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Alumina Over-coating on Pd Nanoparticle Catalysts by Atomic Layer Deposition: Enhanced Stability and Reactivity

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Abstract

ALD Alumina was utilized as a protective layer to inhibit the sintering of supported nano-sized ALD Pd catalysts in the methanol decomposition reaction carried out at elevated temperatures. The protective ALD alumina layers were synthesized on Pd nanoparticles (1–2 nm) supported on high surface area alumina substrates. Up to a certain over-coat thickness, the alumina protective layers preserved or even slightly enhanced the catalytic activity and prevented sintering of the Pd nanoparticles up to 500 °C.

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Acknowledgments

The work at Argonne National Laboratory was supported by the U.S. Department of Energy, BES-HFI, Chemical Sciences under Contract DE-AC-02-06CH11357. The work at Northwestern University was financially supported by The Dow Chemical Company under the Dow Methane Challenge Award.

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Authors and Affiliations

  1. Chemical Science and Engineering Division, Argonne National Laboratory, Argonne, IL, 60439, USA

    Hao Feng & Peter C. Stair

  2. Energy Systems Division, Argonne National Laboratory, Argonne, IL, 60439, USA

    Junling Lu & Jeffrey W. Elam

  3. Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA

    Peter C. Stair

Authors
  1. Hao Feng
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  2. Junling Lu
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  3. Peter C. Stair
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  4. Jeffrey W. Elam
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Corresponding author

Correspondence to Jeffrey W. Elam.

Additional information

H. Feng, J. Lu contributed equally to this work

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Feng, H., Lu, J., Stair, P.C. et al. Alumina Over-coating on Pd Nanoparticle Catalysts by Atomic Layer Deposition: Enhanced Stability and Reactivity. Catal Lett 141, 512–517 (2011). https://doi.org/10.1007/s10562-011-0548-8

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  • DOI: https://doi.org/10.1007/s10562-011-0548-8

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