The fundamental interest in and commercial applications of cerium oxide as a catalytic material have accelerated rapidly in recent years. This progression has been tracked from the seminal review article by Trovarelli in 1996 [1] through two subsequent books in 2002 [2] and 2013 [3]. In the most recent volume Delgado et al. identified many catalytic applications of ceria-based materials [4]. These include pollution abatement, steam and dry reforming of hydrocarbons and oxygenates, CO oxidation and preferential CO oxidation in the presence of H2 (PROX), water–gas shift (WGS), conversion of syngas to alcohols, C–C coupling, aldol condensations, partial oxidation and selective hydrogenation. Organic syntheses catalyzed by ceria that involve more complex reactants and products have been reviewed by Vivier and Duprez [5]. Of these various applications the use of ceria, or mixed oxides containing ceria, in automotive three-way catalysts (TWC) has been the most widespread and technologically successful [4].