A Facile and Controllable, Deep Eutectic Solvent Aided Strategy for Synthesis Graphene Encapsulated Metal Phosphides for Enhanced Electrocatalysis Overall Water Splitting
In this paper, we proposed a new strategy to obtain graphene encapsulated Ni2P by simple annealing treatment of designed deep eutectic solvent (DES). Ni2P@graphene composite was taken as an example and prepared by applying the proposed strategy. The composition and structure of the encapsulated structures can be controlled by adjusting the component and mole ratio of the precursor DES. The obtained Ni2P@graphene composite has excellent overall water splitting activity as electrode, and a water splitting current of 10 mA·cm-2 can be achieved at applying only 1.51 V. More importantly, the proposed strategy can be extrapolated for preparation of other encapsulated structures.