Regulating the Pt-MnO Interaction and Interface for Room Temperature Formaldehyde Oxidation.

Formaldehyde (HCHO) is a hazardous pollutant in indoor space for humans because of its carcinogenicity. Removing the pollutant by MnO-based catalysts is of great interest because of their high oxidation performance at room temperature. In this work, we regulate the Pt-MnO (MnO = manganese oxide) interaction and interface by embedding Pt in MnO (Pt-in-MnO) and by dispersing Pt on MnO (Pt-on-MnO) for HCHO oxidation over Pt-MnO catalysts with trace Pt loading of 0.

Niobium Modification of Au/CeO for Enhanced Catalytic Performance over Benzene Combustion.

A novel Au/Nb-CeO was obtained by loading Au to Nb-modified CeO adopting a thermal decomposition method. The modification effect of Nb on the physicochemical properties and performance of Au/CeO for benzene combustion was systematically clarified. The incorporated Nb species are found to be present in the two forms of highly-dispersed state and bulk NbO into CeO lattice in the obtained Au/Nb-CeO catalyst.

Ultrastable Hydroxyapatite/Titanium-Dioxide-Supported Gold Nanocatalyst with Strong Metal-Support Interaction for Carbon Monoxide Oxidation.

Supported Au nanocatalysts have attracted intensive interest because of their unique catalytic properties. Their poor thermal stability, however, presents a major barrier to the practical applications. Here we report an ultrastable Au nanocatalyst by localizing the Au nanoparticles (NPs) in the interfacial regions between the TiO2 and hydroxyapatite.

A highly active and sintering-resistant Au/FeOx-hydroxyapatite catalyst for CO oxidation.

The Au/FeO(x)-hydroxyapatite composite prepared by a simple deposition-precipitation method is not only highly active and stable for CO oxidation at low temperatures, but also strongly sintering-resistant for calcination at as high as 600 °C.