Zhao Rui, Wang Yue, Zhang Zhiqiang, Hasebe Yasushi, Tao Dongping
School of Chemical Engineering, University of Science and Technology LiaoNing.
Department of Life Science and Green Chemistry, Faculty of Engineering, Saitama Institute of Technology.
Anal Sci. 2019 Jul 10;35(7):733-738. doi: 10.2116/analsci.19P012. Epub 2019 Feb 8.
Molybdenite (MLN) was physically co-adsorbed with Ag nanoparticles (Ag) on a glassy carbon electrode (GCE) for selectively sensing of ascorbic acid (AA). The composite was characterized with a scan electron microscope, a high-temperature confocal laser scanning microscope, an X-ray diffractometer, an X-ray fluorescence analyzer and electrochemical methods. The prepared MLN/Ag-GCE sensor exhibited good properties including a linear range from 3.0 × 10 to 1.0 × 10 M toward AA, a low detection limit of 1.5 × 10 M, good selectivity, excellent reproducibility, and good stability. The synergistic effect between MLN and Ag nanoparticles results in an enhancement of the electrocatalytic activity for molybdenite.
辉钼矿（MLN）与银纳米颗粒（Ag）在玻碳电极（GCE）上进行物理共吸附，用于选择性检测抗坏血酸（AA）。采用扫描电子显微镜、高温共聚焦激光扫描显微镜、X射线衍射仪、X射线荧光分析仪和电化学方法对该复合材料进行了表征。制备的MLN/Ag-GCE传感器具有良好的性能，包括对AA的线性范围为3.0×10至1.0×10 M，低检测限为1.5×10 M，良好的选择性、出色的重现性和良好的稳定性。MLN与银纳米颗粒之间的协同效应导致辉钼矿的电催化活性增强。
