1. Boreskov Institute of Catalysis, Siberian Branch of Russian Academy of Sciences, Novosibirsk, 630090 Russia, CNRS-PROMES, Processes Materials and Solar Energy Laboratory, Rambla de la Thermodynamique, Tecnosud, 66100 Perpignan Cedex, France, and Laboratoire de Physique Quantique and UMR CNRS 7142, Ecole Supérieure de Physique et de Chimie Industrielles (ESPCI), 75231 Paris Cedex 05, France