Presentation Information
[1B06]Role of Ag additives on the catalytic decomposition of N2O over RhOx/Al2O3 catalyst
○Yuan Jing1, Chenxi He2, Ningqiang Zhang2, Yu Murano3, Ryo Toyoshima3, Hiroshi Kondoh3, Yuuta Kageyama4, Hironori Inomata4, Takashi Toyao2, Ken-ichi Shimizu2 (1. Institute of Science Tokyo, 2. Hokkaido University, 3. Keio University, 4. Isuzu Motors, Ltd)
Keywords:
N2O decomposition,in situ UV-vis spectroscopy,AP-XPS
Catalytic decomposition of N2O into N2 and O2 is one of the most important techniques for removing N2O from the atmosphere to curb global warming. In this study, the addition of Ag was found to enhance the efficiency of a RhOx/Al2O3 catalyst for N2O decomposition. The promotional effect of Ag was investigated using various spectroscopic methods, including XAS, UV-vis, AP-XPS, and kinetic studies. The results demonstrated that the addition of Ag enhanced the catalytic efficiency of the supported RhOx catalysts by enhancing the thermal reduction of Rh oxide, which was identified as the rate-determining step.