What will the results be if I electrolyzed brine with these materials?

I have tried electrolyzing saltwater (brine) with copper electrodes, but I got a rusty sludge and hydrogen being produced at the anode. I read about it and it is just dissolved copper, possibly oxidized. What will the results be, if I used the following materials?


* Aluminium foil
* Iron
* Pencil graphite


