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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：US10882755B2
公开(公告)日：2021-01-05
申请号：US16088858
申请日：2017-03-30
Applicant: Pacific Industrial Development Corporation
Inventor： Anatoly Bortun , David Shepard , Yunkui Li , Wei Wu , Jeffery Lachapelle
IPC: C01G25/00
Abstract: Mesoporous, zirconium-based mixed oxides and a method of making the same comprises: injecting a polyvalent metal-containing solution into an electrolyte solution to form a mother liquor; forming a precipitate; aging the precipitate in the mother liquor to form the mixed oxides; washing the mixed oxides with an aqueous medium; drying and collecting the mixed oxides. The pH of the electrolyte solution exceeds the isoelectric point for zirconium-based mixed oxides. The mixed oxides exhibit a single particle size distribution, improved Ce02 reducibility in the presence of Rhodium, a decrease in surface area after calcination (800-1100° C.) that is not more than 55%, and a tetragonal/cubic structure after calcination. After calcination at 1100° C. for 10 hours in air, the mixed oxides exhibit a surface area >25 m2/g, a pore volume >0.20 cm3/g, an average pore size >30 nm, and an average crystallite size between 8-15 nm.
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公开(公告)号：US10702849B2
公开(公告)日：2020-07-07
申请号：US16430916
申请日：2019-06-04
Applicant: Pacific Industrial Development Corporation
Inventor： David Shepard , Christopher Zyskowski , Jessica Brown , Jeffery Lachapelle , Wei Wu
IPC: B01J20/08 , B01J20/06 , B01J20/28 , B01J23/72 , B01J23/745 , B01J23/75 , B01J21/06 , B01J35/02 , B01J35/10 , B01J35/04 , B01D53/94 , B01D53/04
Abstract: An inorganic oxide material doped with nano-rare earth oxide particles that is capable of trapping one or more of NOx or SOx at a temperature that is less than 400° C. The nano-rare earth oxide particles have a particle size that is less than 10 nanometers. The catalyst support can trap at least 0.5% NO2 at a temperature less than 350° C. and/or at least 0.4% SO2 at a temperature less than 325° C. The catalyst support can trap at least 0.5% NO2 and/or at least 0.2% SO2 at a temperature that is less than 250° C. after being aged at 800° C. for 16 hours in a 10% steam environment. The catalyst support exhibits at least a 25% increase in capacity for at least one of NOx or SOx trapping at a temperature that is less than 400° C. when compared to a conventional rare earth doped support in a 10% steam environment.
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公开(公告)号：US10344140B2
公开(公告)日：2019-07-09
申请号：US15534146
申请日：2015-12-10
Applicant: Pacific Industrial Development Corporation
Inventor： David Shepard , Nicholas Goodman , Jeffery Lachapelle , John Novak , Wei Wu
Abstract: A crystalline Boehmite product and a method of forming said product is provided in which the crystalline Boehmite exhibits an average particle size (d50) that is less than 7,000 nanometers. This method comprises preparing an aqueous slurry by mixing together water, large aluminum oxide precursors, a highly dispersible Boehmite grade, and optionally, an organic dispersing agent; adjusting the pH of the slurry; heating the slurry for a predetermined duration of time; collecting the slurry to form a wet cake; and drying the wet cake to obtain the crystalline Boehmite product. The crystalline Boehmite product may be mixed with a plastic resin to form a flame retardant plastic mixture, which can be subjected to a conventional plastic processing method to form a flame retardant composite.
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Patent Agency Ranking
公开(公告)号：US20250118862A1
公开(公告)日：2025-04-10
申请号：US18695507
申请日：2022-09-28
Applicant: Pacific Industrial Development Corporation
Inventor： Bing Tan , Wei Wu , David Shepard , Ashwin Sankaran , Yunkui Li
IPC: H01M50/431 , H01M4/02 , H01M4/485 , H01M4/505 , H01M4/62 , H01M10/0525
Abstract: A cell for use in an electrochemical cell, that includes a positive electrode, a negative electrode, an electrolyte, and a separator in the form of a zeolite-based material comprising one or more naturally occurring or synthetically synthesized zeolites applied directly to at least one of the positive electrode and the negative electrode. The positive electrode configured so that non-reactive metal ions are reversibly extracted there from and inserted therein. The negative electrode configured to reversibly accept and release the non-reactive metal ions. The electrolyte positioned between and in contact with the negative electrode and the positive electrode, such that the electrolyte supports a reversible flow of the non-reactive metal ions between the positive electrode and the negative electrode. The separator being configured to electrically isolate the positive electrode from the negative electrode, while being permeable to the reversible flow of the non-reactive metal ions there through.
