Patent ID: 11888167
Assignee: NANYANG TECHNOLOGICAL UNIVERSITY
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 6:
7. A method for making a catalyst for rechargeable energy storage devices according to claim 1, the method comprising the steps of:
forming carbon nanotubes on a template, wherein the carbon nanotubes have edges and interlayer spaces and are axially aligned;
doping the carbon nanotubes with N and P; and
providing a coating of first transition metal and a second transition metal precursors; and
annealing the first and second transition metal precursors to form bimetal centers on carbon nanotubes, wherein the bimetal centers are catalytically active sites principally located at the edges or the interlayer spaces of the carbon nanotubes, wherein the interlayer spaces are separated by at least 0.4 nm.