Synthesis of Copper Oxide Aided by Selective Corrosion in Cu Foils

Table 1

Parameters for selective corrosion in Cu foils.

Sample	Volume (mL)		Immersion time (min)
	FeCl3	H2O
CS-1	5	2.5	2
CS-2	2.5	2.5	4
CS-3	2.5	5	6