Deep oxidation of chlorinated VOCs over CeO 2 -based transition metal mixed oxide catalysts

Synergistic performance between oxidizability and acidity/texture properties for 1,2-dichloroethane oxidation over (Ce,Cr)xO2/zeolite catalysts

“…More information was described in the Ref. Yang et al (2015a). Durability tests were carried out under different conditions, and the catalytic activities were measured similar to that mentioned above.…”

“…Although the impregnation of transition metal oxides or noble metals is always considered, the synergy between oxides/noble metals and zeolites can hardly reach the best, and thus, the similar problems still exist (Guisnet et al, 2009;Aranzabal et al, 2009;López-Fonseca et al, 2005;Gutiérrez-Ortiz et al, 2003;Chatterjee et al, 1992). CeO 2 -based catalysts, especially CeO 2 -transition metal mixed oxides, have also attracted considerable interest (Harmsen et al, 2001;Wang et al, 2009;de Rivas et al, 2011de Rivas et al, , 2012Yang et al, 2015aYang et al, , 2014Yang et al, , 2015b, since CeO 2 can undergo a rapid and reversible redox cycle of Ce 4 þ '-Ce 3 þ , coupled with its strong interaction with other active metal, which is helpful to stabilize the active components and improve the redox property. Among the CeO 2 -based catalysts, (Ce,Cr) x O 2 mixed oxide exhibits outstanding catalytic performances for deep oxidation of Cl-VOCs with quite different molecule structures, because of its very high oxidizing ability.…”

Combined promoting effects of low-Pd-containing and Cu-doped LaCoO3 perovskite supported on cordierite for the catalytic combustion of benzene

“…Among the many available technologies to control VOCs, the catalytic oxidation of these compounds to CO 2 and H 2 O has been recognized as one of the most promising methods because of the lower NO x , CO, and unburned-hydrocarbon emissions and the higher energy efficiency (Yang et al 2015;Li et al 2004;Castaño et al 2015). The development of efficient catalysts to completely oxidize VOCs is desirable from the environment protection viewpoint.…”

Coupling Noble Metals and Carbon Supports in the Development of Combustion Catalysts for the Abatement of BTX Compounds in Air Streams

“…Toluene was the least VOCs oxidized, due to the decrease of the oxygen mobility and consequently slow incorporation rate of lattice oxygen. On the other hand, ceria (CeO2) is the ideal support in terms of outstanding oxygen storage capacity and hence, it is commonly employed as a structural and electronic promoter in catalysis [2], because oxygen molecules can be easily transferred to the CeO2 surface through a reversible redox process between Ce 4+ and Ce 3+ [12]. Ordered mesoporous CrO3 was very active for toluene oxidation [13], but its high toxicity causes serious concerns.…”