/Ge Adsorption on Doping Graphene,O469
  16. Theoretical study M_x (M = Cu, Ag, Au) / graphene structure and stability,O613.71
  17. The Microwave Properties of c-axis Oriented BaFe12O19 Films Sputtered on Pt-buffered Silicon Substrates,TM277
  18. Synthesis of Ziconotide by Solid Phase Method Via Selective Oxidation,TQ463
  19. Synthesis of Macrocyclic Coordination Compound and Oxidation of Sulfides,O621.25
  20. Preparation and Properties of Reinforcements/ Polyacrylonitrile Composite Nanofibers,TB383.1
  21. The Research on Hydrogen Peroxide Sensor Based on Nanomaterials Modified Electrodes,TP212.2

CLC: > Industrial Technology > General industrial technology > Materials science and engineering > Special structural materials
© 2012 www.DissertationTopic.Net  Mobile