Preparation of nanoporous metal foam from high nitrogen transition metal complexes

US7141675B2 · kind B2 · utility

Assignee

• LOS ALAMOS NATIONAL SECURITY, LLC · US

Inventors

• Bryce C. Tappan · Santa Fe, US
• My Hang V. Huynh · Los Alamos, US
• Michael A. Hiskey · Los Alamos, US
• Steven F. Son · Los Alamos, US
• David M. Oschwald · Santa Fe, US
• David E. Chavez · Los Alamos, US
• Darren Naud · Los Alamos, US

Key dates

• Filing date: Oct 12, 2004
• Grant date: Nov 28, 2006
• Expiry date: Jan 25, 2025

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S977/773
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Nanoporous metal foams are prepared by ignition of high nitrogen transition metal complexes. The ammonium salts of iron(III) tris[bi(tetrazolato)-amine], cobalt(III) tris(bi(tetrazolato)amine), and high nitrogen compounds of copper and silver were prepared as loose powders, pressed into pellets and wafers, and ignited under an inert atmosphere to form nanoporous metal foam monoliths having very high surface area and very low density.