A 3D porous WP2 nanosheets@carbon cloth flexible electrode for efficient electrocatalytic hydrogen evolution

摘要

Self-standing porous WP2 nanosheet arrays on carbon fiber cloth (WP2 NSs/CC) were synthesized and used as a 3D flexible hydrogen evolution electrode.Because of its 3D porous nanoarray structure,the WP2 NSs/CC exhibits a remarkable catalytic activity and a high stability.By using the experimental measurements and first-principle calculations,the underlying reasons for the excellent catalytic activity were further explored.Our work makes the present WP2 NSs as a promising electrocatalyst for hydrogen evolution and provides a way to design and fabricate efficient hydrogen evolution electrodes through 3D porous nano-arrays architecture.