Boosting Synergy of Polymetal Phosphides by Core‐Shell Design of Prussian Blue Analogue Precursors as Electrocatalysts for Water Splitting

Abstract

Oxygen and hydrogen evolution reactions (OER and HER) are crucial for electrochemical water splitting, which is however hindered by the high cost of noble metal catalysts. Here, we present that by designing the core-shell distribution of Prussian blue analogues

Evaluation of Polymetallic Phosphide Cathodes for Sodium-Air Batteries by Distribution of Relaxation Time

“…As shown in Figure , in a concentration-gradient PBA (g-CoNiFe-PBA), the content of cobalt increases from the core to the outer surface. Such design helps to improve the structural stability of the polymetallic phosphide nanocubes because the surface CoFe-PBA component is more resistant to the phosphidation thermal treatment . Moreover, the catalytic activity of the surface sites can be strongly influenced by the components of the sublayers.…”

“…Such design helps to improve the structural stability of the polymetallic phosphide nanocubes because the surface CoFe-PBA component is more resistant to the phosphidation thermal treatment. 33 Moreover, the catalytic activity of the surface sites can be strongly influenced by the components of the sublayers. In comparison, homogeneous CoNiFe-P was also prepared by using the same method as a counterpart sample, with all elements distributed uniformly through the nanocubes.…”