Oxidation of graphene in an O3 flow leads to the formation of energy-minimizing O-clusters on graphene. These clusters yield a pore at their core upon gasification. We recently reported a simplified process of decoupling pore nucleation and expansion involving exposing graphene to O3 followed by heat treatment or light exposure. However, this approach has been limited to preparing small coupons. Implementing this concept for large-area PG requires developing a largearea reactor with a uniform reaction zone and the development of a dedicated protocol for incorporating uniform pores.