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公开(公告)号：US10695751B2
公开(公告)日：2020-06-30
申请号：US15760072
申请日：2016-09-15
摘要： The invention provides a Laves phase intermetallic compound having a composition represented by general formula ARu2 (A is Y, Sc, or at least one element selected from lanthanoid elements excluding Ce), the crystallite size thereof being 1 nm to 100 nm; a catalyst including the intermetallic compound as an active ingredient; and a method for producing ammonia using the same.
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2.发明授权公开(公告)号：US11433378B2
公开(公告)日：2022-09-06
申请号：US16630269
申请日：2018-07-12
发明人： Hideo Hosono , Yutong Gong , Jiazhen Wu , Masaaki Kitano , Toshiharu Yokoyama , Yangfan Lu , Tiannan Ye
摘要： Provided are an intermetallic compound having high stability and high activity, and a catalyst using the same. A hydrogen storage/release material containing an intermetallic compound represented by formula (1): RTX . . . (1) wherein R represents a lanthanoid element, T represents a transition metal in period 4 or period 5 in the periodic table, and X represents Si, Al or Ge.
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公开(公告)号：US10792645B2
公开(公告)日：2020-10-06
申请号：US16065381
申请日：2016-12-22
发明人： Hideo Hosono , Masaaki Kitano , Tomofumi Tada , Toshiharu Yokoyama , Yoshitake Toda , Yangfan Lu , Jiang Li
IPC分类号： B01J23/46 , C01C1/04 , B01J37/02 , B01J37/08 , B01J35/00 , B01J35/10 , B01J23/10 , B01J23/14 , B01J23/63 , B01J23/62
摘要： An electride, which is more stable and can be more easily obtained, is provided or is made available, and as a result, a catalyst particularly useful for chemical synthesis, in which the electride is particularly used, is provided. A transition metal-supporting intermetallic compound having a transition metal supported on an intermetallic compound represented by the following formula (1): A5X3 . . . (1) wherein A represents a rare earth element, and X represents Si or Ge.
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4.发明授权公开(公告)号：US10322940B2
公开(公告)日：2019-06-18
申请号：US15532877
申请日：2015-12-04
IPC分类号： C01B3/04 , C01C1/04 , B01J21/18 , B01J23/46 , B01J23/58 , B01J23/63 , B01J27/24 , B01J35/00 , B01J35/10 , B01J37/00 , B01J37/02 , B01J37/04 , B01J37/08 , B01J23/648 , C01B21/092
摘要： An ammonia synthesis catalyst having high activity is obtained by having a two-dimensional electride compound having a lamellar crystal structure such as Ca2N support a transition metal. However, since the two-dimensional electride compound is unstable, the stability of the catalyst is low. In addition, in cases where a two-dimensional electride compound is used as a catalyst support, it is difficult to shape the catalyst depending on reactions since the two-dimensional electride compound has poor processability. A composite which includes a transition metal, a support and a metal amide compound, wherein the support is a metal oxide or a carbonaceous support; and the metal amide compound is a metal amide compound represented by general formula (1). M(NH2)x (1) (In general formula (1), M represents at least one metal atom selected from the group consisting of Li, Na, K, Be, Mg, Ca, Sr, Ba and Eu; and x represents the valence of M.).
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公开(公告)号：US10118162B2
公开(公告)日：2018-11-06
申请号：US15121702
申请日：2015-02-12
发明人： Hideo Hosono , Michikazu Hara , Masaaki Kitano , Toshiharu Yokoyama , Yasunori Inoue , Shinji Kambara
IPC分类号： C01C1/04 , B01J35/00 , B01J27/24 , B01J27/22 , B01J23/46 , B01J35/10 , C01B21/06 , B01J23/745 , B01J23/75
摘要： A catalyst is provided which is used for continuously synthesizing ammonia using a gas containing hydrogen and nitrogen as a raw material, wherein a transition metal which exhibits catalytic activity is supported by a support, and the support is a two-dimensional electride or a precursor thereof. The two-dimensional electride or the precursor thereof is a metal nitride represented by MxNyHz (M represents one or two or more of Group II metals selected from the group consisting of Mg, Ca, Sr and Ba, and x, y and z are in ranges of 1≤x≤11, 1≤y≤8, and 0≤z≤4 respectively, in which x is an integer, and y and z are not limited to an integer) or M3N2 (M is the same as above), or a metal carbide selected from the group consisting of Y2C, Sc2C, Gd2C, Tb2C, Dy2C, Ho2C and Er2C. These catalysts are used for continuously reacting nitrogen with hydrogen, which are raw materials, on the catalyst, wherein the reaction is performed in an ammonia synthesis reaction system under the preferable conditions of a reaction temperature which is equal to or higher than 100° C. and equal to or lower than 600° C., and a reaction pressure which is equal to or higher than 10 kPa and lower than 20 MPa.
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公开(公告)号：US20170095793A1
公开(公告)日：2017-04-06
申请号：US15383412
申请日：2016-12-19
发明人： Hideo Hosono , Michikazu Hara , Yasunori Inoue , Masaaki Kitano , Fumitaka Hayashi , Toshiharu Yokoyama , Satoru Matsuishi , Yoshitake Toda
CPC分类号： B01J21/16 , B01J23/02 , B01J23/462 , B01J23/58 , B01J35/0006 , B01J35/0033 , B01J35/026 , B01J35/1009 , B01J35/1014 , B01J37/0201 , B01J37/04 , B01J37/08 , B01J37/082 , B01J37/10 , B01J37/16 , B01J37/18 , B01J37/347 , C01B33/26 , C01C1/0411 , C01F7/02 , C01F7/164 , C01P2006/12 , C01P2006/40 , Y02P20/52 , Y10T428/2982
摘要： If a conductive mayenite compound having a large specific surface area is obtained, the usefulness thereof in respective applications is remarkably increased. A conductive mayenite compound powder having a conduction electron density of 1015 cm−3 or more and a specific surface area of 5 m2g−1 or more is produced by: the following steps: (1) forming a precursor powder by subjecting a mixture of a starting material powder and water to a hydrothermal treatment; (2) forming a mayenite compound powder by heating and dehydrating the precursor powder; (3) forming an activated mayenite compound powder by heating the compound powder in an inert gas atmosphere or in a vacuum; and (4) injecting electrons into the mayenite compound through a reduction treatment by mixing the activated mayenite compound powder with a reducing agent.
