Patent ID: 7524481
Filing Date: 2009-04-28
Classification: B01J,B82Y,C01G,C10M,Y10S

Abstract:
1. A synthetic method of production of WS 2 fullerene-like nanoparticles and nanostructures from WO 3 metal oxide powder and H 2 and H 2 S reacting gases, said method comprising the steps of: (i) feeding a first mixture of a reacting tungsten oxide powder and an inert gas with a predetermined feeding rate downwardly into the top of a vertical flow line extending into the inside of a vertical chemical reactor such that a lower end of the vertical flow line is located inside the vertical chemical reactor, and providing a flow of a mixture of the H (ii) controlling temperature inside the chemical reactor so as to provide a predetermined temperature profile along the reaction path; and (iii) collecting the formed WS the method thereby providing a solid-gas reaction between the reacting gases and the tungsten oxide powder during the flow through and along the reaction path, resulting in the formation of WO