Dissertation > Excellent graduate degree dissertation topics show

Development of Sensing Material for Catalyst Combustion Type Methane Sensor

Author: YangYueHua
Tutor: ZhangTong
School: Jilin University
Course: Microelectronics and Solid State Electronics
Keywords: Contact combustion type gas sensor Template Methane Al2O3 Hydrothermal method
CLC: TP212.2
Type: Master's thesis
Year: 2010
Downloads: 85
Quote: 1
Read: Download Dissertation

Abstract


Catalytic combustion type sensors sensitive material prepared by several different methods , and its characterization and sensitivity characteristics test . Pd/Al2O3 catalyst material first prepared using traditional methods , Al2 (SO4) 3 and Na2CO3 as raw material , through precipitation method of γ-Al2O3 by vacuum distillation Pd supported on γ-Al2O3 . By examining the sintering temperature of the specific surface area of the carrier material and polymorphs , and ultimately chose the 750 ° C sintered materials . Hydrothermal ( solvothermal ) prepared Pd/Al2O3 catalyst material to Al (NO3) 3 and Pd (NO3) 2 as a raw material , the Pd/Al2O3 catalyst material was synthesized by hydrothermal reaction step , studies have shown that the type of solvent catalyst the characteristics of the material has a great influence . Finally template synthesis material of the SBA-15 , the use of a surfactant P123 ( polyoxyethylene - polyoxypropylene - polyoxyethylene) , and by the ion exchange method of Pd loaded on the SBA-15 . The catalyst prepared in a sensitive characteristic test , the first test of the loading amount of Pd on the device performance , the higher the amount of loading is possible to improve the long term stability of the device ; Hydrothermal Synthesis of a catalyst , using reductive than prepared in the strong solvent materials have a high sensitivity; using templates prepared SBA-15 material, due to large specific surface area , compared with the carrier prepared by conventional methods , with better sensitivity characteristics .

Related Dissertations

  1. Preparation of ITO Quai-1D Nanostructures by Sol-Gel Method Combined with Porous Anodic Aluminum Oxide Template,TB383.1
  2. Study on the Synthesis Bi3.25La0.75Ti3O12（BLT） Nanotubes and Nano Wires,TB383.1
  3. Hydrothermal Synthesis of Oxide Hollow Spheres,TB383.4
  4. Temporal and Spatial Variation of Methane Emission from Urban Lake and Its Relationship with the Hydrology-water Quality,X524
  5. Study of Tin Alloy Carbon Composite Used for Lithium Ion Battery,TM912.9
  6. Research on Algorithms of 2D Face Template Protection,TP391.41
  7. Research on Secure Fingerprint Authentication Based on Distance Projection Coding,TP391.4
  8. Methane and Carbon Dioxide Fluxes from Spartina Alterniflora Marsh in Minjiang River Estuary,X502
  9. Coal Bed Methane Resource Evaluation of Boli Basin,P618.13
  10. Preparation of Epichlorohydrin from Crude Glycerol of Biodiesel By-product,TQ223.26
  11. Synthesis and Characterization of Carbonate Intercalated Layered Double Hydroxides and Their Structure Recovery Properties,TQ424.2
  12. Plant-mediated Methane Transport and Methane Emissions from Phragmites Australis Marsh in Minjiang River Estuary,X502
  13. Methane Emission from Typical Plants in Mid-subtropical of China: Influencing Factors and Source of Preliminary Discussion,S718.4
  14. Incomplete information on the completeness of the system and its knowledge acquisition,TP311.13
  15. On the television program template of intellectual property protection,G222
  16. Heavy metal ions on methane -oxidizing bacteria growth characteristics of,X172
  17. Copper oxide porous hollow microspheres Preparation and Characterization,O614.121
  18. Study on Influential Factor to Methane Metabolic of Methane-utilizing Bacteria and Methoanol Detection Method,Q93
  19. Preparation of Silica Hollow Spheres with Mesopores in the Walls,TB383.1
  20. Synthesis and Characterization of Polyaniline Micro/nano Structure and Its Composites,TB383.1
  21. Drivers' eyes open or closed state of the computer image recognition technology development,TP391.41

CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation components,parts > Transmitter ( converter),the sensor > Chemical sensors
© 2012 www.DissertationTopic.Net  Mobile