Provided is a method of manufacturing a supported catalyst and a supported catalyst manufactured using the same. The method may prevent the growth of catalytic metal particles by repeatedly applying heat, so the method is simpler and more economical than conventional processes. Moreover, since the support in the supported catalyst thus manufactured includes a hollow having a predetermined size, an electrode manufactured using the supported catalyst may ensure a desired electrode thickness even when used in a relatively small amount compared to the conventional technology. Moreover, water generated during operation of a fuel cell can be efficiently discharged, so desired mass transfer resistance can be exhibited, and a high electrochemically active surface area (ECSA) and superior catalytic activity can be attained.

A catalyst for production of carboxylic acid ester, containing: catalyst metal particles; and a support supporting the catalyst metal particles, wherein the catalyst has a hollow particle ratio of 40% or less.

The invention discloses a catalyst for removing volatile organic compounds and a preparation method therefor. In the catalyst, aluminum oxide modified by iron, cobalt and nickel is used as a carrier, cordierite honeycomb ceramic is used as a matrix, and an extremely low content of a mixture of platinum and palladium is used as an active component; a molar ratio of platinum to palladium is 0-1:0-9, and an amount of the mixture of platinum and palladium accounts for 0.01% to 0.05% of a mass of the matrix; and an amount of the carrier accounts for 3% to 5% of the mass of the matrix.

The present disclosure relates to a multi-sandwich composite catalyst and a preparation method and application thereof. The present disclosure provides a preparation method of a multi-sandwich composite catalyst, comprises the following steps: sequentially depositing a first layer oxide, a first active metal, an oxide interlayer, a second active metal and a surface oxide on a template, and sequentially performing calcination and reduction, thereby obtaining a multi-sandwich composite catalyst; wherein the first active metal and the second active metal are different kinds of active metals. In the present disclosure, a multi-sandwich structure is formed by depositing the oxides and active metals alternately, so that the position and spacing distance of the active centers can be precisely controlled. The multi-sandwich composite catalyst prepared by the method provided described herein has a higher conversion than that of a catalyst without an interlayer when used for the catalytic reaction.

There is provided a catalyst composition including a hydrogen oxidation catalyst and an oxygen reduction catalyst. Heat exchange reactors including the catalyst are also provided. The catalyst is adapted for low temperature activation of a hydrogen combustion reaction.

Methods and systems for converting methane to syngas are provided. Certain exemplary methods and systems involve reacting methane and carbon dioxide with a nickel oxide catalyst in a reaction chamber, thereby providing syngas and a reduced nickel species. The reduced nickel species can be regenerated by oxidation with air in a regeneration chamber, thereby generating a regenerated nickel oxide and heat. The regenerated nickel oxide and heat can be returned to the reaction chamber to drive the syngas reaction.

The nitride semiconductor photocatalytic thin film of the present embodiment is a nitride semiconductor photocatalytic thin film that exhibits a catalytic function to cause a redox reaction by light irradiation. The nitride semiconductor photocatalytic thin film includes: a conductive substrate; a semiconductor thin film disposed on a surface of the conductive substrate; a first catalyst layer that forms an ohmic junction on a portion of a surface of the semiconductor thin film; a second catalyst layer that forms a Schottky junction on a portion of the surface of the semiconductor thin film, and a protective layer disposed to cover a back surface of the conductive substrate and side surfaces of the conductive substrate and the semiconductor thin film. The substrate and the semiconductor thin film include a same element and have a same crystal structure.

Ethylene glycol is prepared from a carbohydrate source in a process,

wherein hydrogen, the carbohydrate source, a liquid diluent and a catalyst system are introduced as reactants into a reaction zone;

wherein the catalyst system comprises a tungsten compound and ruthenium as hydrogenolysis metal and further at least one promoter metal, selected from transition and post-transition metals;

wherein the carbohydrate source is reacted with hydrogen in the presence of the catalyst system to yield a product mixture comprising ethylene glycol and butylene glycol.

Butylene glycol may selectively be removed from the product mixture by azeotropic distillation using an entraining agent.

Disclosed is a supported nanoparticle catalyst, methods of making the supported nanoparticle 5 catalysts and uses thereof. The supported nanoparticle catalyst includes catalytic metals M1, M2, M3, and a support material. M1 and M2 are different and are each selected from nickel (Ni), cobalt (Co), manganese (Mn), iron (Fe), copper (Cu) or zinc (Zn), wherein M1 and M2 are dispersed in the support material. M3 is a noble metal deposited on the surface of the nanoparticle catalyst and/or dispersed in the support material. The nanoparticle catalyst is 10 capable of producing hydrogen (H2) and carbon monoxide (CO) from methane (CH4) and carbon dioxide (CO2).

A method for synthesis of PtNi smooth surface core/shell particles or Nano cages and porous nanocages from segregated nanoparticles.