Enhancement of NO$_{\mathrm{x}}$ and hydrocarbon conversion in plasma-activated catalysis

Atmospheric pressure, non-thermal plasma-activated-catalysis is showing real promise in a number of applications. Here we report on how electrical, visible and FTIR spectroscopy and mass spectroscopy measurements in a kHz atmospheric pressure He plasma jet coupled with a Ag/Al$_{\mathrm{2}}$O$_{\mathrm{3\thinspace }}$catalyst allowed us produce and confirm a strong enhancement of both NO$_{\mathrm{x}}$ and hydrocarbon conversion at a measured gas temperature of $\le $250 \textdegree C [1]. How these and other measurements have provided an insight into the fundamental physical and chemical processes in the plasma environment that have helped us move to a more efficient system and other processes will be discussed. [1] Stere C E,~Adress W,~Burch R,~Chansai S,~Goguet A,~Graham W G,~De Rosa F,~Palma V and Hardacre, C. ACS Catalysis \textbf{4} (2014) 666-673