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公开(公告)号：US20230036486A1
公开(公告)日：2023-02-02
申请号：US17869851
申请日：2022-07-21
Applicant: Pacific Industrial Development Corporation
Inventor： Bing Tan , Yuhao Liao , Andrew Rajewski , Jeffery Lachapelle , Wei Wu
IPC: H01M4/525 , H01M4/485 , H01M4/505 , H01M10/0525 , H01M4/04
Abstract: A method for preparing high nickel lithiated metal oxides that includes selecting one or more nickel precursors; at least one non-corrosive lithium salt; and a plurality of metal oxide or hydroxide precursors. The metal precursors and lithium salts are mixed together to form a mixture comprising: wherein x = 1.0 - 1.1, 0.80 ≤ y ≤ 0.90, 0.03
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公开(公告)号：US20220379284A1
公开(公告)日：2022-12-01
申请号：US17740403
申请日：2022-05-10
Applicant: Pacific Industrial Development Corporation
Inventor： Jeffery Lachapelle , David Shepard , Ashwin Sankaran , Wei Wu , Yunkui Li
Abstract: An apparatus, system, and method for removing impurities from a non-aqueous electrolyte used in an electrochemical cell. The apparatus includes a vessel having one or more chambers with an inlet and an outlet configured to allow the flow of the electrolyte through the one or more chambers; and an inorganic scavenging agent located within the one or more chambers. The inorganic scavenging agent includes one or more types of zeolite particles, at least one type of absorbent filler particles, or a combination of the zeolite and absorbent filler particles. The inorganic scavenging agent absorbs one or more of moisture, free transition metal ions, or hydrogen fluoride (HF) that is present as impurities in the non-aqueous electrolyte.
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公开(公告)号：US20220153600A1
公开(公告)日：2022-05-19
申请号：US17433409
申请日：2020-04-09
Applicant: Pacific Industrial Development Corporation
Inventor： Yunkui Li , Wei Wu , De Gao , David Shepard , Jeffery Lachapelle , Geng Zhang
Abstract: A method of continuously forming AEI-type zeolites in a tubular reactor via a hydrothermal synthesis. A gel composition formed upon using this method includes one or more sources of silica, alumina, organic structure directing agents (OSDA), alkali metal ions; water; and optionally zeolite seeds. This gel composition is defined by the molar ratios of SiO2/AI2O3 15:1 to 100:1; M2O/SiO2 0.15:1 to 0.30:1; ROH/SiO2 0.05:1 to 0.2:1; and H2O/SiO2 5:1 to 20:1; wherein M is the alkali metal ion and R is an organic moiety derived from the OSDA. This gel composition, after reacting at a temperature between 180° C. to about 220° C. for less than 2 hours forms the crystalline AEI-type zeolite having a silica to alumina ratio (SiO2/AI2O3) that is greater than 14:1.
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公开(公告)号：US20210394165A1
公开(公告)日：2021-12-23
申请号：US17292753
申请日：2019-11-08
Applicant: Pacific Industrial Development Corporation
Inventor： De Gao , Yunkui Li , David Shepard , Jeffery Lachapelle , Wei Wu
Abstract: A method of forming an AFX zeolite in a hydrothermal synthesis that exhibits a silica to alumina (SiO2AI2O3) molar ratio (SAR) that is between 8:1 and 26:1; has a morphology that includes one or more of cubic, spheroidal, or rhombic particles with a crystal size that is in the range of about 0.1 micrometer (μm) to 10 μm. This AFX zeolite also exhibits a Brönsted acidity that is in the range of 1.2 mmol/g to 3.6 mmol/g as measured by ammonia temperature programmed desorption. A catalyst formed by substituting a metal into the framework of the zeolite exhibits about a 100% conversion of NO emissions over the temperature range of 300° C. to 650° C.
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