Pore Structure and Bifunctional Catalyst Activity of Overlayers Applied by Atomic Layer Deposition on Copper Nanoparticles Article (Faculty180)

cited authors

  • Alba-Rubio, Ana C.; O'Neill, Brandon J.; Shi, Fengyuan; Akatay, Cem; Canlas, Christian; Li, Tao; Winans, Randall; Elam, Jeffrey W.; Stach, Eric A.; Voyles, Paul M.; Dumesic, James A.


  • We present a model system, based on spherical nonporous supports, to facilitate the characterization of supported metal catalysts stabilized by atomic layer deposition (ALD) against sintering and leaching under liquid-phase conditions. Calcination at high temperatures (973 K) produces pores in the ALD overcoat, and we image these pores using scanning transmission electron microscopy and electron energy loss spectroscopy (STEM/EELS). We determine the size of these pores to be ∼1 nm using small-angle X-ray scattering (SAXS). Finally, we demonstrate the use of ALD to synthesize novel bifunctional catalysts by the addition of an acidic oxide layer to the stabilizing overcoat.

publication date

  • 2014

published in

start page

  • 1554

end page

  • 1557


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