Chonnam National University

Osong Medical Innovation Foundation, Korea University Research and Business Foundation

Hyundai Motor Company

Kia Corporation

Soon Hee Park

Sung June Cho

Kwan Young Lee

Dalyoung Yoon

Jin Hee Park

Seung Gwan Lee

A NOstorage catalyst includes CHA zeolite, a transition metal ion-exchanged in the CHA zeolite, and a rare earth metal that is different the transition metal and is supported on the CHA zeolite. A method for preparing a NOstorage catalyst includes preparing a synthetic mother liquid including a zeolite raw material as a source of silica and alumina, a structure-inducing material, a complexing material, and a solvent, reacting the synthetic mother liquid to prepare a CHA zeolite, and supporting a transition metal and a rare earth metal that is different from the transition metal on the prepared CHA zeolite.

NOstorage catalyst and method for preparing the same

Provided is a method for producing zeolite having a controlled aluminum content, wherein the sodium hydroxide molar concentration of a zeolite synthesis mixture can be adjusted to adjust the aluminum content in synthesized CHA. The structure of the low aluminum-content CHA produced by the provided method does not collapse even after high-temperature hydrothermal treatment, and thus the catalytic activity of the CHA can be maintained. Moreover, by adjusting the aluminum content in the framework, the properties of the produced CHA significantly change, and thus the CHA can be applied to various fields.

Method for producing zeolite having controlled aluminum content by adjusting composition of synthesis mixture

Disclosed are method for synthesizing zeolites by using structure directing agent having benzyl groups and zeolites synthesized therefrom. A zeolite having various effects can be produced by using a material including a structure directing agent containing various benzyl groups, and raw material with various SiO/AlOmolar ratios as alumina and silica source.

Method for synthesizing zeolite using structure directing agent containing benzyl group and zeolite synthesized therefrom

Growing community of inventors

Gwangju, South Korea

Soon Hee Park