TiO2 NTS-SUPPORTED COPPER OXIDE WITH IMPROVED CATALYTIC PERFORMANCE FOR LOW-TEMPERATURE CO OXIDATION VIA CERIUM OXIDE MODIFICATION

SONG JUAN-JUAN, ZHU BAO-LIN, HAN QI-WEI, TIAN JING, ZHAO WEI-LING, WANG SHU-RONG, ZHANG SHOU-MIN, HUANG WEI-PING
2013 Journal of the Chilean Chemical Society (Print)  
High catalytic activity for CO oxidation can be obtained on TiO 2 nanotubes (NTs) -supported copper oxide (CuO/TiO 2 NTs). But the relatively low thermal stability limits its practical application. Via cerium oxide modification, catalysts with enhanced catalytic activity and higher thermal stability can be obtained. The prepared materials are characterized with X-ray diffraction (XRD), transmission electron microscopy (TEM), and temperature-programmed reduction (TPR). Catalytic performance for
more » ... ic performance for low-temperature CO oxidation is studied by using a microreactor-GC system. Obtained results indicate that CuO/TiO 2 NTs exhibit higher thermal stability and higher catalytic activity for CO oxidation after cerium oxide is added.
doi:10.4067/s0717-97072013000100027 fatcat:jjen4wkrobg3hehuy6daiswpvy