| abstract |
The invention provides a composite electrode, which belongs to the technical field of nanomaterials. The composite electrode of the present invention has a layered nano-needle array structure, with nickel foam as the base and multi-walled carbon nanotube-graphene nanoribbons as the inner layer, and the multi-walled carbon nanotube-graphene nanoribbons are loaded on the On the surface of the nickel foam, a nano-needle array formed by Co 3 O 4 is used as the outer layer. The outer wall of the composite electrode provided by the invention is expanded into MWCNTs-GONRs, so that one-dimensional CNTs are interspersed and wound between two-dimensional GONRs sheets, effectively avoiding the agglomeration of GONRs and forming a unique 3D structure, which can effectively increase the ratio surface area and increase the electron transport rate. |