Abstract
Palladium supported on γ-Al2O3 has been demonstrated as most active catalyst for catalytic combustion of methane. However, the sintering of support and PdO seriously affects its activity. We prepared a composite Pd/hexaaluminate/Al2O3 catalyst and compared its catalytic activity as well as sintering behavior with Pd/Al2O3. This composite catalyst exhibits higher activity and better resistance to sintering. The effect of water vapor presented in feed has also been investigated.
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