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公开(公告)号：US20210300778A1
公开(公告)日：2021-09-30
申请号：US17345121
申请日：2021-06-11
Applicant: Pacific Industrial Development Corporation
Inventor： Anatoly Bortun , David Shepard , Jin Cho , Mila Bortun , Yunkui Li , Wei Wu , Jeffery Lachapelle
Abstract: A nanocrystal-sized cerium-zirconium mixed oxide material includes at least 30% by mass zirconium oxide; between 5% to 55% by mass cerium oxide; and a total of 25% or less by mass of at least one oxide of a rare earth metal selected from the group of lanthanum, neodymium, praseodymium, or yttrium. The nanocrystal-sized cerium-zirconium mixed oxide exhibits hierarchically ordered aggregates having a d50 particle size less than 1.5 μm and a total pore volume after calcination at a temperature of 600° C. or more that is at least 0.7 cm3/g with a fraction of pores between 2 nm to 10 nm being less than 15%. The nanocrystal-sized cerium-zirconium mixed oxide material is prepared using a co-precipitation method followed by milling the dried and calcined oxide material. The nanocrystal-sized cerium-zirconium mixed oxide material forms a particulate filter that may be used in an exhaust system arising from a gas or diesel engine.
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公开(公告)号：US20210071558A1
公开(公告)日：2021-03-11
申请号：US16959465
申请日：2019-01-07
Applicant: Pacific Industrial Development Corporation
Inventor： Anatoly Bortun , Mila Bortun , David Shepard , Yunkui Li , Jin Cho , Wei Wu , Jeffery Lachapelle
Abstract: A method of making an oxygen storage material (OSM) with developed mesoporosity having a small fraction of pores
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公开(公告)号：US12227428B2
公开(公告)日：2025-02-18
申请号：US17422770
申请日：2019-12-19
Applicant: Pacific Industrial Development Corporation
Inventor： Anatoly Bortun , Jin Cho , Yunkui Li , David Shepard , Mila Bortun
Abstract: A nanocrystal-sized cerium-zirconium-aluminum mixed oxide material includes at least 20% by mass zirconium oxide; between 5% to 55% by mass cerium oxide; between 5% to 60% by mass aluminum oxide; and a total of 25% or less by mass of at least one oxide of a rare earth metal selected from the group of lanthanum, neodymium, praseodymium, or yttrium. The nanocrystal-sized cerium-zirconium-aluminum mixed oxide exhibits hierarchically ordered aggregates having a dso particle size less than 1.5 μm, and retains at least 80% of surface area and pore volume after ageing at temperature higher than 1000° C. for at least 6 hours. The nanocrystal-sized cerium-zirconium-aluminum mixed oxide material is prepared using a co-precipitation method followed by milling the dried and calcined oxide material. The nanocrystal-sized cerium-zirconium-aluminum mixed oxide material forms a particulate filter that may be used in an exhaust system arising from a gas or diesel engine.
