US Patent Issued to Nanocomp Technologies on Nov. 25 for "Iron removal from carbon nanotubes and metal catalyst recycle" (New Hampshire Inventor)

ALEXANDRIA, Va., Nov. 25 -- United States Patent no. 12,479,729, issued on Nov. 25, was assigned to Nanocomp Technologies Inc..

"Iron removal from carbon nanotubes and metal catalyst recycle" was invented by David Gailus (Merrick, N.H.).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure provides a method for purifying nanostructured material comprising carbon nanotubes, metal impurities and amorphous carbon impurities. The method generally includes oxidizing the unpurified nanostructured material to remove the amorphous carbon and thereby exposing the metal impurities and subsequently contacting the nanostructured material with carbon monoxide to volatilize the metal impurities and thereby ...