A method for producing a cluster-supporting catalyst, the cluster-supporting catalyst including porous carrier particles that has acid sites, and catalyst metal clusters supported within the pores of the porous carrier particles, includes the following steps: providing a dispersion liquid containing a dispersion medium and the porous carrier particles dispersed in the dispersion medium; and in the dispersion liquid, forming catalyst metal clusters having a positive charge, and supporting the catalyst metal clusters on the acid sites within the pores of the porous carrier particles through an electrostatic interaction.

A method for producing a cluster-supporting catalyst, the cluster-supporting catalyst including porous carrier particles that has acid sites, and catalyst metal clusters supported within the pores of the porous carrier particles, includes the following steps: providing a dispersion liquid containing a dispersion medium and the porous carrier particles dispersed in the dispersion medium; and in the dispersion liquid, forming catalyst metal clusters having a positive charge, and supporting the catalyst metal clusters on the acid sites within the pores of the porous carrier particles through an electrostatic interaction.

A method for manufacturing a catalysis reactant having high efficiency catalysis for thermal reaction primarily includes: preparing a three-dimensional catalysis carrier; preparing at least one aqueous-phase nanometer metallic particle solution; soaking the catalysis carrier in a methanol solution containing a silane group compound and removing and subjecting the catalysis carrier to drying and freezing for surface modification; soaking the catalysis carrier in the aqueous-phase nanometer metallic particle solution and removing and subjecting the catalysis carrier to blow-drying to have the surface of the catalysis carrier combined with a first layer of nanometer metallic particles; soaking the catalysis carrier in a methanol solution containing 1,12-diaminododecane to carry out surface modification and removing and subjecting the catalysis carrier to drying, followed by soaking in the aqueous-phase nanometer metallic particle solution and then blow-drying to have the surface of the catalysis carrier further combined with a second layer of nanometer metallic particles.

A technique may produce a composite at a low temperature by a reducing agent that is easy to handle. A technique may produce a composite in which a metal simple substance or a metal oxide derived from reduced cations, or both of them are supported on a carrier. The technique may include at least: preparing a liquid phase mixture containing at least an alcohol compound as a first reducing agent, a phosphinic acid or a salt thereof as a second reducing agent, the carrier, and a source compound of one or more cations selected including Au, Ag, Cu, Pt, Rh, Ru, Re, Pd, and/or Ir; and reducing the cations in the liquid phase mixture.

The invention provides a process for treating waste water from an industrial process for producing propylene oxide, which process comprises subjecting the waste water to a catalytic wet oxidation treatment in the presence of a catalyst comprising metal nanoparticles-doped porous carbon beads.

Hybrid polymer-inorganic nanocolloids and methods of making them are described.

Hybrid polymer-inorganic nanocolloids and methods of making them are described.

A method and a system for producing glycolic acid and/or glycolate from sustainable resources. A method for catalytic production of glycolic acid and/or glycolate including the step of: oxidation of a starting material including between 0.1-100 wt/wt % glycolaldehyde at a temperature of between −10° C. and 100° C. with an oxidant in the presence of a metal-based catalyst including a catalytically active metal, which is selected from the group of palladium and platinum; or mixtures thereof.

A method and a system for producing glycolic acid and/or glycolate from sustainable resources. A method for catalytic production of glycolic acid and/or glycolate including the step of: oxidation of a starting material including between 0.1-100 wt/wt % glycolaldehyde at a temperature of between −10° C. and 100° C. with an oxidant in the presence of a metal-based catalyst including a catalytically active metal, which is selected from the group of palladium and platinum; or mixtures thereof.

The invention relates to a method of preparing titanium dioxide-coated nanostars. Titanium precursors are hydrolyzed into crystalline TiO.sub.2 polymorphs at low temperatures, allowing the delicate morphology of the nanostars to be preserved while maintaining their desirable photocatalytic properties.