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US 12,497,303 B2Granted
Molybdenum trioxide powder and method for producing same
AssigneeDIC Corporation
InventorsHironobu Oki, Yusuke Kano, Jianjun Yuan
Life of this patent
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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.
Claims8
A molybdenum trioxide powder comprising:
- an aggregate of primary particles having a β crystal structure of molybdenum trioxide, wherein
- the molybdenum trioxide powder has a MoO3 content ratio of 99.6% or more measured by X-ray fluorescence (XRF), an average particle diameter of the primary particles of 1 μm or less, and a specific surface area of 30 m2/g to 100 m2/g measured by a BET method,
- in a radial distribution function obtained from an extended X-ray absorption fine structure (EXAFS) spectrum of a K absorption edge of molybdenum, a ratio (I/II) of intensity I of a peak caused by Mo—O to intensity II of a peak caused by Mo—Mo is more than 1.1.
Dependencies are inferred from the claim text.