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Atomically Precise Strategy To A PtZn Alloy Nanocluster Catalyst For The Deep Dehydrogenation Of N-Butane To 1,3-Butadiene

Jeffrey Camacho-Bunquin, M. Ferrandon, H. Sohn, A. J. Kropf, Ce Yang, J. Wen, Ryan A Hackler, C. Liu, G. Celik, C. Marshall, P. Stair, P. Stair, M. Delferro
Published 2018 · Materials Science

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The development of on-purpose 1,3-butadiene (BDE) technologies remains an active area in catalysis research, because of the importance of BDE in industrial polymer production. Here, we report on a nonoxidative dehydrogenation catalyst for the production of BDE prepared by atomically precise installation of platinum sites on a Zn-modified SiO2 support via atomic layer deposition (ALD). In situ reduction X-ray absorption spectroscopy (XAS), X-ray photoelectron spectroscopy (XPS), CO chemisorption, and high-angle annular dark-field (HAADF) scanning transmission electron microscopy (STEM) imaging of activated PtZn/SiO2, revealed the formation of a uniform, well-distributed subnanometer- to nanometer-sized PtZn (1.2 ± 0.3 nm) alloy as the active catalytic species.

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