FACETS (Dec 2016)

Hydrogen absorption in palladized MCM-41

  • Colin P. Guthrie,
  • Eric J. Reardon

DOI
https://doi.org/10.1139/facets-2016-0034
Journal volume & issue
Vol. 1
pp. 248 – 262

Abstract

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Hydrogen absorption by palladium (Pd) in Pd/MCM-41 was studied at 298.2 ± 0.1 K and between 0.5 and 1.0 atm PH2. Mass percent Pd loadings of 0.81%, 1.10%, 1.16%, and 2.30% of total Pd/MCM-41 were used. Absorption was measured in gas-tight stainless steel cells equipped with computer-logged pressure transducers. The average maximum hydrogen absorption for all samples was 0.85 ± 0.18 H/Pd. An apparent trend of increasing hydrogen absorption as the mass percent loading of Pd increased was determined to be non-significant. Similar experiments using Pd black showed a lower absorption of 0.79 ± 0.09 H/Pd.

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