The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 19, 2023
Filed:
Apr. 08, 2022
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Masashi Kikugawa, Nagakute, JP;
Yoshihiro Goto, Nagakute, JP;
Haruo Imagawa, Nagakute, JP;
Mitsuru Matsumoto, Nagakute-shi, JP;
Akinori Satou, Mishima, JP;
Marie Ishikawa, Nagoya, JP;
Tetsuya Namba, Koriyama, JP;
Hideyuki Matsumoto, Tokyo, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
An ammonia synthesis catalyst, includes a composite oxide carrier in which at least one additive metal element selected from the group consisting of titanium (Ti), zirconium (Zr), hafnium (Hf), aluminum (Al), gallium (Ga), indium (In), silicon (Si), germanium (Ge), and tin (Sn) is solid-solutionized in a composite oxide containing cerium (Ce) and a lanthanide other than Ce and having a composition represented by the following formula:CeABO(in the formula, A represents a lanthanide other than Ce, B represents the additive metal element, x represents a molar fraction of Ce, y represents a molar fraction of the additive metal element, 1−x−y represents a molar fraction of a lanthanide other than Ce, x and y satisfy 0.1≤x≤0.9, 0.01≤y≤0.3, and 0.11≤x+y≤0.91, d represents a molar ratio of oxygen atoms, and 1.5≤d≤2 is satisfied);