Abstract Molybdenum sulfide (MoS2) may be a promising material for biosensing applications due to their remarkable electronic, electrochemical attributes, and luminescence properties. Herein, thin layered MoS2 deposited on carbon nanospheres… Click to show full abstract
Abstract Molybdenum sulfide (MoS2) may be a promising material for biosensing applications due to their remarkable electronic, electrochemical attributes, and luminescence properties. Herein, thin layered MoS2 deposited on carbon nanospheres with microporosity (m-MoS2@CNS) was prepared through a simple dip-calcination method. The as-prepared m-MoS2@CNS exhibits the well-defined pore, high surface area, and good electrical conductivity, which lead to facilitated electron/ion transport during electrochemical reaction. Based on their outstanding electrochemical properties, the m-MoS2@CNS reveals the excellent performance as a non-enzymatic detection of hydrogen peroxide in a wide concentration range, from 0.1 mM to 20 mM, with high sensitivity (8.89 μA/mM·cm2) and low limit of detection (7.5 μM, S/N = 3). Moreover, the electrode has a favorable selectivity, reproducibility, and fast response time (~ 7 s). Thus, the m-MoS2@CNS has a great potential as an electrocatalyst for the efficient detection of hydrogen peroxide.
               
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