公开(公告)号：US09776866B2

公开(公告)日：2017-10-03

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: C01B21/08 ,  C30B1/10 ,  C30B29/38 ,  C01B21/082 ,  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−).

公开(公告)号：US20150037236A1

公开(公告)日：2015-02-05

申请号：US14379218

申请日：2013-02-18

Applicant: Japan Science and Technology Agency

Inventor： Hiroshi Kageyama ,  Kazuki Nakanishi ,  Yoji Kobayashi ,  Atsushi Kitada ,  George Hasegawa

IPC: C01G23/04 ,  C01B21/076 ,  C01B21/082

CPC classification number: C01G23/043 ,  B82Y30/00 ,  C01B21/076 ,  C01B21/0761 ,  C01B21/0821 ,  C01P2002/72 ,  C01P2004/03 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2006/40 ,  C04B35/46 ,  C04B35/58014 ,  C04B38/0032 ,  C04B41/0072 ,  C04B41/009 ,  C04B41/80 ,  C04B2111/0081 ,  C04B2111/00818 ,  C04B2235/3232 ,  C04B2235/3886 ,  C04B2235/404 ,  C04B2235/422 ,  C04B2235/48 ,  C04B2235/616 ,  C04B2235/6587 ,  C04B2235/664 ,  C04B2235/79 ,  C04B2235/81 ,  C25B11/04 ,  H01M4/48 ,  C04B38/00

Abstract: Provided are a macroporous titanium compound monolith and a production method thereof, the macroporous titanium compound monolith having a framework that is composed of a titanium compound other than titanium dioxide, having controlled macropores, and having electron conductivity, the titanium compound being oxygen-deficient titanium oxide, titanium oxynitride, or titanium nitride. Provided is a method including: placing a macroporous titanium dioxide monolith and a metal having titanium-reducing ability in a container, the macroporous titanium dioxide monolith having a co-continuous structure of a macropore and a framework that is composed of titanium dioxide; creating a vacuum atmosphere or an inert gas atmosphere within the container; and heating the monolith and the metal to cause gas-phase reduction that removes oxygen atom from the titanium dioxide composing the monolith by the metal acting as an oxygen getter, thereby obtaining a macroporous oxygen-deficient titanium oxide monolith having a co-continuous structure of the macropore and a framework that is composed of oxygen-deficient titanium oxide, the macroporous oxygen-deficient titanium oxide monolith having electron conductivity derived from the oxygen-deficient titanium oxide.

Abstract translation: 本发明提供一种大孔钛化合物整料及其制造方法，所述大孔钛化合物整料由具有受控大孔的二氧化钛以外的具有电子导电性的钛化合物构成的框架构成，所述钛化合物为缺氧钛 氧化物，氮氧化钛或氮化钛。 提供了一种方法，其包括：将大孔二氧化钛整料和具有钛还原能力的金属放置在容器中，所述大孔二氧化钛整料具有大孔共构连续结构和由二氧化钛构成的框架; 在容器内产生真空气氛或惰性气体气氛; 并将整料和金属加热以引起气相还原，通过作为吸氧剂的金属从构成整体料的二氧化钛除去氧原子，从而获得具有共同连续结构的大孔缺氧氧化钛整料 大孔和由缺氧二氧化钛构成的骨架，其具有衍生自缺氧二氧化钛的电子导电性的大孔氧缺乏二氧化钛整料。

公开(公告)号：US11795062B2

公开(公告)日：2023-10-24

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: B01J23/10 ,  B01J23/12 ,  B01J23/63 ,  B01J23/83 ,  B01J23/86 ,  B01J23/88 ,  B01J23/89 ,  B01J37/04 ,  B01J37/06 ,  B01J37/08 ,  C01C1/04 ,  C01F17/20 ,  C01F17/224

CPC classification number: C01F17/20 ,  B01J23/63 ,  C01C1/0411 ,  C01F17/224

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.

公开(公告)号：US10017395B2

公开(公告)日：2018-07-10

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

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：US09902623B2

公开(公告)日：2018-02-27

申请号：US14379218

申请日：2013-02-18

Applicant: Japan Science and Technology Agency

Inventor： Hiroshi Kageyama ,  Kazuki Nakanishi ,  Yoji Kobayashi ,  Atsushi Kitada ,  George Hasegawa

IPC: C01G23/04 ,  B82Y30/00 ,  C01B21/076 ,  C04B35/58 ,  C01B21/082 ,  C04B35/46 ,  C04B41/00 ,  C04B41/80 ,  C04B38/00 ,  C25B11/04 ,  H01M4/48 ,  C04B111/00

CPC classification number: C01G23/043 ,  B82Y30/00 ,  C01B21/076 ,  C01B21/0761 ,  C01B21/0821 ,  C01P2002/72 ,  C01P2004/03 ,  C01P2004/61 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2006/40 ,  C04B35/46 ,  C04B35/58014 ,  C04B38/0032 ,  C04B41/0072 ,  C04B41/009 ,  C04B41/80 ,  C04B2111/0081 ,  C04B2111/00818 ,  C04B2235/3232 ,  C04B2235/3886 ,  C04B2235/404 ,  C04B2235/422 ,  C04B2235/48 ,  C04B2235/616 ,  C04B2235/6587 ,  C04B2235/664 ,  C04B2235/79 ,  C04B2235/81 ,  C25B11/04 ,  H01M4/48 ,  C04B38/00

Abstract: Provided are a macroporous titanium compound monolith and a production method thereof, the macroporous titanium compound monolith having a framework that is composed of a titanium compound other than titanium dioxide, having controlled macropores, and having electron conductivity, the titanium compound being oxygen-deficient titanium oxide, titanium oxynitride, or titanium nitride. Provided is a method including: placing a macroporous titanium dioxide monolith and a metal having titanium-reducing ability in a container, the macroporous titanium dioxide monolith having a co-continuous structure of a macropore and a framework that is composed of titanium dioxide; creating a vacuum atmosphere or an inert gas atmosphere within the container; and heating the monolith and the metal to cause gas-phase reduction that removes oxygen atom from the titanium dioxide composing the monolith by the metal acting as an oxygen getter, thereby obtaining a macroporous oxygen-deficient titanium oxide monolith having a co-continuous structure of the macropore and a framework that is composed of oxygen-deficient titanium oxide, the macroporous oxygen-deficient titanium oxide monolith having electron conductivity derived from the oxygen-deficient titanium oxide.