Studies of the adsorption and absorption of hydrogen on nanofilms of Pd formed on Au substrates will be discussed. The electrochemical analog of atomic layer deposition (ALD) has been used to form films with from 0.5 ML to 50 ML thickness. The chemistry used to form the films will be briefly described. The thinner films allowed characterization of the hydrogen waves on Pd, with minimal interference from the absorption process.  To better characterize the dependence of the hydrogen waves as a function of surface structure, single crystal Au substrates have been used to grow the Pd films.  It is evident from these studies that the adsorption of hydrogen is strongly dependent on surface structure, and the history of the electrode.

Pd nanofilm formation on Au single crystal substrates, using electrochemical ALD

244th National Meeting (2012)

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