Copper sulfide nanospheres (CuS NS) were prepared by a solvothermal method with the support of p-phenylene diamine as a structure direct agent. The formation of CuS NS was evaluated using XRD, FE-SEM, HR-TEM, XPS, and electrochemical methods. The CuS NS modified electrode demonstrated excellent electro-catalytic behavior for the electro-oxidation of oxalic acid (OA). The modified electrode showed a good linear range (50 to 700 μM), high sensitivity (0.0353 μA μM⁻¹ cm⁻²), a low detection limit (35.6 μM), long term stability and good anti-interference behavior.

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中文翻译：

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使用胺介导合成 CuS 纳米球的草酸电化学无酶传感

以对苯二胺为结构直接剂，通过溶剂热法制备硫化铜纳米球（CuS NS）。使用 XRD、FE-SEM、HR-TEM、XPS 和电化学方法评估 CuS NS 的形成。CuS NS修饰电极对草酸（OA）的电氧化表现出优异的电催化性能。修饰电极显示出良好的线性范围（50 至 700 μM）、高灵敏度（0.0353 μA μM ^-1 cm ^-2）、低检测限（35.6 μM）、长期稳定性和良好的抗干扰性能。

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