中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

6 records (took 0.02 seconds)

    Structured catalytic nanoparticles and method of preparation
    1.
    发明专利
    Structured catalytic nanoparticles and method of preparation 未知

    公开(公告)号：AU2011224865A1

    公开(公告)日：2012-10-04

    申请号：AU2011224865

    申请日：2011-03-08

    Applicant: CERION TECHNOLOGY INC

    Inventor： REED KENNETH J ,  DIFRANCISCO ALBERT GARY ,  HAILSTONE RICHARD K ,  PROK GARY R ,  ALLSTON THOMAS D

    IPC: B01J23/00 ,  B01J23/10 ,  C10M125/10

    Abstract: A method for forming a structured doped cerium oxide nanoparticle including the steps of forming a first aqueous cerium(lll) reaction mixture, with optional metal/s other than cerium, a base, and a stabilizer; introducing an oxidant to singly oxidize cerium (III), followed by thermal formation of a doped cerium oxide nanoparticle core; then providing a second reaction mixture of one or more metal ions other than cerium, and optionally cerium (III) ions and sufficient cerium (III) oxidant, followed by thermally converting the mixture into a shell around the doped cerium oxide nanoparticle core, wherein the ratio of metal ions in the core differs from the ratio of metal ions in the shell. The disclosed structured doped cerium oxide nanoparticle may exhibit cubic fluorite crystal structure and possess a diameter in the range 1 nm-20 nm. A dispersion of the developed nanoparticle may be used as a fuel additive.

    Method for producing cerium -containing nanoparticles
    2.
    发明专利
    Method for producing cerium -containing nanoparticles 未知

    公开(公告)号：AU2011253488A1

    公开(公告)日：2012-12-20

    申请号：AU2011253488

    申请日：2011-05-13

    Applicant: CERION TECHNOLOGY INC

    Inventor： REED KENNETH J ,  DIFRANCISCO ALBERT GARY ,  PROK GARY R ,  HAILSTONE RICHARD K

    IPC: C01F17/00 ,  C01G25/00 ,  C01G49/00 ,  C10L1/12 ,  C10L10/00

    Abstract: A process for making cerium-containing oxide nanoparticles includes providing an aqueous reaction mixture containing a source of cerous ion, optionally a source of one or more metal ions (M) other than cerium, a source of hydroxide ion, at least one monoether carboxylic acid nanoparticle stabilizer wherein the molar ratio of said monoether carboxylic acid nanoparticle stabilizers to total metal ions is greater than 0.2, and an oxidant at an initial temperature in the range of about 20°C to about 95°C. Temperature conditions are provided effective to enable oxidation of cerous ion to ceric ion, thereby forming a product dispersion of cerium-containing oxide nanoparticles, optionally containing one or more metal ions (M), Ce

    METHOD FOR PRODUCING CERIUM - CONTAINING NANOPARTICLES
    3.
    发明专利
    METHOD FOR PRODUCING CERIUM - CONTAINING NANOPARTICLES 未知

    公开(公告)号：CA2798986A1

    公开(公告)日：2011-11-17

    申请号：CA2798986

    申请日：2011-05-13

    Applicant: CERION TECHNOLOGY INC

    Inventor： REED KENNETH J ,  DIFRANCISCO ALBERT GARY ,  PROK GARY R ,  HAILSTONE RICHARD K

    IPC: C01F17/00 ,  C01G25/00 ,  C01G49/00 ,  C10L1/12 ,  C10L10/00

    Abstract: A process for making cerium-containing oxide nanoparticles includes providing an aqueous reaction mixture containing a source of cerous ion, optionally a source of one or more metal ions (M) other than cerium, a source of hydroxide ion, at least one monoether carboxylic acid nanoparticle stabilizer wherein the molar ratio of said monoether carboxylic acid nanoparticle stabilizers to total metal ions is greater than 0.2, and an oxidant at an initial temperature in the range of about 20°C to about 95°C. Temperature conditions are provided effective to enable oxidation of cerous ion to ceric ion, thereby forming a product dispersion of cerium-containing oxide nanoparticles, optionally containing one or more metal ions (M), Ce1-xMxO2-d, wherein "x" has a value from about 0.0 to about 0.95. The nanoparticles may have a mean hydrodynamic diameter from about 1 nm to about 50 nm, and a geometric diameter of less than about 45 nm.

    STRUCTURED CATALYTIC NANOPARTICLES AND METHOD OF PREPARATION
    4.
    发明专利
    STRUCTURED CATALYTIC NANOPARTICLES AND METHOD OF PREPARATION 未知

    公开(公告)号：CA2792409A1

    公开(公告)日：2011-09-15

    申请号：CA2792409

    申请日：2011-03-08

    Applicant: CERION TECHNOLOGY INC

    Inventor： REED KENNETH J ,  DIFRANCISCO ALBERT GARY ,  HAILSTONE RICHARD K ,  PROK GARY R ,  ALLSTON THOMAS D

    IPC: B22F9/16 ,  B22F1/00 ,  C10L1/12 ,  C10M125/10

    Abstract: A method for forming a structured doped cerium oxide nanoparticle including the steps of forming a first aqueous cerium(lll) reaction mixture, with optional metal/s other than cerium, a base, and a stabilizer; introducing an oxidant to singly oxidize cerium (III), followed by thermal formation of a doped cerium oxide nanoparticle core; then providing a second reaction mixture of one or more metal ions other than cerium, and optionally cerium (III) ions and sufficient cerium (III) oxidant, followed by thermally converting the mixture into a shell around the doped cerium oxide nanoparticle core, wherein the ratio of metal ions in the core differs from the ratio of metal ions in the shell. The disclosed structured doped cerium oxide nanoparticle may exhibit cubic fluorite crystal structure and possess a diameter in the range 1 nm-20 nm. A dispersion of the developed nanoparticle may be used as a fuel additive.

Patent Agency Ranking