The Ni-deposited carbon felt as substrate for preparation of Pt-modified electrocatalysts: Application for alkaline water electrolysis

A Ni-modified carbon felt (C) electrode (C/Ni) was used as a substrate for preparation of Pt-modified electrode in view of its possible application as electrocatalytic material for the hydrogen evolution activity. The prepared electrode was characterized by scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX) and cyclic voltammetry (CV) techniques. The hydrogen evolution activity of the electrode was assessed by cathodic current–potential curves and electrochemical impedance spectroscopy (EIS) techniques. It was found that the modification of Ni-deposited C by loading low amount of Pt could enhance the hydrogen evolution activity of the electrode.

Pt was loaded over the previously Ni-deposited carbon felt substrate and characterized in view of its possible application as electrocatalytic material for the hydrogen evolution activity.Figure optionsDownload as PowerPoint slideHighlights
► Pt was loaded over the previously Ni-deposited carbon felt.
► The catalyst prepared has spacious volume.
► The Pt loading can further enhance the HER activity of Ni-deposited carbon felt.