Template-free synthesis of millimeter-scale carbon nanorod arrays on boron-doped diamond with superior glucose sensing performance

Large-scale growth of three-dimensional (3D) carbon nanostructure via a template-free method remains challenging. In this work, a millimeter-scale carbon nanorod array (CNA), via thermal catalysis with nickel as the catalyst, is directly synthesized on the substrate of boron-doped diamond (BDD). Electron microscopies evidence the phenomena of independent growth of a single carbon nanorod and the fusion of two or more nanorods, and demonstrate...