Zhang Erpan, Yan Wenjun, Zhou Shiyu, Ling Min, Zhou Houpan
Institute of Advanced Magnetic Materials, College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou 310018, People's Republic of China.
School of Automation, Hangzhou Dianzi University, Hangzhou 310018, People's Republic of China.
Nanotechnology. 2023 Jan 20;34(13). doi: 10.1088/1361-6528/acae5d.
FeOis an environmentally friendly gas sensing material with high response, but the cross-response to various analytes and poor thermal stability limit its practical applications. In this work, we prepared FeO@uio66 core-shell composite via a facile method. The selective response to volatile organic compounds, especially to electrolyte vapors of lithium-ion batteries, as well as long-term stability of FeO@uio66 has been dramatically enhanced compared to pure FeO, due to the preconcentrator feature and thermal stability of the uio66 thin shell. Real-time detection of electrolyte leakage for an actual punctured lithium-ion battery was further demonstrated. The FeO@uio66 sensor, after aging for 3 months, was able to detect the electrolyte leakage in 30 s, while the voltage of the punctured battery was maintained at the same level as that of a pristine battery over 6 h. This practical test results verified ability of the FeO@uio66 sensor with long-term aging stability for hours of early safety warning of lithium-ion batteries.
FeO是一种具有高响应性的环保型气敏材料，但对各种分析物的交叉响应和较差的热稳定性限制了其实际应用。在这项工作中，我们通过一种简便的方法制备了FeO@uio66核壳复合材料。与纯FeO相比，由于uio66薄壳的预浓缩特性和热稳定性，FeO@uio66对挥发性有机化合物，特别是对锂离子电池的电解质蒸汽具有选择性响应，并且其长期稳定性得到了显著提高。进一步展示了对实际刺破的锂离子电池的电解质泄漏进行实时检测。经过3个月老化的FeO@uio66传感器能够在30秒内检测到电解质泄漏，而刺破电池的电压在6小时内保持与原始电池相同的水平。这一实际测试结果验证了FeO@uio66传感器具有长期老化稳定性，能够对锂离子电池进行数小时的早期安全预警。
