Recently, I was trying to deposit AgCl into the surface of silver wire to make Ag/AgCl electrodes. The silver wire I used is 99% impurities and 0,3 mm in diameter. I used KCl 1 M & 3 M as electrolyte and 9 volts of voltage apply to the wire. From various journal I read, it's always stated that silver wire must connected to copper wire to conduct the current to start electroplating process.

What if i connect the silver wire directly to the power source?