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7.发明授权公开(公告)号：US10759668B2
公开(公告)日：2020-09-01
申请号：US15774195
申请日：2016-11-09
发明人： Hideo Hosono , Michikazu Hara , Masaaki Kitano , Hiroshi Mizoguchi , Toshiharu Yokoyama , Kyosuke Yamagata
IPC分类号： C01C1/04 , B01J37/04 , B01J23/58 , B01J37/08 , B01J35/00 , B01J37/18 , B01J35/10 , B01J23/46 , C01G55/00 , B01J23/78 , B01J23/63 , B01J23/83
摘要： The present invention provides a supported metal catalyst, a method for synthesizing ammonia using said catalyst, and a supported metal material in which a transition metal is supported on a support, wherein the support is a metal hydride represented by general formula (1): XHn . . . (1); and in general formula (1), X represents at least one selected from the group consisting of atoms from Groups 2 and 3, and lanthanoid atoms, and n is in a range of 2
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公开(公告)号：US10173202B2
公开(公告)日：2019-01-08
申请号：US15121702
申请日：2015-02-12
发明人： Hideo Hosono , Michikazu Hara , Masaaki Kitano , Toshiharu Yokoyama , Yasunori Inoue , Shinji Kambara
IPC分类号： C01C1/04 , B01J35/00 , B01J27/24 , B01J27/22 , B01J23/46 , B01J35/10 , C01B21/06 , B01J23/745 , B01J23/75
摘要： A catalyst is provided which is used for continuously synthesizing ammonia using a gas containing hydrogen and nitrogen as a raw material, wherein a transition metal which exhibits catalytic activity is supported by a support, and the support is a two-dimensional electride or a precursor thereof. The two-dimensional electride or the precursor thereof is a metal nitride represented by MxNyHz (M represents one or two or more of Group II metals selected from the group consisting of Mg, Ca, Sr and Ba, and x, y and z are in ranges of 1≤x≤11, 1≤y≤8, and 0≤z≤4 respectively, in which x is an integer, and y and z are not limited to an integer) or M3N2 (M is the same as above), or a metal carbide selected from the group consisting of Y2C, Sc2C, Gd2C, Tb2C, Dy2C, Ho2C and Er2C. These catalysts are used for continuously reacting nitrogen with hydrogen, which are raw materials, on the catalyst, wherein the reaction is performed in an ammonia synthesis reaction system under the preferable conditions of a reaction temperature which is equal to or higher than 100° C. and equal to or lower than 600° C., and a reaction pressure which is equal to or higher than 10 kPa and lower than 20 MPa.
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9.发明授权公开(公告)号：US10124319B2
公开(公告)日：2018-11-13
申请号：US15383412
申请日：2016-12-19
发明人： Hideo Hosono , Michikazu Hara , Yasunori Inoue , Masaaki Kitano , Fumitaka Hayashi , Toshiharu Yokoyama , Satoru Matsuishi , Yoshitake Toda
IPC分类号： B01J21/00 , B01J21/16 , C01C1/04 , C01F7/16 , B01J37/08 , B01J37/16 , B01J23/58 , B01J23/02 , B01J35/00 , B01J37/02 , B01J37/04 , C01F7/02 , B01J37/10 , B01J37/18 , B01J23/46 , B01J35/02 , B01J35/10 , C01B33/26 , B01J37/34
摘要： If a conductive mayenite compound having a large specific surface area is obtained, the usefulness thereof in respective applications is remarkably increased. A conductive mayenite compound powder having a conduction electron density of 1015 cm−3 or more and a specific surface area of 5 m2g−1 or more is produced by: the following steps: (1) forming a precursor powder by subjecting a mixture of a starting material powder and water to a hydrothermal treatment; (2) forming a mayenite compound powder by heating and dehydrating the precursor powder; (3) forming an activated mayenite compound powder by heating the compound powder in an inert gas atmosphere or in a vacuum; and (4) injecting electrons into the mayenite compound through a reduction treatment by mixing the activated mayenite compound powder with a reducing agent.
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公开(公告)号：US10016742B2
公开(公告)日：2018-07-10
申请号：US15123602
申请日：2015-02-12
CPC分类号： B01J20/041 , B01J20/08 , C01C1/006 , C01F7/164 , C01F7/166 , C01P2002/82 , C01P2002/86 , C01P2006/40
摘要： The invention related to a material that can stably hold an imide anion (NH2−) therein even in the atmosphere or in a solvent, and a method for synthesizing the material and a use of the material. A mayenite-type compound into which imide anions are incorporated at a concentration of 1×1018 cm−3 or more are provided. The mayenite-type compound can be produced by heating a mayenite-type compound including electrons or free oxygen ions in a cage thereof, in liquefied ammonia at 450 to 700° C. and at a pressure of 30 to 100 MPa. The compound has properties such that active imide anions can be easily incorporated into the compound and the active imide anions can be easily released in the form of ammonia from the compound, and the compound has chemical stability.
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