MOLYBDENUM TRIOXIDE POWDER AND METHOD FOR PRODUCING SAME

    公开(公告)号:US20220340443A1

    公开(公告)日:2022-10-27

    申请号:US17762726

    申请日:2020-09-24

    Abstract: A molybdenum trioxide powder contains an aggregate of primary particles having a β crystal structure of molybdenum trioxide. The molybdenum trioxide powder has a MoO3 content ratio of 99.6% or more measured by X-ray fluorescence (XRF), and has an average particle diameter of the primary particles of 1 μm or less. A method for producing the above molybdenum trioxide powder includes vaporizing a molybdenum oxide precursor compound to form molybdenum trioxide vapor, and cooling the molybdenum trioxide vapor.

    CERIA PARTICLES AND METHOD FOR PRODUCING THE SAME

    公开(公告)号:US20240262705A1

    公开(公告)日:2024-08-08

    申请号:US18567006

    申请日:2021-06-11

    Abstract: Ceria particles contain molybdenum. In the ceria particles, the molybdenum may be unevenly distributed in a surface layer of the ceria particles. A crystallite diameter of a [100] plane of the ceria particles may be 250 nm or more. A crystallite diameter of a [101] plane of the ceria particles may be 300 nm or more. A median diameter D50 of the ceria particles calculated by a laser diffraction/scattering method may be 5.00 μm or more and 1000.00 μm or less. A method for producing the ceria particles includes calcining a cerium compound in presence of a molybdenum compound. The molybdenum compound may be at least one compound selected from a group including molybdenum trioxide, lithium molybdate, potassium molybdate and sodium molybdate. In the method for producing the ceria particles, a calcination temperature may be 800° C. or higher and 1600° C. or lower.

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