MUMBAI, India, June 24 -- Intellectual Property India has published a patent application (202647069122 A) filed by Mitsui Kinzoku Company, Limited on June 02, 2026, for Exhaust Gas Purification Catalyst.
Inventors include Moriyama Naoki; Iwashina Katsuya; and Kuramochi Satoru.
The application for the patent was published on June 12, 2026, under issue no. 24/2026.
Abstract: This exhaust gas purification catalyst has a base material and a catalyst layer provided on the base material. The catalyst layer includes a layer a, a layer b, and a layer c. The layer a is provided on an upstream side of the layer b in a flow direction of exhaust gas. The layer c is laminated on at least one of the layer a and the layer b. In the laminated portion of the layer c and the at least one of the layer a and the layer b, the layer c is provided at a position further from the base material than the at least one of the layer a and the layer b. The layer a contains Pd. The layer b contains Pt. CPd/CPt, which is the ratio of the mass content CPd of the Pd contained in the layer a to the mass content CPt of the Pt contained in the layer b, exceeds 1. The layer c contains Rh, a Ce-Zr-based composite oxide, and a Zr-based oxide. In the layer c, at least a portion of the Rh is supported by the Zr-based oxide.
Disclaimer: Curated by HT Syndication.
