THE MECHANISM OF SURFACE MODIFICATION OF A MCFC ANODE

In this paper the anodic polarization performance of a pure nickel ele ctrode and a nickel electrode modified by electrodeposition of niobium have been investigated. It is found that the anodic polarization char acteristics of the nickel electrode is improved significantly by the d eposition of niobium. The improvement is partially attributed to the i ncrease in surface area of the nickel electrode and the increase in el ectrocatalytic activity, but is caused mainly by improvement in the we ttability of the electrode. (C) 1998 Elsevier Science S.A.