Copper Electroplating on Graphite Powders and Copper Content Measurement

Graphite powders were coated with copper by copper electroplating method.The effect of concentrated sulfuric acid addition,graphite powder addition,current density,and copper electroplating time were studied.The copper content measuring method was studied,too.The results indicate,adding 8 g CuSO4·5H2O,20 mL concentrated sulfuric acid,and 5 g pretreated graphite powders in 800 mL distilled water,which is stirred 05 min every 5 to 10 min,and when electroplating current is 9 A·dm-2 (or 21 A·dm-2) and time is 60 min (or 20 min),the copper electroplating effect is excellent.After the electroplated graphite powders are intensively oxidized in 900 ℃,the copper content could be obtained by calculating the mass before and after oxidation.