Extended Data Fig. 3: HER stability of the (Pt0.15WTaFe0.15Ni)Cx/CNT film.
From: Nanoconfined impulse synthesis of high-entropy nanocarbides for active and stable electrocatalysis
a,b, AC-TEM images of the (Pt0.15WTaFe0.15Ni)Cx/CNT film before and after the long-term test, respectively. c, XRD patterns of the (Pt0.15WTaFe0.15Ni)Cx/CNT film before and after the long-term test at 2000 mA cm−2 for ~600 h. d, Comparison of the long-term stability and maximum stable current density of different HER catalysts4,34,35,54,71,72,73,74,75,76,77.
