Dissertation > Excellent graduate degree dissertation topics show

Synthesis, Crystal Structure and Property Studying of Oxovanadium Inorganic-Organic Hybrid Materials

Author: BaiHaiDan
Tutor: LiZengHe
School: Beijing University of Chemical Technology
Course: Applied Chemistry
Keywords: Inorganic - organic hybrid materials Crystal structure Solvothermal Thermal gravimetric analysis Diffuse reflectance spectra
CLC: TB34
Type: Master's thesis
Year: 2005
Downloads: 148
Quote: 0
Read: Download Dissertation

Abstract


Vanadium oxide inorganic - organic hybrid materials as polyoxometalate inorganic - organic hybrid materials is an important branch , due to its rich structural chemistry and its application in the field of catalysis and materials more and more attention of potential applications . This topic includes three aspects: First, inorganic - organic hybrid compounds synthesized by molecular design, using solvothermal method to Fe (Ⅱ), Co (Ⅱ), Cu (Ⅰ), Cu (Ⅱ), Ni (Ⅱ), Ag (Ⅰ), Mn (Ⅱ), Zr (Ⅳ) as the central ion , with 5 - formaldehyde -8 hydroxyquinoline, 4,4 - bipyridine, pyrazine , 1,2 two pyridyl ethane as ligands to partial vanadate (VO3 - ) as ancillary ligands were synthesized vanadyl inorganic - organic hybrid materials [Co (C 4 H < sub> 4 N 2 ) (VO 3 ) 2] n . Second is the synthesis of inorganic - organic hybrid compound [Co (C 4 H 4 N 2 ) (VO 3 < / sub>) 2 ] n for the structural characterization and performance studies to determine the crystal belongs to orthorhombic, space group Pnna, lattice parameters a = 10.188 (2 ) (?), α = 90 °, b = 11.497 (2) (?), β = 90 °, c = 7.3975 (15) (?), γ = 90 °. Crystal structure can be viewed as a positive ion coordination polymer chain {Co (C 4 H 4 N 2 )} n < / sub> 2n and {VO 3 } - through VO-Co bond bridged covalent building into a three-dimensional skeleton structure , we can see for a double by inorganic metal oxide layer [Co (VO 3 ) 2 ] n and organic ligands bridge C 4 H 4 N 2 through the Co-N coordination bond bridge formation . Through the main factors affecting the synthesis study to determine the optimal synthesis of the crystal temperature is 140 ℃, optimum pH of 6 . TG analysis shows that when the temperature is below 410 ℃ , the crystal has good thermal stability. Diffuse reflectance spectroscopy studies have shown that the optical energy gap of the crystal 2.13eV, is a semiconductor . Third study various experimental conditions ( such as

Related Dissertations

  1. Urothermal Synthesis, Structure and Characterization of Functional Coordination Polymers,O631.3
  2. Of Bi N Co-doped TiO \u003csub\u003e 2 \u003c/ sub\u003e of the preparation and performance,O614.411
  3. More than enough calcium and magnesium metal ligand complexes Synthesis, Structural Characterization and Antibacterial Activity,O641.4
  4. Syntheses, Structures and Properties of Metal-organic Coordination Polymers Based on Long-Chain Aromaticmulticarboxylate,O631.3
  5. Synthesis, Conformation and Character of W/Cu/S Supermolecule Clusters Containing Tp~* Group,O611.4
  6. Construction, Characterization and Properties of Tp~*-Containing W/S/Cu Clusters,O611.4
  7. Fabrications and Applications of Microelectrode Array of Silicon Dioxide Cavities and Magnetic Ferroferric Oxide Nano-Bioconjunctions,TB383.1
  8. Visible oxide catalyst with high activity and mechanism of Design and Synthesis,O643.36
  9. Preparation and Characterization of Doped Cu3N Thin Films by Magnetron Sputtering,O484.1
  10. Research on Element Analysis of Steel by Laser Induced Breakdown Spectroscopy Technology,TG115.33
  11. The Type of Polyacid of Organic-Inorganic Hybrid Materials: Synthesis, Characterization and Properties,TB34
  12. Synthesis, Structures and Properties of Transition Metal Multinucleal Complexes with Pyridine-2,3,5,6-tetracarboxylic Acid,O626.32
  13. The Research of the Synthesis of Ferroceneyl Deriveatives by Suzuki-Miyaura Reaction and the Synthesis of 1, 3, 4-Oxadiazoline,O626
  14. Studies on the Synthesis, Crystal Structure, Biological Activity of First-Row Transition Metal Complexes with 3, 5-Dichlorosalicylaldehyde Acylhydrazone,O641.4
  15. Research on High-Temperature Pyrolysis of Biomass-Tar Using Experiment,TK6
  16. Synthesis, Characterization and Properties of Transition Metals with Acetone Salicyloylhydrazone,O641.4
  17. The Synthesis, Structure Research of Scorpionlike Dis-pyrazoly-Pyridine and Its Coordination Complexes,O621.13
  18. Synthesis and Characterization of Terephthalic Acid Coordination Polymers,O634
  19. Benzene and azobenzene pyrimidine carboxylic acid coordination polymer synthesis and characterization,O634
  20. Synthesis, Structure Characterization and Biological Activity of Benzimidazoles Derivatives,O626
  21. Rigid / just mixed rare earth coordination polycarboxylic acid polymer synthesis , structure and fluorescence characteristics,O634

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