US 12,735,328 B2 · Niobium oxide particles and method for producing niobium oxide particles

Abstract

Niobium oxide particles which have a controlled crystal shape and exhibit excellent characteristics are provided. The niobium oxide particles include molybdenum. The niobium oxide particles preferably have a polyhedral, columnar or acicular shape. The MoO3 content (M1) measured by XRF analysis of the niobium oxide particles is preferably 0.1 to 40 mass % relative to the niobium oxide particles taken as 100 mass %. A method for producing the niobium oxide particles described above includes calcining a niobium compound in the presence of a molybdenum compound.

Claims9

Dependent claims

Niobium oxide particles comprising molybdenum oxide,

wherein a MoO3 content (M1), measured by XRF analysis, is 0.1 to 40 mass % based on 100 mass % of the niobium oxide particles,
wherein the molybdenum oxide is enriched in a superficial layer of the niobium oxide particles, and
wherein a superficial enrichment, represented by a ratio (M2/M1) of a MoO3 content (M2) measured by XPS surface analysis to the MoO3 content (M1), is 1.01 to 8.0.

Dependencies are inferred from the claim text.

Facts

Application

18/254,059Filed 8 Dec 2020

Published

US 2024/0092653 A121 Mar 2024

Granted

15 Sep 2026

Term ends

Not estimatedThe source records don’t support an estimate.

Classification9 codes

C01G 33/00
Compounds of niobium
C01G 39/02
Compounds of molybdenum: oxides; Hydroxides
C01P 2002/85
Defined by measured data other than those specified in group C01P2002/70: by xps, edx or edax data
C01P 2004/54
Particle morphology: particles characterised by their aspect ratio, i.e. the ratio of sizes in the longest to the shortest dimension

Niobium oxide particles and method for producing niobium oxide particles

Life of this patent

Niobium oxide particles and method for producing niobium oxide particles

Life of this patent

Abstract

Claims9