A Deprotection?free Method for High?yield Synthesis of Graphdiyne Powder with In Situ Formed CuO Nanoparticles

With a direct band gap, superior charge carrier mobility, and uniformly distributed pores, graphdiyne (GDY) has stimulated tremendous interest from the scientific community. However, its broad application is greatly limited by complicated multistep synthesis process including complex deprotection of hexakis-[(trimethylsilyl)ethynyl]benzene (HEB-TMS) peeling GDY substrates. Here, we describe deprotection-free strategy to prepare powder directly using HEB-TMS as monomer. When CuCl was used catalysts in DMF solvent, yield reached ?100 %. More interestingly, dispersed CuO nanoparticles with an average diameter ?2.9 nm were situ formed on after reaction. The prepared CuO/GDY demonstrated excellent co-catalyst for photocatalytic hydrogen evolution, comparable state-of-art Pt co-catalyst. approach will widen use facilitate scaling up industrial level.