Hydrogen, regarded as a promising energy carrier to alleviate the current energy crisis, can be generated from hydrogen evolution reaction (HER), whereas its efficiency is impeded by the activity of catalysts. Herein, effective strategies, such as strain and interfacial engineering, are imposed to tune the catalysis performance of novel two-dimensional (2D) phosphorus carbide (PC) layers using first-principle calculations. The findings show that P site in pristine monolayer PC (ML-PC) exhibits higher HER performance than C site. Intriguingly, c...
