Effect of Reduction Methods on Ag/AgX Reference Electrodes Prepared by Thermal Dip-coating Method

Ag/AgX reference electrodes were prepared by thermal dip-coating with hydrogen reduction and electrochemical reduction method.The microstructure and electrochemical performance were studied using SEM,EDX ,EIS,and constant current polarization.The results show that the different reduction methods had obvious effect on the performance of the Ag/AgX electrodes.The electrode prepared by electrochemical reduction had smaller internal resistance,larger active surface area and better anti-polarization ability than the electrode by hydrogen reduction.But there was no obvious difference in the stability and temperature coefficient between the electrodes prepared by different reduction methods.