Dissertation > Excellent graduate degree dissertation topics show

Preparation and Application of Functional Ordered Mesoporous Carbon

Author: LiuNingNing
Tutor: YinLongWei
School: Shandong University
Course: Materials Science
Keywords: Mesoporous Carbon Functionalized Doping Adsorption Hydrogen Storage
CLC: TB383.4
Type: Master's thesis
Year: 2011
Downloads: 166
Quote: 0
Read: Download Dissertation

Abstract


Ordered mesoporous carbon (OMC) as a new class of porous material, due to its having a high specific surface area and pore volume, a uniform pore size distribution, excellent hydrothermal stability and conductivity, and other advantages, have been widely used in catalytic adsorption, electrochemical energy storage and biological fields. Doping and metal particles by heterogeneous elements mesoporous carbon material load function processing has important research value and application prospects for the improvement of its performance. The OMC matrix composites involving macromolecular adsorption and electrochemical hydrogen storage properties, in the material component design, preparation, performance and theory of mechanism-depth research. The main contents are as follows: 1. Synthesized by hydrothermal method with a high nitrogen content and the structure of adjustable nitrogen-doped mesoporous carbon (MCN) material. Phenylenediamine (DAB) and ammonium persulfate (APDS) SBA-15 as a template, as a nitrogen source and a carbon source, is obtained by changing the reaction temperature and the proportion of the precursor having a different surface area, pore volume and pore MCN materials. 70-100 ℃ reaction temperature condition, the aperture of the sample under the MCN adjustable between 3.43 to 4.15nm, while the basic nitrogen content of the samples did not change much in 26.5wt.%. Under 80 ° C temperature condition of, by adjusting the molar ratio of DAB and APDS, the same can be adjusted MCN structural dimensions of the material, the more important is the molar ratio, C / N of the material, 3.25-3.65 Q adjustable. The following conclusions can be drawn: a molar ratio of 80 ℃ as the reaction conditions, DAB / APDS maintained at 1.5, and can be highly ordered and MCN material of high nitrogen content (26.42wt.%). 2 through the two-step method, the material of the composite structure of the magnetic adsorption. Substrate to OMC, Ni (CH3COO) 2.4 H2O nickel source, synthesized by high temperature calcination reduction approach, the different structures of the magnetic the Ni particles uniformly load Ni-OMCs complexes and the Ni particles of controlled size less than 10nm. System to study the adsorption time, adsorption temperature, adsorbent concentration, as well as factors such as the concentration of the adsorbate on the adsorption of methyl orange properties of Ni-OMCs. The results showed that all adsorption the Langmuir adsorption model the Ni-OMCs material adsorption properties of methyl orange is about three times that of activated carbon powder. The saturation magnetic flux of the magnetic Ni-OMCs about 2.34 emu / g, can easily be applied magnetic field separation. 3 by the two-step method PtRu nanoparticles doped OMC electrochemical hydrogen storage materials. OMC for matrix RuCl3 · xH2O and H2PtCl6 · 6H2O the staple source and the source of platinum, and ethylene glycol as a reducing agent, synthetic composites of the the PtRu nanoparticles doped OMC. The PtRu nano-particle size of about 3.6 nm, uniform load inside the OMC surface of mesopores. By cyclic voltammetry curves and constant current charge and discharge curves of the OMC / the PtRu, the OMC / Pt and OMC electrode electrochemical hydrogen storage performance, studies have shown that the OMC / PtRu electrodes largest hydrogen storage capacity of 411.8 mAh / g, is pure OMC 2.3 times of the discharge capacity of the electrode, the OMC / Pt electrode, the discharge capacity of 1.5 times.

Related Dissertations

  1. Density Functional Theory Study of Dimethyl Ether Adsorption on the Low-Index Pt Surface,O485
  2. Preparation and Photocatalytic Properties for Water Decomposition of Titanate Photocatalyst,O643.36
  3. Preparation of Based on the Phenolic Resin of Activated Carbon and Adsorption-Photopcatalytical Character of Supported TiO2,TQ424.19
  4. Competitive Adsorption of Phenolic/Ethanol onto Silica Fiber Effected by Ultrasound in RTM Process,TB332
  5. Studies on Synthesis, Characterization and Properties of Fe-V Co-doped TiO2 Catalyst,O614.411
  6. Establishment of ELISA for Detecting Cd-MT of Pteria Penguin and Preliminary Study of ELISA-kit,X835
  7. Numerical Study on Phosphorus Distribution in Water Environment of the Three Gorges Reservoir,X832
  8. The Study of Preparation and Photocatalytic Activity of TiO2 by Electrospinning,O614.411
  9. Study and Preparation of BaTiO3-based NTC Ceramic Thermistors,TQ174.1
  10. First- principles calculations of doped anatase titanium dioxide photocatalytic properties,O643.36
  11. Study on Durability and Poisoning Resistant Performance of Pt/C and Pt/OMC Catalysts,O643.36
  12. Preparation of One-dimensional Nano TiO2 and Study on the Decolorization of Dyeing Wastewater,TB383.1
  13. The Research of Fast Integrated Physicochemical Technology for Emergent Treatment of Organic Contamination Accidents,X703
  14. First-Principles Studies of Cathode Material LiMO2 （M=Co, Ni, Mn） of Lithium Ion Batteries,TM912
  15. Iron, lanthanum -doped nano TiO \u003csub\u003e 2 \u003c/ sub\u003e Preparation and photocatalytic properties,O614.411
  16. Based magnetic fluid assembled hollow magnetic carbon microspheres and functional complexes,TB383.4
  17. Influence of Doping Effect on Zinc Oxide by First Principles Studies,O614.241
  18. Study on Microstructure and Superconducting Properties of MgB2 Wires Fabricated by Two-Step PIT,TM26
  19. The Application of Ordered Mesoporous Carbon and Glod Nanoparticles Composite in Bioensor,TB383.1
  20. Synthesis, Characterizations and Catalysis of Mesoporous Carbon Material Supported Metal Catalysts,O643.36
  21. Magnetocaloric Effect in Pure and Doped Magnetic Relaxor Ferroelectrics CdCr2S4,O482.5

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