Highly Active Ceria-Supported Ru Catalyst for the Dry Reforming of Methane: In Situ Identification of Ruδ+–Ce3+ Interactions for Enhanced Conversion
ACS Catalysis2019Vol. 9(4), pp. 3349–3359
Citations Over TimeTop 10% of 2019 papers
Zongyuan Liu, Feng Zhang, Ning Rui, Xing Li, Lili Lin, Luis E. Betancourt, Dong Su, Wenqian Xu, Jiajie Cen, Klaus Attenkofer, Hicham Idriss, José A. Rodríguez, Sanjaya D. Senanayake
Abstract
The metal–oxide interaction changes the surface electronic states of catalysts deployed for chemical conversion, yet details of its influence on the catalytic performance under reaction conditions remain obscure. In this work, we report the high activity/stability of a ceria-supported Ru–nanocluster (300 °C). The possible reaction pathways and stable surface intermediates were identified using DRIFTS including ruthenium carbonyls, carboxylate species, and surface −OH groups, while polydentate carbonates may be plain spectators at the measured reaction conditions.
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