  An effective method for increasing the electrocatalytic activity of metallic
glasses (MGs) in hydrogen evolution reaction (HER) is reported. This method
applies a noble metal hybridization strategy to design a highly reactive
catalyst for alkaline HER based on MGs with a nano-porous structure. The porous
structure provides an abundance of active sites and exposes a large specific
surface area to the electrolyte, thus effectively improving the activity of the
HER catalysts. The doping of Au element can create electronic defects, adjust
the electronic structure, change the electronic interaction, introduce lattice
distortion, regulate mixing entropy, and improve the electrocatalytic
performance of the catalyst. All these properties make np-AlMnYNiCoAu catalyst
a potential electrode for alkaline HER. Significantly, we find that the high
mixing entropy can enhance the HER performances. The present work could lead to
a new approach to further develop environmentally friendly amorphous
electrocatalyst with high efficiency and excellent stability for HER in
alkaline solution.
