公开(公告)号：US20210339233A1

公开(公告)日：2021-11-04

申请号：US17283584

申请日：2019-10-24

Applicant: Pacific Industrial Development Corporation

Inventor： De Gao ,  Yunkui Li ,  David Shepard ,  Jeffery Lachapelle ,  Wei Wu

IPC: B01J29/76 ,  C01B39/48 ,  B01J35/02 ,  B01J35/10 ,  B01J37/04 ,  B01J37/10 ,  B01J37/00 ,  B01J37/30 ,  B01J37/02 ,  B01J20/28 ,  B01D53/94

Abstract: A method of forming an SSZ-13 zeolite in a hydrothermal synthesis yields an SSZ-13 zeolite that exhibits a silica to alumina (SiO2:Al2O3) molar ratio (SAR) that is less than 16:1; 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 SSZ-13 also exhibits a Brönsted acidity that is in the range of 2.0 mmol/g to 3.4 mmol/g as measured by ammonia temperature programmed desorption. A catalyst formed by substituting a metal into the framework of the zeolite provides for low temperature light-off of the NOx conversion reactions, while maintaining substantial performance at higher temperatures demonstrating hydrothermal stability.

公开(公告)号：US20210323832A1

公开(公告)日：2021-10-21

申请号：US17271233

申请日：2019-08-23

Applicant: Pacific Industrial Development Corporation

Inventor： Yunkui Li ,  David Shepard ,  De Gao ,  Wei Wu ,  Jeffery Lachapelle ,  Geng Zhang

IPC: C01B39/48 ,  B01J29/76 ,  B01J35/02 ,  B01J35/10 ,  B01J37/04 ,  B01J37/00 ,  B01J37/10 ,  B01J37/03 ,  B01J37/30

Abstract: A method of forming an AEI-type zeolite in a hydrothermal synthesis without the use of hydrogen fluoride (HF) and in the absence of any FAU zeolite Y. A gel composition formed upon using this method includes one or more sources of silica; one or more sources of alumina, one or more organic structure directing agents (OSDA); a source of alkali metal ions; and water. This gel composition is defined by the molar ratios of: SiO2/AI2O3 16:1 to 100:1; M2O/SiO2 0.15:1 to 0.30:1; ROH/SiO2 0.05:1 to 0.20:1; 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 135° C. to about 180° C. for 15 hours to 168 hours forms the crystalline AEI-type zeolite having a silica to alumina ratio (SiO2:AI2O3) that is greater than 8:1.

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

IPC: C01G25/00 ,  F01N3/10

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.

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

IPC: F01N3/10 ,  B01J23/00 ,  B01J23/04 ,  B01J35/10 ,  B01J35/00 ,  B01J37/08 ,  B01J37/03

Abstract: A method of making an oxygen storage material (OSM) with developed mesoporosity having a small fraction of pores

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.

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.

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

IPC: C08K3/22 ,  C08K3/016 ,  C01F7/44

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.

公开(公告)号：US20230031405A1

公开(公告)日：2023-02-02

申请号：US17789535

申请日：2020-12-21

Applicant: Pacific Industrial Development Corporation

Inventor： Shuang Gao ,  David Shepard ,  Yunkui Li ,  Ashwin Sankaran

IPC: H01M10/0525 ,  H01M50/451 ,  H01M50/414 ,  H01M50/46 ,  H01M50/446 ,  H01M4/485 ,  H01M4/38 ,  H01M4/583 ,  H01M10/0568 ,  H01M50/491

Abstract: An electrochemical cell, such as a secondary cell of a lithium-ion battery, that includes a positive electrode with an active material that acts as a cathode; a negative electrode with an active material that acts as an anode; a non-aqueous electrolyte; and a separator placed between the positive electrode and negative electrode. The separator including an inorganic material. This inorganic material includes a mixture of a first inorganic particle and one or more second inorganic particles; wherein the inorganic material absorbs one or more of moisture, free transition metal ions, or hydrogen fluoride (HF) that become present in the electrochemical cell. One or more of the cells may be combined in a housing to form a lithium-ion secondary battery.

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

IPC: B01J20/18 ,  B01D15/36 ,  B01J20/10 ,  B01J20/08 ,  B01J20/04 ,  B01J20/02 ,  B01J20/28

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.

公开(公告)号：US20220376357A1

公开(公告)日：2022-11-24

申请号：US17772268

申请日：2020-10-30

Applicant: Pacific Industrial Development Corporation

Inventor： Shuang Gao ,  David Shepard ,  Yunkui Li ,  Anatoly Bortun

IPC: H01M50/446 ,  H01M50/434 ,  H01M50/417 ,  H01M10/0525

Abstract: An electrochemical cell that includes a positive electrode with an active material acting as a cathode; a negative electrode with an active material acting as an anode; a non-aqueous electrolyte; and a separator placed between the positive electrode and negative electrode. In one embodiment, the separator includes an inorganic material, i.e., a type of boehmite, formed of nanometer-sized particles and optionally one or more binders and/or ceramic particles. In a second embodiment, at least one of the cathode, the anode, the electrolyte, and the separator includes the boehmite particles, which absorb one or more of moisture and/or hydrogen fluoride that become present in the cell. One or more of the cells may be combined in a housing to form a lithium-ion secondary battery.