Synthesis and enhanced electrochemical properties of AuNPs@MoS2/rGO hybrid structures for highly sensitive nitrite detection

An ultra-high sensitive nitrite electrochemical sensor was developed by an efficient hybrid structure, which is constructed by modification gold nanoparticles on molybdenum disulfide and reduced graphene oxide (AuNPs@MoS2/rGO). The as-prepared Au4.5NPs@MoS2/rGO sensor shows the sensing parameters include ultra-high sensitivity (0.805 μA·μM−1·cm−2), low detection limit (0.038 μM (S/N=3)), wide linear range (0.2 μM-2600 μM), fast response time (3 s) and long-term stability.