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Issue 18, 2016
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Design and synthesis of model and practical palladium catalysts using atomic layer deposition

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Abstract

We investigated the “one-batch” synthesis of model and practical palladium catalysts using atomic layer deposition (ALD). Two types of model catalysts and one type of powder-based nanocatalyst were synthesized simultaneously by ALD under viscous flow conditions. In addition, Pd/TiO2(110) model catalysts were prepared by the identical ALD process but under ultrahigh vacuum conditions. Because of the self-limiting surface reaction that defines ALD, the local structure of all the Pd catalysts were essentially the same as confirmed by a suite of microscopic and spectroscopic characterization techniques. A comprehensive understanding of the Pd-based catalysts was achieved by applying both surface science probes and advanced synchrotron techniques, and by strategically selecting the catalyst substrate best suited for each characterization. Both X-ray absorption spectroscopy and X-ray resonant photoelectron spectroscopy suggested that Pd only weakly interacted with the TiO2 support. The one-batch synthesis approach facilitated by ALD can potentially bridge the “synthesis gap” between model catalysts and practical catalysts.

Graphical abstract: Design and synthesis of model and practical palladium catalysts using atomic layer deposition

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Publication details

The article was received on 29 Mar 2016, accepted on 04 May 2016 and first published on 04 May 2016


Article type: Paper
DOI: 10.1039/C6CY00682E
Citation: Catal. Sci. Technol., 2016,6, 6845-6852
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    Design and synthesis of model and practical palladium catalysts using atomic layer deposition

    Z. Lu, O. Kizilkaya, A. J. Kropf, M. Piernavieja-Hermida, J. T. Miller, R. L. Kurtz, J. W. Elam and Y. Lei, Catal. Sci. Technol., 2016, 6, 6845
    DOI: 10.1039/C6CY00682E

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