Conductive Boron Nitride as Promising Catalyst Support for the Oxygen Evolution Reaction

Catalyst support with good conductivity and stability is an eternal pursuit in the search for a high‐performance electrocatalyst. Here, an unusual catalyst support, laser‐modified boron nitride with C, O dopants (L‐BN), for the oxygen evolution reaction is reported. L‐BN exhibits unique advantages for electrocatalysis, namely, high corrosion resistance under oxidizing conditions, enhanced electrical conductivity arising from interlayer B–B dipolar interaction, and strong interaction with IrOx catalyst caused by NCN bonds. As an excellent substrate, L‐BN helps to achieve higher activity and stability than its carbon black counterpart. Conductive boron nitride (L‐BN) is achieved by laser modification of C, O codoped BN nanospheres and the formation of interlaminar B–B dipolar interactions. L‐BN can enhance the catalytic performance of IrOx in the oxygen evolution reaction through electron transfer, outperforming the popular carbon black substrate.