Influence of Pt dispersibility and chemical states on catalytic performance of Pt/CeO2-TiO2 catalysts for VOCs low-temperature removal

Synergistic Effect of ZSM-5 Zeolite in Pt–CeO2–TiO2/ZSM-5 Catalysts for Highly Efficient Catalytic Oxidation of VOCs

“…After peak fitting and quantitative analysis, Figure 10(B) exhibits that the number of strong acid sites and total acid sites of the Pt−CeTi/ZSM-5 catalysts apparently reduce when the CeO 2 −TiO 2 /ZSM-5 mass ratio generally increases, which may be connected to the reducing amount of the ZSM-5 zeolite and the coverage of Bronsted acid sites by the CeO 2 −TiO 2 mixed oxides. 26 According to the reported literature, 28,53 the surface acid sites are very important for the DCE oxidation. The DCE molecules first absorb on the acid sites and then dehydrochlorinate.…”

TiO2-based catalytic systems for the treatment of airborne aromatic hydrocarbons

“…Several controllable strategies have been developed and employed for the abatement of aromatic VOCs, including incineration, 10 condensation, 11,12 membrane separation, 13 catalytic oxidation, 3,[14][15][16] and adsorption. 17,18 Among these technical options, catalytic oxidation processes (e.g., photo or thermal) are leading potential approaches for the destruction and/or oxidation of gaseous BTX without causing secondary pollution if the reaction proceeds for complete mineralization.…”

“…Several controllable strategies have been developed and employed for the abatement of aromatic VOCs, including incineration, 10 condensation, 11,12 membrane separation, 13 catalytic oxidation, 3,14–16 and adsorption. 17,18 Among these technical options, catalytic oxidation processes ( e.g.…”

Size Effect of Platinum Nanoparticles over Platinum–Manganese Oxide on the Low-Temperature Oxidation of Toluene

“…Among various catalysts, Pt-based catalysts have been widely used in laboratory research and various complex working conditions due to their excellent catalytic activity and stability. , However, in view of the high cost and limited reserves of precious metals, how to construct a highly efficient Pt-based catalyst at a low noble loading has been a hot topic in VOC oxidation. , Various approaches have been developed for the precise structural regulation of Pt-based catalysts such as Pt particle size, surface valence state, and the strength of the interaction between Pt and support. − Among them, the size effect of Pt has always been an important topic, which has been shown to significantly affect the catalytic activity. − Peng et al used the Pt/CeO 2 as a model catalyst and investigated the size effect of Pt nanoparticles for toluene oxidation. They found that the catalyst Pt/CeO 2 -1.8 showed the best performance owing to the equilibrium between the concentration of oxygen vacancy on CeO 2 and the dispersion of Pt.…”