ZEOLITE, METHOD FOR PRODUCING ZEOLITE, HONEYCOMB CATALYST USING ZEOLITE, AND EXHAUST GAS PURIFYING DEVICE

摘要

The purpose of the present invention is to provide a zeolite which has excellent NOx purifying performance, and in particular, excellent NOx purifying performance after enduring a thermal load. This zeolite has a CHA structure in which Cu and Ce are supported, and has a Cu/Al molar ratio of 0.25-0.48 and a Ce/Al molar ratio of 0.01-0.03.