Abstract

CeO 2 modified ultrastable Y zeolite (CeO 2–USY) catalysts were prepared and were used as the catalysts for the decomposition of 1,2-dichloroethane (DCE). The catalytic behavior of these catalysts was evaluated by micro-reaction and temperature-programmed surface reaction (TPSR) technique. The results reveal that CeO 2–USY catalysts exhibit good catalytic activity for DCE decomposition and high selectivity to the formation of CO 2 and HCl. Both acidity and redox property play important roles in the DCE decomposition, and the synergy between CeO 2 species and USY zeolite shows an enhancement in the catalytic activity for DCE decomposition. CeO 2–USY (1:8) with high dispersion of CeO 2 species and a much more suitable combination of acidity and redox property exhibits the best catalytic activity.

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