Photocatalytic hydrogen evolution reaction (HER), which produces energy-dense hydrogen fuel from water using solar energy, suggests a way of sustainable energy production. Molybdenum disulfide (MoS2) is a promising photocatalytic material due to its high in-plane carrier mobility, catalytic activity, and visible range bandgap energy. Particularly, monolayer MoS2 exhibits higher photocatalytic activity compared to its bulk counterparts, and its high photocatalytic activity originates from high-energy edge sites. In addition, plasmonic nanostructures are often integrated into photocatalytic material systems to enhance HER efficiency by injecting plasmonic hot-electrons or enhancing optical absorption. The goal of the proposed work is 1) to achieve a material system of atomically thin MoS2 with nanopores and gold nanoparticles (Au NPs) and 2) to demonstrate enhanced HER efficiency by utilizing the unique material properties of MoS2 in combination with plasmonic effects from Au NPs. Throughout this proposed work, a novel way to achieve an atomically thin material system optimized for higher HER efficiency will be demonstrated, and the potential of plasmonically-enhanced, 2D material-based HER will be investigated.