Steven Angel doctoral student at Faculty of Engineering (Universität Duisburg-Essen) under the supervision of Prof. C. Schulz successfully defended his thesis (Spray-flame synthesis of La(Fe, Co, Mn)O₃ perovskite nanoparticles for CO oxidation) in October, 2021. Steven, like some other students before, had to defend his dissertation via video chat due to the current situation. We congratulate Steven on his success.