Electrochemical Society Letters: Physical and Analytical Electrochemistry - Current Issue http://scitation.aip.org/ Electrochemical Society Letters: Physical and Analytical Electrochemistry - Current Issue Impurity Effects on Oxygen Reduction Electrocatalysis at Platinum Ultramicroelectrodes: A Critical Assessment http://link.aip.org/link/?ESL/13/F1/1&agg=rss Daniel A. Scherson and Yuriy V. Tolmachev<br/> Impurity effects associated with an increase in the rate of mass transport induced by a decrease in the size of electrodes have been examined with emphasis on species capable of undergoing irreversible adsorption. Calculations show that for hemispherical ultramicroelectrodes 50 nm in radius, the fl ... [Electrochem. Solid-State Lett. 13, F1 (2009)] published Wed Nov 18, 2009.