Research Article Cite This: ACS Catal. 2018, 8, 9520−9528
pubs.acs.org/acscatalysis
Trapping of Metal Atoms and Metal Clusters by Chabazite under Severe Redox Stress Manuel Moliner,*,† Jadeene Gabay,‡ Chris Kliewer,‡ Pedro Serna,*,‡ and Avelino Corma*,† †
Instituto de Tecnología Química, Universitat Politècnica de València-Consejo Superior de Investigaciones Científicas, Avenida de los Naranjos s/n, 46022 València, Spain ‡ ExxonMobil Research and Engineering Co., Annandale, New Jersey 08801, United States
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S Supporting Information *
ABSTRACT: The remarkable ability of Al-containing CHA zeolite to trap and stabilize noble single-metal atoms and metal clusters has facilitated the design of sinter-resistant materials for catalytic applications that require severe reaction conditions. At high temperatures in O2, volatile MOx species appear to be fixated by the zeolite Al centers to prevent Ostwald-ripening sintering mechanisms, whereas small metal clusters (
