Abstract An efficient electrochemical sensing and catalysis platform based on Cu–Ni alloy is developed. The Cu–Ni alloy (CN) are synthesized using ultrasonic aided thermal annealing process. The synthesized Cu–Ni nanostructures are thoroughly characterized for its crystallinity, morphology and topography. For the electrochemical sensing, the resorcinol is chosen as analyte and for catalyst assisted chemical degradation process, methylene blue is selected as an analyte. Upon electrochemical sensing investigation, Cu–Ni alloy based sensor exhibited superior sensitivity of 7.9472 μAμM−1cm−2 and current responses are linear over the concentration range from 0.01 to 5.59 μM. The limit of detection (LOD) and limit of quantification (LOQ) of the sensor is estimated to be 5.24 nM and 0.0175 μM. The sensor is successfully tested for real time environmental samples. In the catalyst assisted chemical degradation of the methylene blue dye investigation, our catalyst Cu–Ni alloy accelerated the degradation of methylene blue in 9 min.

中文翻译：

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基于Cu-Ni合金的双金属多功能纳米结构用于环境传感和催化应用

摘要 开发了一种基于铜镍合金的高效电化学传感和催化平台。Cu-Ni合金（CN）是使用超声波辅助热退火工艺合成的。合成的 Cu-Ni 纳米结构的结晶度、形态和形貌得到了彻底的表征。对于电化学传感，选择间苯二酚作为分析物，对于催化剂辅助的化学降解过程，选择亚甲蓝作为分析物。在电化学传感研究中，基于 Cu-Ni 合金的传感器表现出 7.9472 μAμM-1cm-2 的优异灵敏度，并且电流响应在 0.01 至 5.59 μM 的浓度范围内呈线性。传感器的检测限 (LOD) 和定量限 (LOQ) 估计为 5.24 nM 和 0.0175 μM。该传感器已成功通过实时环境样本测试。在亚甲蓝染料的催化剂辅助化学降解研究中，我们的催化剂铜镍合金在 9 分钟内加速了亚甲蓝的降解。