Bivalent ability for charge transfer in process of hydrogen interaction with surfaces of transition metals |
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Institution: | Institute of Physical Chemistry, Polish Academy of Sciences, ul. Kasprzaka 44/52, 01-224 Warszawa, Poland |
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Abstract: | The ability for bivalent charge transfer (CT) during hydrogen adsorption on transition metal surfaces and in the course of transition metal hydride formation is discussed. The change of the dipole moment of hydrogen adatoms, caused by transition from a strongly bound adsorption state to a weakly bound state, is demonstrated. The possibility of the CT reversion between the hydrogen adsorbate and the transition metal adsorbent, caused by a change of the surface structure, is described. The CT within the adsorbate, corresponding to the distinguished steps of the process of transition metal hydride formation, is shown. |
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Keywords: | Hydrogen adsorption Transition metal hydrides Surface potential measurements |
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