Adsorbed hydrogen and its effects on double-layer structure

4 ADSORBED HYDROGEN AND ITS EFFECTS ON DOUBLE-LAYER STRUCTURE 

Cyclic voltammetric studies of Pt and Rh electrodes in aqueous acid solution show two kinds of adsorbed hydrogen at potentials just anodic of hydrogen evolution. As the potential is made increasingly positive, the 

Adsorption bands from the complex between water and weakly bound hydrogen (after ref. 55) 

EMIRS provided an elegant insight into the structure of the doublelayer at platinum or rhodium electrodes. These papers are also of interest in that the authors also reported employing a modulated (cf. the later work of Kunimatsu [67, 68]) form of linear sweep voltammetry to study the reflectivity (ARjR) change of an electrode at a particular wavenumber as a function of potential. 

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