Low-dimensional cobalt oxide codoped manganese oxide nanoparticles (CMO NPs; dia. ~ 25.6 nm) were synthesized using the hydrothermal method in alkaline phase. The optical, morphological, and structural properties of CMO NPs were characterized in details using FT-IR, UV/vis., FESEM, XEDS, XPS, TEM, and XRD techniques. Glassy carbon electrode (GCE) was fabricated with a thin-layer of CMO NPs by conducting coating binders for the development of selective and sensitive thiourea (TU) sensors. Electrochemical responses along with higher sensitivity, large-dynamic-range, and long-term stability towards TU were performed by electrochemical I-V approach. The calibration curve was found linear over a wide linear dynamic range (LDR) of TU concentration. From the gradient of the calibration plot, limit of detection (LOD), and sensitivity were calculated as 12.0±0.05 pM and 3.3772 nAnM^-1 cm^-2 respectively. It is an organized route for the development of chemical sensor based on very low-dimensional CMO NPs/GCE using electrochemical reduction phenomena. As far as we know, this report is the maiden publication on highly sensitive TU sensor based on the CMO NPs/GCE. This method could be a pioneer developer in TU sensitive chemical sensor development using doped NPs in the simple I-V method for the important sensor applications with useful doped materials coupled nano-technological systems for environmental safety.

使用水热法在碱性相中合成了低维共氧化钴共掺杂的氧化锰纳米粒子（CMO NP；直径约25.6 nm）。使用FT-IR，UV / vis。，FESEM，XEDS，XPS，TEM和XRD技术详细描述了CMO NP的光学，形态和结构特性。玻碳电极（GCE）是通过传导用于开发选择性和敏感硫脲（TU）传感器的涂料粘合剂而用一层薄薄的CMO NP制成的。电化学响应以及较高的灵敏度，较大的动态范围和对TU的长期稳定性是通过电化学IV方法进行的。发现校准曲线在TU浓度的宽线性动态范围（LDR）上呈线性。根据校准图的梯度，计算出检测限（LOD）和灵敏度为12。^-1  cm ^-2。这是使用电化学还原现象开发的基于超低维CMO NPs / GCE的化学传感器开发的有条理的途径。据我们所知，该报告是基于CMO NPs / GCE的高灵敏度TU传感器的首次出版物。该方法可能是TU敏感化学传感器开发的先驱开发者，在简单的IV方法中使用掺杂的NP用于重要的传感器应用，其中有用的掺杂材料与纳米技术系统相结合以确保环境安全。