Why does Ni foam dissolve in acidic solution after pre-treated with 6M HCl?

I would like to conduct electroplating at -1.8V in a pH=2 solution that contained FeCl3, InCl3, thioacetamide, and phosphate acid. Before the electrolysis, I ultrasonicated Ni foams in 6M HCl,...

06 October 2021 9,848 1 View