1 research outputs found
Plasma Catalytic Removal of Hexanal over Co–Mn Solid Solution: Effect of Preparation Method and Synergistic Reaction of Ozone
Removal of hexanal via a post-plasma
catalysis system over a Co–Mn
solid solution at ambient temperature and pressure was investigated
in this study. Results showed that CoMnÂ(9/1) prepared by a citric
acid method exhibited the best catalytic activity, which could be
ascribed to the higher redox property. Moreover, the coprecipitation
method was applied and improved CO<sub>2</sub> selectivity significantly,
which could be due to smaller grain size, larger surface area, and
higher oxygen storage capacity. The reaction pathway and intermediates
were analyzed by in situ Fourier transfrom infrared spectroscopy.
In addition, results indicated that the removal of hexanal included
direct decomposition by plasma and further oxidation of intermediates
on the catalyst surface. Furthermore, it could be inferred that the
intermediates were further oxidized by the synergistic effect between
active oxygen species and catalyst and that the utilization of ozone
was the key point in the process