US 12,403,456 B1
Non-noble CuO-CeO2/Nb2O5 catalysts for low-temperature oxidation of carbon monoxide
Mirza Belal Beg, Al Ain (AE); Labeeb Ali, Al Ain (AE); and Mohammednoor Al Tarawneh, Al Ain (AE)
Assigned to UNITED ARAB EMIRATES UNIVERSITY, Al-Ain (AE)
Filed by United Arab Emirates University, Al Ain (AE)
Filed on Jul. 11, 2024, as Appl. No. 18/770,008.
Int. Cl. C01B 32/50 (2017.01); B01J 23/20 (2006.01); B01J 23/847 (2006.01); B01J 37/02 (2006.01); B01J 37/04 (2006.01); B01J 37/08 (2006.01)
CPC B01J 23/8474 (2013.01) [B01J 23/20 (2013.01); B01J 37/0201 (2013.01); B01J 37/0236 (2013.01); B01J 37/04 (2013.01); B01J 37/08 (2013.01); C01B 32/50 (2017.08)] 8 Claims
OG exemplary drawing
 
1. A method for catalytic oxidation of carbon monoxide (CO) to carbon dioxide (CO2), comprising:
providing a non-noble catalyst, designated as 10CuCeNb, composed of 10 weight % of Copper oxide (CuO)-Cerium oxide (CeO2) precursors, supported on Niobium oxide (Nb2O5);
calcining the non-noble catalyst 10 CuCeNb in the presence of a flow of 50 ml/min of zero air to remove impurities and covert the precursors into their oxide forms
exposing a CO containing gas stream to the calcined non-noble catalyst 10 CuCeNb composition at a temperature as low as 150° C.; and
oxidizing the CO to CO2,
wherein the catalyst exhibits enhanced activity due to synergistic interaction between the Copper oxide (CuO)-Cerium oxide (CeO2) i.e., CuO-doped CeO2 and the Nb2O5, and achieves complete CO oxidation at a temperature of 150° C.