| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 186228 | Electrochimica Acta | 2014 | 5 Pages |
•Fe(II) oximehydrazonate bis-clathrochelates are electrocatalysts for H2 production.•Dependence of electrocatalytic 2H+/H2 process on pKa of H-acid is observed.•General kinetic scheme of 2H+/H2 process persists irrespective of source of H+ ions.•Protonation of two electrochemically generated iron(I) centers is rate-limiting stage.
The kinetic study of the electrocatalytic hydrogen evolution reaction (HER) in the presence of the α-oximehydrazonate iron(II) bis-clathrochelates in different media (including aqueous solutions) with various H-acids as the source of H+ ions showed that the rate-limiting stage of such electrocatalytic 2H+/H2 reaction is the protonation of two encapsulated electrochemically generated iron(I) metallocenters and the general kinetic scheme of this process persists irrespective of a source of H+ ions.
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