Transmenu powered by JoomlArt.com - Mambo Joomla Professional Templates Club

I made a simple single membraneless chamber fuel cell.  For economics and ease, I started with aluminum foil anode and cathode.  The greatest voltage I read on my simple digital multi-meter was ~200mV.  After further reading I found some carbon replacement brushes with copper leads.  I attached insulated copper wire and tried to minimize the copper exposed.  I used these for both the cathode and anode and measured a voltage up to ~500mV.  I am pleased with this increase in performance, however I'm curious if the copper is being consumed to create this added voltage.  Am I correct in assuming that as long as the cathode and anode are the same material, that the voltage increase is not caused by the consumption of the electrode material?  The medium (correct term?) is dirt,vinegar,sugar.  If my assumption is correct, can I attached the carbon/copper to aluminum foil to increase my surface area to increase current?