Dissertation > Excellent graduate degree dissertation topics show

Perovskite catalysts in diesel exhaust Purification

Author: LiYong
Tutor: HanZuo
School: Jilin University
Course: Applied Physics
Keywords: Exhaust Soot Perovskite Catalytic conversion Temperature program
CLC: X701
Type: Master's thesis
Year: 2011
Downloads: 124
Quote: 0
Read: Download Dissertation

Abstract


Automobile exhaust composition contains various greenhouse gases , and a variety of toxic gases , such as: hydrocarbons (HC), nitrogen oxides (NOx) and soot (PM) is one of the main sources . PM is the main component of which is carbon , but because of the above adsorption of soluble organics, heavy metals and a variety of carcinogens , so after inhalation serious health risk . This article is mainly engaged in diesel exhaust catalytic conversion of the PM . Currently the best exhaust catalytic effect of platinum , rhodium, palladium and other precious metal catalysts. However , precious metals are expensive. Therefore , the development of high catalytic activity of the non- noble metal oxide substituted significant. This article was prepared nanoscale catalysts LaMnO3 perovskite structure was investigated with low valence element partially replace La element on the catalyst performance. By XRD, SEM, BET , etc. The samples were characterized. Through the process temperature oxidation (TPO) catalytic activity of the catalysts were tested. Test results show that the structure of the PM oxidation catalyst is preferably activated , the incorporation of doping elements can improve the catalytic activity. PM prepared samples can be reduced ignition temperature about 150 ℃ .

Related Dissertations

  1. Study of Method and Facilities for Transfering from Hot Air to Exhaust Air Converying System,TK223.25
  2. Generalized Multi-Flux Method for Simulating Directional Radiative Transfer in Participating Media,TK124
  3. Preparation and Photocatalytic Properties of Semiconductor Oxides,O643.36
  4. Synthesis, Conducting Properties and Application of Bax Ce0.8Y0.2O3-α + yZnO,TQ174.1
  5. (Class ) perovskite -type oxides catalytic elimination of N 2 O,X701
  6. Preparation and Properties of Filtering Ceramics for High Temperature Exhaust Gas,TQ174.6
  7. Modified LaMnO 3 perovskites for catalytic combustion of low concentration methane,O643.36
  8. Research and Implementation of the argon- oxygen refining ferroalloys manganese , phosphorus -line detection system,TF068.2
  9. CaTiO_3-NdAlO_3 Preparation and microwave dielectric properties of ceramics,TQ174.6
  10. Study on the NOx Storage and Sulfur Resistance of the Rare-Earth Containing La0.7Sr0.3Co1-xFexO3 Perovskite-type NOx Traps,O643.36
  11. Preparation and Properties of Li+ Doped KNN and Ba2+ Doped BNT Composite Ceramics,TM282
  12. Analysis and Simulation of Piston-exhausting Air-powered Engine,TK402
  13. 4100QB engine exhaust muffler system match analysis and experimental study of the acoustic characteristics of,U464.134.4
  14. Synthesis and Characterization of Double Perovskite La-K-Fe-Mo-O Series Compound by Sol-Gel Method,O614.331
  15. Study on Produce of TiCl4 from Modified Titanium Bearing Blast Furnace Iron Slag by Low-temperature Chlorination Method,O614.411
  16. Vibration Analysis of Exhaust System and Its Optimization,U464.134.4
  17. The Gaint Magnetoimpedance of Rare Earth Perokskite Manganites,O614.33
  18. Synthesis, Characterization and Property Study of Pervoskite Oxides,O614.411
  19. Perovskite and spinel ferrite magnetic and removal of organic dyes,X788
  20. Perovskite La_ (1-x) K_xMnO_3 and La_ (1-x) Na_xMnO_3 metal oxides and properties of the architecture,O614
  21. Double perovskite LaAFeMoO_6 Preparation and Characterization of compounds (A = alkali metal ),O614.331

CLC: > Environmental science, safety science > Processing and comprehensive utilization of waste > General issues > Exhaust gas processing and utilization
© 2012 www.DissertationTopic.Net  Mobile