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Patent Agency Ranking
公开(公告)号：US20220064017A1
公开(公告)日：2022-03-03
申请号：US17422770
申请日：2019-12-19
Applicant: Pacific Industrial Development Corporation
Inventor： Anatoly Bortun , Jin Cho , Yunkui Li , David Shepard , Mila Bortun
Abstract: A nanocrystal-sized cerium-zirconium-aluminum mixed oxide material includes at least 20% by mass zirconium oxide; between 5% to 55% by mass cerium oxide; between 5% to 60% by mass aluminum oxide; and a total of 25% or less by mass of at least one oxide of a rare earth metal selected from the group of lanthanum, neodymium, praseodymium, or yttrium. The nanocrystal-sized cerium-zirconium-aluminum mixed oxide exhibits hierarchically ordered aggregates having a dso particle size less than 1.5 μm, and retains at least 80% of surface area and pore volume after ageing at temperature higher than 1000° C. for at least 6 hours. The nanocrystal-sized cerium-zirconium-aluminum mixed oxide material is prepared using a co-precipitation method followed by milling the dried and calcined oxide material. The nanocrystal-sized cerium-zirconium-aluminum mixed oxide material forms a particulate filter that may be used in an exhaust system arising from a gas or diesel engine
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5.发明授权公开(公告)号：US11224863B2
公开(公告)日：2022-01-18
申请号：US16959460
申请日：2019-01-07
Applicant: Pacific Industrial Development Corporation
Inventor： Anatoly Bortun , Mila Bortun , David Shepard , Yunkui Li , Jin Cho , Wei Wu , Jeffery Lachapelle
Abstract: An oxygen storage material (OSM) that exhibits enhanced redox properties, developed mesoporosity, and a resistance to sintering. The oxygen storage material (OSM) has a high oxygen storage capacity (i.e., OSC>1.5 mmol H2/g) and enhanced reducibility (i.e., bimodal TPR-H2 profile with two Tmax in the temperature range from 150° C. to 550° C.). The OSM is suitable for use as a catalyst and a catalyst support. The method of making the oxygen storage material comprises the preparation of a solution containing zirconium, cerium, rare earth and transition metal salts, followed by the co-precipitation of all constituent metal hydroxides with a base.
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公开(公告)号：US11635009B2
公开(公告)日：2023-04-25
申请号：US16959465
申请日：2019-01-07
Applicant: Pacific Industrial Development Corporation
Inventor： Anatoly Bortun , Mila Bortun , David Shepard , Yunkui Li , Jin Cho , Wei Wu , Jeffery Lachapelle
Abstract: A method of making an oxygen storage material (OSM) with developed mesoporosity having a small fraction of pores
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公开(公告)号：US12129182B2
公开(公告)日：2024-10-29
申请号：US17345121
申请日：2021-06-11
Applicant: Pacific Industrial Development Corporation
Inventor： Anatoly Bortun , David Shepard , Jin Cho , Mila Bortun , Yunkui Li , Wei Wu , Jeffery Lachapelle
CPC classification number: C01G25/006 , F01N3/101 , B82Y30/00 , B82Y40/00 , C01P2004/03 , C01P2004/45 , C01P2004/61 , C01P2004/62 , C01P2004/64 , C01P2006/12 , C01P2006/14
Abstract: A nanocrystal-sized cerium-zirconium mixed oxide material includes at least 30% by mass zirconium oxide; between 5% to 55% by mass cerium oxide; and a total of 25% or less by mass of at least one oxide of a rare earth metal selected from the group of lanthanum, neodymium, praseodymium, or yttrium. The nanocrystal-sized cerium-zirconium mixed oxide exhibits hierarchically ordered aggregates having a d50 particle size less than 1.5 μm and a total pore volume after calcination at a temperature of 600° C. or more that is at least 0.7 cm3/g with a fraction of pores between 2 nm to 10 nm being less than 15%. The nanocrystal-sized cerium-zirconium mixed oxide material is prepared using a co-precipitation method followed by milling the dried and calcined oxide material. The nanocrystal-sized cerium-zirconium mixed oxide material forms a particulate filter that may be used in an exhaust system arising from a gas or diesel engine.
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8.发明申请公开(公告)号：US20210069680A1
公开(公告)日：2021-03-11
申请号：US16959460
申请日：2019-01-07
Applicant: Pacific Industrial Development Corporation
Inventor： Anatoly Bortun , Mila Bortun , David Shepard , Yunkui Li , Jin Cho , Wei Wu , Jeffery Lachapelle
Abstract: An oxygen storage material (OSM) that exhibits enhanced redox properties, developed mesoporosity, and a resistance to sintering. The oxygen storage material (OSM) has a high oxygen storage capacity (i.e., OSC>1.5 mmol H2/g) and enhanced reducibility (i.e., bimodal TPR-H2 profile with two Tmax in the temperature range from 150° C. to 550° C.). The OSM is suitable for use as a catalyst and a catalyst support. The method of making the oxygen storage material comprises the preparation of a solution containing zirconium, cerium, rare earth and transition metal salts, followed by the co-precipitation of all constituent metal hydroxides with a base.
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