公开(公告)号：US20170073229A1

公开(公告)日：2017-03-16

申请号：US15125469

申请日：2015-01-09

Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY

Inventor： Hiroshi KAGEYAMA ,  Yoji KOBAYASHI ,  Kohei AIZU ,  Wataru YOSHIMUNE ,  Hideo HOSONO

IPC: C01B21/082 ,  C30B1/10 ,  C30B29/38 ,  C01G23/00

CPC classification number: C01B21/0821 ,  C01G23/006 ,  C01P2002/34 ,  C01P2002/72 ,  C01P2002/77 ,  C30B1/10 ,  C30B29/38

Abstract: The method for producing a perovskite metal oxynitride of the present invention, comprises: a hydrogenation step (A) of forming a perovskite oxyhydride in which an oxide ion (O2−) and a hydride ion (H−) coexist, by reducing a perovskite oxide through a reductive oxygen elimination reaction using a metal hydride; and a nitriding step (B) of forming a perovskite oxynitride containing a nitride ion (N3−) by heat-treating the perovskite oxyhydride in the presence of a nitrogen source substance at a temperature of 300° C. or higher and 600° C. or lower and exchanging the hydride ion (H−) for a nitride ion (N3−).

Abstract translation: 本发明的钙钛矿金属氮氧化物的制造方法包括：通过还原钙钛矿氧化物形成其中氧化物离子（O2-）和氢化物离子（H-）共存的钙钛矿氢氧化物的氢化步骤（A） 通过使用金属氢化物的还原氧消除反应; 以及通过在氮源物质的存在下在300℃以上且600℃的温度下热处理钙钛矿氢氧化物，形成含有氮化物离子（N 3 - ）的钙钛矿氧氮化物的氮化工序（B） 或更低，并交换氢离子（H-）用于氮化物离子（N3-）。

公开(公告)号：US20170088433A1

公开(公告)日：2017-03-30

申请号：US15125462

申请日：2015-01-09

Applicant: Japan Science and Technology Agency

Inventor： Hiroshi KAGEYAMA ,  Yoji KOBAYASHI ,  Naoya MASUDA ,  Hideo HOSONO

IPC: C01C1/04 ,  B01J37/16 ,  B01J23/00 ,  B01J37/02 ,  B01J23/58 ,  B01J23/78

CPC classification number: C01C1/0411 ,  B01J23/002 ,  B01J23/58 ,  B01J23/78 ,  B01J37/0236 ,  B01J37/04 ,  B01J37/086 ,  B01J37/16 ,  B01J2523/00 ,  Y02P20/52 ,  B01J2523/25 ,  B01J2523/47 ,  B01J2523/821 ,  B01J2523/845 ,  B01J2523/842

Abstract: The ammonia synthesis catalyst of the present invention, comprises: a powder of a perovskite oxyhydride having hydride (H−) incorporated therein as a support; and a metal or a metal compound exhibiting a catalytic activity for ammonia synthesis, supported on the support, and the perovskite oxyhydride is represented by ATiO3-xHx (wherein A represents Ca, Sr, or Ba, and 0.1≦x≦0.6).

公开(公告)号：US20210002142A1

公开(公告)日：2021-01-07

申请号：US16980166

申请日：2019-03-13

Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY

Inventor： Yoji KOBAYASHI ,  Hiroshi KAGEYAMA ,  Hiroki YAMASHITA ,  Thibault BROUX

IPC: C01F17/224 ,  B01J23/63 ,  C01C1/04

Abstract: The present invention is to provide an electron or hydride ion intake/release material comprising a lanthanoid oxyhydride represented by the formula Ln(HO) (in the formula, Ln represents a lanthanoid element) or an electron or hydride ion intake/release composition comprising at least one kind of lanthanoid oxyhydride; a transition metal-supported material wherein a transition metal is supported by the above electron or hydride ion intake/release material or electron or hydride ion intake/release composition; and a catalyst comprising the transition metal-supported material. The electron or hydride ion intake/release material or electron or hydride ion intake/release composition according to the present invention has a higher ability for intake/release of electron or hydride ion than that of a conventional hydride-containing compound, and can be used effectively as a catalyst such as a catalyst having excellent ammonia synthesis activity by supporting a transition metal thereon.