In situ fabrication of Au-CoFe 2 O 4 : an efficient catalyst for soot oxidation

摘要: Diesel soot particulate is one of the main sources air pollution, which should be eliminated effectively to minimize carcinogenic and lethal effect air. Herein, an effort has been made synthesize Au–CoFe2O4 nanocomposite by a facile route use as effective catalyst for oxidation. The physicochemical properties were carried out through SEM, EDX mapping, HRTEM, XRD, XPS, hydrogen temperature-programmed reduction (H2-TPR), NO oxidation (NO-TPO). showed remarkable catalytic property in both NO + O2 O2 owing formation oxygenated species that enhanced oxidizing catalyst. CoFe2O4 composite stable oxidation, low T50 (50% conversion) 411 °C value achieved presence O2. While we introduced gold (Au) form then its performance was found tremendously increased 341 °C surface-oxygenated surface. durability including reusability, this even better activity after sulfur hydrothermal aging. Owing tremendous activity, can used environmentally friendly efficient oxidizer removal soot.