This paper investigates the oxidation kinetics of carbon black on acicular mullite using thermogravimetric (TGA) and mullite microstructures by scanning electron microscopy (SEM) for the development of diesel particulate filters (DPFs). It is observed that the amount of each chemical composition strongly affects the structure of mullite. The addition of AlF₃ and V₂O₅ to mullite promotes the growth of needle-shaped mullite crystals. Thermogravimetric analysis was used to investigate and characterize chemical kinetics of soot oxidation for better understanding of designs and configurations of diesel particulate filters. The mass conversion of soot on the acicular mullite (ACM) is oxidized faster than that on the mullite (ML) membrane at all temperatures examined. The calculation of apparent activation energy (E_a) of soot oxidation with isothermal methods on mullite was presented. The results showed that activation energy of soot oxidation is enhanced with ACM than with ML at all temperatures examined. The average calculated apparent activation energy of soot oxidation on ACM and ML are 146.4 kJ/mole and 155.3 kJ/mole, respectively.

本文通过热重分析（TGA）和莫来石显微结构，通过扫描电子显微镜（SEM）研究了炭黑在针状莫来石上的氧化动力学，以开发柴油机微粒过滤器（DPF）。观察到每种化学组成的量强烈影响莫来石的结构。AlF ₃和V ₂ O _5的添加莫来石促进针状莫来石晶体的生长。热重分析用于研究和表征烟尘氧化的化学动力学，以更好地理解柴油机微粒过滤器的设计和配置。在所有检查的温度下，针状莫来石（ACM）上烟灰的质量转化速度都比莫来石（ML）膜上的烟尘氧化速度快。提出了用等温法在莫来石上烟尘氧化的表观活化能（E _a）的计算方法。结果表明，在所有检查温度下，ACM均比ML增强了烟灰氧化的活化能。计算出的ACM和ML上烟灰氧化的平均表观活化能分别为146.4 kJ /摩尔和155.3 kJ /摩尔。