Extended Data Fig. 3: The effect of surface hydrogenation on B-B bonds with different cluster sizes.
From: Room-temperature hydrogen storage of boron nanoclusters

a, Structures of B slab, B528, B228 and B72 after hydrogenation of Bspike atoms. b, Comparison of the integral value of crystal orbital Hamiltonian population (ICOHP) between B-B Bonds in surface hydrogenated Bslab, B528, B228 and B72.