High electrical conductivity and more active sites exposure are crucial for improving the performance of electrocatalyst. Binary metal oxide nanoarray grown on conductive substrate offers a 3D self-supported electrode with a great promise in boosting its performance in enzyme-free glucose sensing. Here, NiMoO₄ nanosheet arrays anchored on carbon cloth (NiMoO₄ NSA/CC) was prepared via a simple hydrothermal synthesis and used as 3D self-supported electrode for enzyme-free glucose sensing. The morphology and composition of NiMoO₄ nanosheet have been characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). The electrochemical results show that NiMoO₄ NSA/CC exhibits remarkable high catalytic activity towards glucose oxidation, with a wide linear response ranging from 1 μM to 0.9 mM, a high sensitivity of 4.13 mA/mM·cm², and a low detection limit of 1 μM (S/N = 3). The enhanced performance might be attributed to the merits of nanosheet arrays with large surface area, self-supported electrode with 3D open network, as well as bimetallic component with high conductivity. Furthermore, NiMoO₄ NSA/CC also shows good selectivity and reliability for glucose detection in human serum. This work offers a new pathway for the construction of enzyme-free glucose sensor with high performance.

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高电导率和更多活性位点暴露对于改善电催化剂的性能至关重要。在导电基板上生长的二元金属氧化物纳米阵列提供了3D自支撑电极，在提高其在无酶葡萄糖传感方面的性能方面具有广阔的前景。在这里，通过简单的水热合成制备了锚固在碳布上的NiMoO ₄纳米片阵列（NiMoO ₄ NSA / CC），并用作无酶葡萄糖感测的3D自支撑电极。NiMoO ₄纳米片的形态和组成已通过X射线衍射（XRD），扫描电子显微镜（SEM）和透射电子显微镜（TEM）进行了表征。电化学结果表明，NiMoO ₄NSA / CC对葡萄糖氧化显示出显着的高催化活性，线性响应范围从1μM到0.9 mM，灵敏度高至4.13 mA / mM·cm ²，检测限低至1μM（S / N  = 3）。增强的性能可能归因于具有大表面积的纳米片阵列，具有3D开放网络的自支撑电极以及具有高电导率的双金属组件的优点。此外，NiMoO ₄ NSA / CC对人血清中的葡萄糖检测也显示出良好的选择性和可靠性。这项工作为构建高性能的无酶葡萄糖传感器提供了一条新途径。

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