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Self-assembly of novel mesoporous manganese oxide nanostructures and their application in oxidative decomposition of formaldehyde
Monodisperse manganese oxide honeycomb and hollow nanospheres have been prepared facilely at room temperature by varying the molar ratio of KMnO4 and oleic acid. These new nanomaterials were
Synergistic reaction between SO2 and NO2 on mineral oxides: a potential formation pathway of sulfate aerosol.
The synergistic reaction between SO( 2) and NO(2) on mineral oxides resulted in the formation of internal mixtures of sulfate, nitrate, and mineral oxide and the change of mixture state will affect the physicochemical properties of atmospheric particles and therefore further influence their environmental and climate effects.
Heterogeneous reaction of acetic acid on MgO, α-Al2O3, and CaCO3 and the effect on the hygroscopic behaviour of these particles.
While coordinated surface acetate species increased the water adsorption capacity slightly, the formation of bulk acetate promoted the water absorption capacity greatly and demonstrated that heterogeneous reaction between CH(3)COOH and mineral dust is not only an important sink for CH(2)O(3), but also has a significant effect on the hygroscopic behavior of mineral dust.
Alkali-metal-promoted Pt/TiO2 opens a more efficient pathway to formaldehyde oxidation at ambient temperatures.
A novel alkali-metal-promoted Pt/TiO2 catalyst is reported for the ambient destruction of HCHO, significantly promoting the activity for the HCHO oxidation by activating H2O and catalyzing the facile reaction between surface OH and formate species to total oxidation products.
Catalytic oxidation of formaldehyde over manganese oxides with different crystal structures
α-, β-, γ- and δ-MnO2 catalysts were prepared by a hydrothermal method and tested for the catalytic oxidation of formaldehyde (HCHO) at low temperature. Dramatic differences in activities among the