Japan Science and Technology Agency

Kiya Ogasawara

Hideo Hosono

Toshiharu Yokoyama

Masaaki Kitano

Jun Kujirai

Ryu Takashima

Kayato Ooya

Yo Agawa

The invention is related to a layered double hydroxide electride which can be produced without high-temperature treatment, and a production method of which cost can be reduced. The layered double hydroxide electride contains electrons between layers and has an electron density of 2.0×10cmor more. The method of producing the layered double hydroxide electride includes a step of mixing a starting layered double hydroxide with an electron exchanger for exchanging anions existing between layers of the starting layered double hydroxide for electrons to produce the layered double hydroxide electride.

Layered double hydroxide electride and method for producing same

The present invention is related to an oxynitride-hydride which is capable of achieving both stabilization and improvement of catalyst performance when used as a support, and the oxynitride-hydride can be easily synthesized. The oxynitride-hydride is represented by the following general formula (1),ABONH  (1)

Oxynitride-hydride, metal-supported material containing oxynitride-hydride, and ammonia synthesis catalyst

The invention provides a method of producing a metal oxyhydride, capable of synthesizing the metal oxyhydride under reaction conditions close to atmospheric pressure, and excellent in productivity and cost. The method of producing a metal oxyhydride of the present invention includes reacting an oxide with a metal hydride in a hydrogen atmosphere. A non-oxygen element constituting the oxide comprises only one kind of non-oxygen element. A pressure condition of the reaction is 0.1 to 0.9 MPa, and a temperature of the reaction is 500 to 1000° C.

Method of producing metal oxyhydride, metal oxyhydride, and method of synthesizing ammonia using same

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Hadano, Japan

Kiya Ogasawara