Toyota Jidosha Kabushiki Kaisha

Genesis Research Institute, Incorporated

Namiki Toyama

Toshiaki Tanaka

Seitoku Ito

Yoshihiro Takeda

Kazuhiro Egashira

Masahiko Ichihashi

A cluster-supporting catalyst including porous carrier particles having acid sites, and catalyst metal clusters supported within the pores of the porous carrier particles. The catalyst metal clusters are obtained by supporting catalyst metal clusters having a positive charge, which is formed in a dispersion liquid containing a dispersion medium and the porous carrier particles dispersed in the dispersion medium, on the acid sites within the pores of the porous carrier particles through an electrostatic interaction.

Cluster supported catalyst and production method therefor

A cluster-supporting catalyst including porous carrier particles having acid sites, and catalyst metal clusters supported within the pores of the porous carrier particles. In the cluster-supporting catalyst including porous carrier particles having acid sites, and catalyst metal clusters supported within the pores of the porous carrier particles, the catalyst metal may be rhodium, the catalyst metal may be palladium, the catalyst metal may be platinum, or the catalyst metal may be copper.

There is provided a cluster-supporting porous carrier having improved heat resistance and/or catalytic activity, and a method for producing it. The cluster-supporting porous carrier of the invention has porous carrier particles () such as zeolite particles, and metal oxide clusters () supported within the pores of the porous carrier particles. The method of the invention for producing the cluster-supporting porous carrier includes providing a dispersion containing a dispersing medium () and porous carrier particles dispersed in the dispersing medium, forming positively charged metal oxide clusters () in the dispersion, and supporting the metal oxide clusters within the pores of the porous carrier particles () by electrostatic interaction.

Cluster-supporting porous carrier and method for producing same

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.

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.

Cluster supported catalyst and method for producing same

Cluster-supporting catalyst having an improved heat resistivity, and method for producing the same are provided. The cluster-supporting catalyst includes boron-substitute zeolite particles, and catalyst metal clusters supported within the pores of the boron-substitute zeolite particles. The method for producing a cluster-supporting catalyst, includes the following steps: providing a dispersion liquid containing a dispersion medium and boron-substitute 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 on the acid sites within the pores of the boron-substitute zeolite particles through an electrostatic interaction.

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Nagoya, Japan

Namiki Toyama