Direct growth of binary metal oxide nanoarray catalyst on 3D conductive substrate offers electrode materials with high conductivity and large specific surface area, representing an effective strategy to boost the performance of electrocatalyst. In the paper, we report the construction of ZnCo₂O₄ nanowire arrays supported on carbon cloth (ZnCo₂O₄ NWAs/CC) and its application for enzyme-free glucose oxidation. ZnCo₂O₄ NWAs/CC was prepared via a simple hydrothermal synthesis with subsequent calcination process. As an 3D self-supported enzyme-free electrode for glucose sensing, ZnCo₂O₄ NWAs/CC exhibited excellent catalytic activity with a high sensitivity of 3.88 mA mM^-1 cm^-2, a wide linear range from 5 μM to 0.5 mM, and a low detection limit of 2.5 μM (S/N = 3). Moreover, the proposed sensor shows high selectivity and good reliability for real sample analysis.

二元金属氧化物纳米阵列催化剂在3D导电基材上的直接生长提供了具有高导电性和大比表面积的电极材料，代表了提高电催化剂性能的有效策略。在本文中，我们报道了碳布（ZnCo ₂ O ₄ NWAs / CC）上支撑的ZnCo ₂ O ₄纳米线阵列的构建及其在无酶葡萄糖氧化中的应用。ZnCo ₂ O ₄ NWAs / CC通过简单的水热合成和随后的煅烧过程制备。ZnCo ₂ O ₄作为用于葡萄糖感测的3D自支撑无酶电极NWA / CC表现出出色的催化活性，具有3.88 mA mM ^-1  cm ^-2的高灵敏度，从5μM到0.5 mM的宽线性范围和2.5μM的低检测限（S / N = 3）。此外，所提出的传感器对于真实样品分析显示出高选择性和良好的可靠性。