Patent ID: 9295979
Filing Date: 2016-03-29
CPC Classification: B01J,C01B,H01M,Y02E

Claim Text:
1. A method of forming particles of a transition metal carbide compound on larger particles of graphite; the method comprising: dispersing particles of a carbon-based macro-porous anion exchange resin in a volume of an aqueous solution of a transition metal compound to exchange anions of the transition metal from the solution onto active ion exchange sites on molecular chains of particles of an anion exchange resin to obtain a transition metal content in and on the particles of the anion exchange resin, the anion exchange resin having anions at the active ion exchange sites on the molecular chains of the resin which are exchangeable with anions of the transition metal from the solution; dispersing particles of the transition metal-containing resin particles in a volume of an aqueous solution of a compound of a metal, for catalyzing carbonization of the resin particles, to deposit anions of the catalyst metal into the resin particles; heating the transition metal containing and catalyst metal-containing resin particles to initiate carbonization of the resin particles; further heating the particles to a higher temperature to complete carbonization and graphitization of the initial resin material and to form particles of transition metal carbide compound on larger formed particles of graphite; and removing catalyst metal material from the graphite to leave a composite material consisting essentially of particles of transition metal carbide compound on larger graphite particles, the metal carbide particles having maximum average dimensions up to about fifteen nanometers.