Materials and methods 2.1. Air-cathodes fabrication The activated carbon air cathodes (ACACs) consisted of a catalyst layer (CL) and a gas diffusion layer (GDL) with a nickel foam sheet as the current collector. The CL was prepared by pasting a
Materials and methods2.1. Air-cathodes fabricationThe activated carbon air cathodes (ACACs) consisted of a catalystlayer (CL) and a gas diffusion layer (GDL) with a nickel foamsheet as the current collector. The CL was prepared by pasting a