Tungsten oxide-type compound having a new crystalline structure and method for preparing same

US10450200B2 · kind B2 · utility

Assignees

• RHODIA OPERATIONS · FR
• CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE · FR
• Sorbonne Universite · FR

Inventors

• Valérie Buissette · Paris, FR
• Thierry Le Mercier · Rosny-sous-Bois, FR
• Julie Besnardiere · Paris, FR
• Sophie Cassaignon · Antony, FR
• David Portehault · Villejuif, FR
• Gilles Wallez · Issy-les-Moulineaux, FR

Key dates

• Filing date: Oct 21, 2014
• Grant date: Oct 22, 2019
• Expiry date: Oct 21, 2034

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01P2004/64
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The compound according to the invention is a compound of formula (1) Ax W1-yMOyO3, wherein A is chosen from the group comprising the Li, Na, NH4, K and H cations, and it is characterized in that x and y verify the relationships 0≤x≤1 and 0≤y≤0.5, and in that it has a crystalline structure of the hexagonal type with a base of WO6 octahedra, said structure having tunnels delimited by 6, 4 and 3 of said octahedra and oriented along the axis c.