Browse Publications Technical Papers 2019-01-1407
2019-03-25

Impact of TiO 2 and V 2 O 5 on Sintered Mullite Porous Microstructure and Soot Oxidation Kinetics Using SEM and TGA 2019-01-1407

The exhaust emissions from diesel combustion are the sources of particulate matter emitted to the atmosphere, which are components of air pollution that implicated in human health such as lung cancer. At present the diesel particulate filter can remove PM from the exhaust gas before emitted to the atmosphere. This research is investigating morphology and structure of acicular mullite to develop the fabrication process filter in order to study particulate matters trapping and oxidation mechanisms.
This paper used two main substances to study the structure of diesel particulate filter (DPFs); Aluminum oxide (Al2O3) and Silicon dioxide (SiO2). These are mainly in the conventional DPFs. The variable substances are Titanium dioxide (TiO2) and Vanadium oxide (V2O5), which added to investigate and produce the acicular mullite DPFs structure. The mullite samples were sintered at 1300 oC with holding time of 1 h. Moreover, a constant amount of carbon black (CB) were used to open the porosity of mullite DPFs. The images of mullite porous microstructure surface were practically investigated using Scanning Electron Microscopy (SEM). The image processing of two-color image was done by using Image J processing program to obtain pore size distribution. In addition, the oxidation kinetics behavior of soot was investigated by using isothermal Thermo-gravimetric analysis (TGA) method.
The results of this paper provided useful information about impact of Titanium dioxide (TiO2) and Vanadium oxide (V2O5) on mullite DPFs. Therefore, the results can be used for the DPFs development of advanced academic and the practical in industry.

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