Toyota Jidosha Kabushiki Kaisha

Yoshihiro Goto

Masahide Miura

Akira Morikawa

Hiromasa Suzuki

Nobuyuki Takagi

Hideyuki Matsumoto

Toshitaka Tanabe

Marie Ishikawa

Masashi Kikugawa

Haruo Imagawa

Mitsuru Matsumoto

Tetsuya Namba

Akinori Satou

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);

Ammonia synthesis catalyst, method of producing the same, and method of synthesizing ammonia using the same

An oxygen storage material comprises a Ce&#x2014;Zr-Ln-Ti-based composite oxide containing cerium (Ce), zirconium (Zr), a rear-earth element (Ln: excluding cerium), and titanium (Ti), wherein

Oxygen storage material and method for producing the same

An oxygen storage material comprises a La&#x2014;Co&#x2014;Al-based composite oxide containing lanthanum, cobalt and aluminum. The La&#x2014;Co&#x2014;Al-based composite oxide is in a form in which at least part of the aluminum is solid-dissolved in a La&#x2014;Co composite oxide having a perovskite structure, and has a composition expressed by the following chemical formula (1):LaCoAlO&#x2003;&#x2003;(1)where x and y are numbers satisfying conditions of 0&#x3c;x &#x3c;1 and 0&#x3c;y&#x3c;1, where x+y=0.5 to 1.5, and &#x3b4; is a number of 1.5 to 4.5.

To provide an oxygen storage material that is capable of exhibiting an excellent oxygen storage capacity (OSC) even at a low temperature of about 300&#xb0; C. and has a sufficiently high efficiency of use of cerium contained therein. An oxygen storage material including a ceria-zirconia-copper oxide-based composite oxide that contains cerium, zirconium, and copper, in which

An oxygen storage material comprises three pyrochlore-type composite oxides which are a ceria-zirconia composite oxide, a lanthana-zirconia composite oxide, and a ceria-zirconia-lanthana composite oxide, and which coexist together, wherein the oxygen storage material contains:

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Nagakute, Japan

Yoshihiro Goto