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    • MoS2 nanosheets-decorated SnO2 nanofibers for enhanced SO2 gas sensing performance and classification of CO, NH3 and H2 gases
    Authors: Nguyen Ngoc Viet;  Advisor: Le Viet Thong; Tran Khoa Dang; Phan Hong Phuoc; Nguyen Hong Chien; Chu Manh Hung; Nguyen Duc Hoa; Nguyen Van Duy; Nguyen Van Toan; Nguyen Tang Son; Nguyen Van Hieu;  Co-Author: - (2021)

    The effect of MoS2 nanosheet (NS) decoration on the gas-sensing properties of SnO2 nanofibers (NFs) was investigated. The decorated sensors were fabricated by facile on-chip electrospinning technique and subsequently dropping MoS2 NSs-dispersed solution. The MoS2 NS decoration resulted in enhanced the response and reduced the operating temperature of SnO2 NFs towards SO2 gas. The SnO2 NF sensor decorated with the optimum density of MoS2 NSs exhibited about 10-fold enhancement in gas response to 10 ppm SO2 at 150 °C as compared with the bare SnO2 NF sensor. Furthermore, the decorated sensors exhibited an extremely low detection limit and good selectivity for SO2 gas against other inter...