Fig. 5From: Defect and Doping Engineered Penta-graphene for Catalysis of Hydrogen Evolution ReactionElectronic band structure, total and projected DOS of the defect and doped PG. a Pristine PG, b VC-UP C2 vacancy site, c VC-UPS-doped and d VC-UPP-doped, respectively. The structures of c and d as shown in Fig. 3. They are calculated by using PBE functional, the Fermi level is shifted to 0.00 eVBack to article page