Patent ID: 11905607
Assignee: THE HONG KONG POLYTECHNIC UNIVERSITY
Field: Surface technology, coating (Chemistry)
Classification: CPC C | IPC C

Claim 15:
16. The method of claim 15, wherein said forming the cathode with the step-facet-rich copper catalyst thereon comprises:
dispersing the solid step-facet-rich copper catalyst into a mixed solution containing water, isopropyl alcohol and an alkaline ionomer solution;
mixing the solid step-facet-rich copper catalyst with the mixed solution by sonication for about an hour until the step-facet-rich copper catalyst-containing ink composition is formed;
coating the step-facet-rich copper catalyst-containing ink composition onto a carbon paper with a microporous carbon gas diffusion layer;
drying the coated step-facet-rich copper catalyst-containing ink composition on the carbon paper in vacuum for about an hour.