Effect of doping copper on K-OMS-2 over soot oxidation activity. (2023)

• Record Type: Journal Article
• Authors: Nithya, R.; Dasari, Harshini; Nethaji, S.; Sriram, S.; Vikram, A.L.; Murari, M.S.
• Is Part Of: Materials today. Volume 80:Part 2(2023)
• Page Start: 1130
• Page End: 1134
• Publication Date: 2023
• Subjects: K-OMS-2 -- Soot Oxidation -- Copper doping -- Active Oxygen radicals -- Hydrothermal method -- Calcination Temperature; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2022.12.120
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: The hydrothermal approach was used to develop a sequence of copper-doped KOMS2, which was applied for soot oxidation. XRD pattern showed the tetragonal phase of KOMS2 and copper-doped KOMS2.SEM analysis showed all samples showed rod-like structures. Soot TPR results revealed the copper doped KOMS2 had bulk oxygen radicals along with surface adsorbed and lattice oxygen radicals. Compared to copper-doped KOMS2 samples, KOMS2 possessed the most surface-adsorbed oxygen radicals. Using the TGA instrument, the performance of KOMS2 and copper-doped samples for soot oxidation activity was studied. KOMS2 exhibited the best soot oxidation activity with T50% of 395 °C.