Nanoporous cobalt and copper metal foam made by combustion synthesis

Citation

(2006), "Nanoporous cobalt and copper metal foam made by combustion synthesis", Anti-Corrosion Methods and Materials, Vol. 53 No. 5. https://doi.org/10.1108/acmm.2006.12853ead.001

Nanoporous cobalt and copper metal foam made by combustion synthesis

Nanoporous cobalt and copper metal foam made by combustion synthesis

Keywords: Metals, Heat engineering, Foams

A flexible, general approach to the formation of a wide range of nanoporous metals not currently accessible by state-of-the-art nanoscience has reportedly been developed at Los Alamos National Laboratory, Los Alamos, NM. Foams were formed by self-propagating combustion synthesis of novel transition-metal complexes containing high-energy nitrogen ligands. The metals had differing chemistries and crystal structures, and included iron, cobalt, copper, and silver. The complexes were pressed into cylindrical pellets ~6mm in diameter by 6mm long, and ignited in a nitrogen or argon atmosphere.

The structural characteristics (surface area, pore size, density) of the metal foams varied with composition and as a function of precursor chemistry (number of ligands) and overpressure during combustion. These foams have densities as low as 0.011g/cm³; and surface areas as high as 270m²/g. For further information contact: Bryce Tappan, e-mail: btappan@lanl.gov; web site: www.lanl.gov.