School of Advanced Materials;
Peking University;
Shenzhen Graduate School;
Shenzhen 518055;
Guangdong;
China;
School of Advance Manufacturing Engineering;
Chongqing University of Posts and Telecommunications;
Chongqing 400065;
China;
Carbon-encapsulated tungsten carbide; Solid-state synthesis; Self-supported nanoarrays electrode; Hydrogen evolution reaction; First-principles calculations;