Kinetic effect of Pd additions on the hydrogen uptake of chemically-activated ultramicroporous carbon

Vinay V. Bhat, Cristian I. Contescu, Nidia C. Gallego

Research output: Contribution to journalLetterpeer-review

24 Scopus citations

Abstract

The effect of mixing chemically-activated ultramicroporous carbon (UMC) with Pd nanopowder is investigated. Results show that Pd addition doubles the rate of hydrogen uptake, but does not enhance the hydrogen capacity or improve desorption kinetics. The effect of Pd on the rate of hydrogen adsorption supports the existence of the hydrogen spillover mechanism in the Pd - UMC system.

Original languageEnglish
Pages (from-to)2361-2364
Number of pages4
JournalCarbon
Volume48
Issue number8
DOIs
StatePublished - Jul 2010

Funding

Research supported by the Division of Materials Science and Engineering, Office of Basic Energy Sciences, US Department of Energy. The authors acknowledge many enlightening conversations with Drs. Fred Baker, Jamie Morris, and Takeshi Egami (ORNL), and are thankful to MeadWestvaco Corporation (Charleston, SC) for kindly supplying the UMC sample. This manuscript has been authored by UT-Battelle, LLC, under Contract No. DE-AC05-00OR22725 with the US Department of Energy. The United States Government retains and the publisher, by accepting the article for publication, acknowledges that the United States Government retains a non-exclusive, paid-up, irrevocable, world-wide license to publish or reproduce the published form of this manuscript, or allow others to do so, for United States Government purposes.

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