Oxygen sorbent compositions and methods of using same

US7338549B2 · kind B2 · utility

Assignee

• The BOC Group Limited · US

Inventors

• Martin Bulow
• Jürgen Böer · Nordhausen, DE
• Wolfgang Burckhardt · Hermsdorf, DE
• Hans Guth · Leverkusen, DE
• Helmut Ullmann · Freital, DE
• Vladimir V. Vashook · Dresden, DE

Key dates

• Filing date: Dec 6, 2004
• Grant date: Mar 4, 2008
• Expiry date: Sep 21, 2025

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S502/525
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Compositions and methods useful for oxygen sorption and other uses are presented, the compositions A composite material comprising components (A) and (B), wherein component (A) is selected from crystalline ceramic materials capable of forming a stable, reversible perovskite crystal phase at elevated temperatures (T>500° C.), and combinations thereof, and component (B) comprises a metal selected from rhodium (Rh), platinum (Pt), palladium (Pd), nickel (Ni) and silver (Ag), and combinations and alloys of these metals.