Figure 4

(a) Top and side views of the most stable adsorption configuration; (b) Gibbs free energy for HER; (c) projected density of states for H atom adsorption on biphenylene and pristine graphene.

(a) Top and side views of the most stable adsorption configuration; (b) Gibbs free energy for HER; (c) projected density of states for H atom adsorption on biphenylene and pristine graphene.