2D Materials with 1D Semiconducting Nanostructures for High‐Performance Gas Sensor

2D materials with 1D semiconducting nanostructures have been widely investigated and assembled to be gas sensors with promising sensing properties. A number of strategies to assemble the 1D materials-based nanostructures were systematically studied and compared, including hydrothermal process, thermal oxides, and electrospinning. The gas-sensing performances of the 2D materials with 1D semiconducting nanostructures were also reviewed and summarized through investigating their sensing responses, response times, and recovery times. The sensor based on 1D semiconducting nanostructures composited with 2D graphene/reduced graphene oxide, MoS 2 , WS 2 , or ZnO were systematically explored by comparing their sensing properties to small gas molecules or volatile organic compounds. The sensing mechanisms of 2D materials with 1D semiconducting nanostructures were discussed as well. And the improvements in their sensing properties were mainly attributed to the built heterojunctions in the hybrid composites and their high specific surface areas. This review indicated that the 1D semiconducting nanostructures hybridized with 2D materials could also be potential sensing materials to exhibit outstanding gas-sensing performances.