Science and Education Publishing Journal of Materials Physics and Chemistry 2333-4444 5 1 2017 3 31 Identification of the Features of the Unstable Flame Propagation by 4D Optical Spectroscopy and Color Speed Cinematography 11 19 EN N Rubtsov Institute of Structural Macrokinetics and Materials Science, Russian Academy of Sciences, Chernogolovka 142432, Moscow Region, Russia A Kalinin A Vinogradov A Rodionov K Troshin G Tsvetkov V Chernysh JMPC2017512 10.12691/jmpc-5-1-2 2016 10 17 2017 2 25 2017 3 29 The specific features of combustion in flame cells caused by hydrodynamic instability are experimentally established. It is shown that each flame cell represents a separate "chemical reactor", and in the cell, the process of complete chemical transformation occurs. A cellular combustion regime of 40% H2-air mixture in the presence of Pt wire within the interval 270-350 C was observed for the first time. It is shown that the regime is caused by the catalytic action of Pt containing particles formed by decomposition of volatile platinum oxide in the gas phase.