Interfacial dependent reactive oxygen species generation over Pt-ZrO2 nanoparticles for catalytic oxidation of formaldehyde at room temperature

Adsorption prospects of ultrafine, cubic 8 mol.% Y2O3‐stabilized ZrO2 nanoparticles

“…Noteworthy is also that ZrO 1.5 would have more oxygen vacancies than ZrO 2 . It has also been reported that Zr 3+ positively influences in the generation of oxygen vacancies 50 . Thus, the presence of ZrO 1.5 in an otherwise ZrO 2 matrix brings a possibility of a heterogeneous mixture of compounds that could originate various types of hybrid interfaces.…”

“…It has also been reported that Zr 3+ positively influences in the generation of oxygen vacancies. 50 Thus, the presence of ZrO 1.5 in an otherwise ZrO 2 matrix brings a possibility of a heterogeneous mixture of compounds that could originate various types of hybrid interfaces. Hybrid interfaces are known to play a significant role in providing interaction sites (for catalytic reactions) as well as enhancing catalytic activities.…”

“…Hybrid interfaces are known to play a significant role in providing interaction sites (for catalytic reactions) as well as enhancing catalytic activities. 50,51 According to the literature, when the surface area increases, the probability of forming F + -type centers dominates the Zr 3+ formation chances. 48 Hence, the first interpretation (involving F + -type centers) seems more realistic in our case.…”

Metal–support interactions for heterogeneous catalysis: mechanisms, characterization techniques and applications

“…2a), showing the formation of interfacedependent reactive oxygen species (O*). 25 Back in 1978, the ndings of Tauster et al implied that if TiO 2 -supported group VIII metal catalysts were applied, then the metals (e.g., Pt/TiO 2 , Pd/TiO 2 , Ru/TiO 2 , and Rh/TiO 2 ) were reduced at high temperature. Furthermore, the metals would be encapsulated by TiO 2 , thereby losing the adsorption capacity of gas molecules (such as O 2 ).…”