Patent ID: 8192897

Claim:
A method for preparation of a transition metal electroplated porous carbon nanofiber composite comprising: providing an anode comprising a transition metal plate and a cathode comprising a porous carbon nanofiber with specific surface area from 500 to 3000 m 2 /g, pore volume from 0.1 to 2.0 cc/g and diameter from 10 to 500 nm supported on a conductive support in an electroplating bath; and applying an electrical current of 0.01 to 5.0 A/m 2 between the anode and the cathode for 15 to 300 seconds; wherein the transition metal electroplated porous carbon nanofiber composite has a hydrogen storage capacity in the range of from 0.01 to 3 weight %, and a transition metal dispersion ratio, relative to the external specific surface area of the support, in the range of from 0.01 to 50 area %.