An innovative, nanostructured composite, anode electrocatalyst, material has been developed for the electrolytic splitting of (100%) H2S feed content gas operating at 135 kPa and 150 degrees C. A new class of anode electrocatalyst with general composition, RuO2-CoS2 has shown great stability and desired properties at typical operating conditions. This configuration showed stable electrochemical operation over the period of 24 h and also exhibited a maximum current density of (0.019 A/cm(2)). The kinetic behaviors of various anode-based electrocatalysts demonstrated that, exchange current density, which is a direct measure of the electrochemical reaction, increased with RuO2-CoS2-based anodes. Moreover, high levels of feed utilization were possible using these materials. Electrochemical performance, current density, and sulfur tolerance were enhanced compared to the other tested anode configurations. The structural, microstructural and surface behavior of RuO2-CoS2 anode electrocatalyst was investigated in detail. (C) 2010 Professor T. Nejat Veziroglu. Published by Elsevier Ltd. All rights reserved.