An improved cluster-supporting catalyst has heteroatom-removed zeolite particles, and catalyst metal clusters supported within the pores of the heteroatom-removed zeolite particles. A method for producing a cluster-supporting catalyst includes the following steps: providing a dispersion liquid containing a dispersion medium and the heteroatom-removed zeolite 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 within the pores of the heteroatom-removed zeolite particles through an electrostatic interaction.

This disclosure provides embodiments directed to compositions, methods, and processes to produce compounds having the structure: ##STR00001## each of R1-R5 is selected from a hydroxyl group and hydrogen; and R1-R5 include at least one hydroxyl group and at least one hydrogen; and n=0-2. In particular, methods of the disclosure can include reacting a precursor, the precursor containing more oxygen (O) atoms than the compound, with a gas containing hydrogen (H.sub.2) in the presence of a catalyst.

Shaped porous carbon products and processes for preparing these products are provided. The shaped porous carbon products can be used, for example, as catalyst supports and adsorbents. Catalyst compositions including these shaped porous carbon products, processes of preparing the catalyst compositions, and various processes of using the shaped porous carbon products and catalyst compositions are also provided.

Shaped porous carbon products and processes for preparing these products are provided. The shaped porous carbon products can be used, for example, as catalyst supports and adsorbents. Catalyst compositions including these shaped porous carbon products, processes of preparing the catalyst compositions, and various processes of using the shaped porous carbon products and catalyst compositions are also provided.

The present invention relates to a catalytically active composition for the selective methanation of carbon monoxide in reformate streams comprising hydrogen and carbon dioxide, comprising at least one element selected from the group consisting of ruthenium, rhodium, nickel and cobalt as active component and rhenium as dopant on a support material. The catalyst according to the invention is preferably used for carrying out methanation reactions in a temperature range from 100 to 300 C. for use in the production of hydrogen for fuel cell applications.

The present invention relates to a catalytically active composition for the selective methanation of carbon monoxide in reformate streams comprising hydrogen and carbon dioxide, comprising at least one element selected from the group consisting of ruthenium, rhodium, nickel and cobalt as active component and rhenium as dopant on a support material. The catalyst according to the invention is preferably used for carrying out methanation reactions in a temperature range from 100 to 300 C. for use in the production of hydrogen for fuel cell applications.

Shaped porous carbon products and processes for preparing these products are provided. The shaped porous carbon products can be used, for example, as catalyst supports and adsorbents. Catalyst compositions including these shaped porous carbon products, processes of preparing the catalyst compositions, and various processes of using the shaped porous carbon products and catalyst compositions are also provided.

Shaped porous carbon products and processes for preparing these products are provided. The shaped porous carbon products can be used, for example, as catalyst supports and adsorbents. Catalyst compositions including these shaped porous carbon products, processes of preparing the catalyst compositions, and various processes of using the shaped porous carbon products and catalyst compositions are also provided.

Methods, compositions, and articles of manufacture for alkane activation with single- or bi-metallic catalysts on crystalline mixed oxide supports.

Methods, compositions, and articles of manufacture for alkane activation with single- or bi-metallic catalysts on crystalline mixed oxide supports.