1. Peter A. Rock Thermochemistry Laboratory and NEAT ORU University of California Davis California 95616
2. Department of Metallurgical and Materials Engineering University of São Paulo São Paulo 05508‐030 Brazil
3. Unité de Catalyse et de Chimie du Solide UMR CNRS 8181 Université Lille 1‒Sciences et Technologies Villeneuve d'Ascq Cedex 59655 France