Synthesis and application of graphdiyne-based materials for advanced chemical sensors

Graphdiyne (GDY), with a highly conjugated and tunable molecular structure, holds great promise in various sensors due to its unique physicochemical features such as high specific surface area, adjustable band gap, excellent conductivity, and superior stability. Although GDY has been investigated both theoretically and experimentally in various sensors, a comprehensive understanding on the structure-property correlation is still unavailable. In this review, we aim to overview the advances in the synthesis, application and optimization of GDY-based nanomaterials to sensors. First, we briefly introduces the basic structure and properties of GDY. Secondly, the synthesis methods of GDY are discussed, which typically include the bottom-up and top-down approaches. Particular focus is placed on the research and progress of GDY in the field of sensing including gas, electrochemical and biosensors. Strategies to optimize the sensing performances of GDY are also discussed. Finally, the challenges and perspectives of GDY in future sensor research are proposed.