Abstract Sensitive and non-enzymatic electrochemical hydrogen peroxide (H2O2) sensor was fabricated using molybdenum disulphide (MoS2)-Interconnected porous carbon (ICPC) heterostructure. The structural properties of synthesized MoS2, ICPC and MoS2-ICPC materials were examined by various spectroscopy and microscopy techniques. These results confirmed that the support matrix play a crucial role for the formation of different size of MoS2. The structure of MoS2 altered to nanosized while growing on the support matrix. The electrochemical H2O2 sensing characteristics of MoS2-ICPC composite material exhibited superior activity than individual MoS2 and ICPC materials. The results concluded that the interconnected porous carbon might stimulate the structural modification of MoS2 with enhance exposed active edge sites, which is responsible for higher electrochemical activity. The composite material exhibited a detection limit of 11.8 μM H2O2 with higher sensitivity, selectivity, and long-term stability. These results open a novel way to build MoS2-ICPC material for active electrochemical sensor applications.

中文翻译：

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使用 MoS 2 的非酶电化学过氧化氢检测 - 互连多孔碳异质结构

摘要 使用二硫化钼 (MoS2)-互连多孔碳 (ICPC) 异质结构制造了灵敏且非酶促的电化学过氧化氢 (H2O2) 传感器。通过各种光谱和显微镜技术检查合成的 MoS2、ICPC 和 MoS2-ICPC 材料的结构特性。这些结果证实了载体基质对形成不同尺寸的 MoS2 起着至关重要的作用。在载体基质上生长时，MoS2 的结构变为纳米级。MoS2-ICPC 复合材料的电化学 H2O2 传感特性表现出优于单独的 MoS2 和 ICPC 材料的活性。结果得出结论，互连的多孔碳可能会刺激 MoS2 的结构改性，并增强暴露的活性边缘位点，这负责更高的电化学活性。该复合材料的检测限为 11.8 μM H2O2，具有更高的灵敏度、选择性和长期稳定性。这些结果为构建用于活性电化学传感器应用的 MoS2-ICPC 材料开辟了一条新途径。