Assays were completed at ALS Global Laboratory, North Vancouver, BC as follows: *Cu-OG62: Standard assay, aqua regia solvent for copper oxides and sulphides, Four acid digestion and ICP finish 0.4g ...

Initially, the fabricated copper (Cu) NWs have low crystallinity and form a Cu oxide layer on the surface, hindering interaction with oxygen. The annealing process reshapes the Cu NWs from a ...