%0 Journal Article
%T 基于铂修饰氧化铈/氧化锌纳米棒的柔性室温氢传感器
Flexible Hydrogen Sensor Based on Platinum Decorated CeO2/ZnO Nanorods Working at Room Temperature
%A 田战友
%A 高云
%A 夏晓红
%J Material Sciences
%P 342-355
%@ 2160-7621
%D 2025
%I Hans Publishing
%R 10.12677/ms.2025.153040
%X 柔性器件由于其重量轻、可弯曲、易于生产、成本低和运输方便等特点，在环境监测和可穿戴电子产品中表现出了巨大的潜力。金属氧化物半导体由于其易于集成、灵敏度高和使用寿命长等特点，在气体传感应用中引起了广泛关注。在这项研究中，我们成功地在柔性聚酰亚胺(PI)基板上制造了CeO₂/Pt/ZnO纳米棒阵列，并采用了旋涂、水热合成、溅射和真空蒸发技术的组合，用于氢传感应用。优化后的样品CeO₂ (20 nm)/Pt (20 s)/ZnO在室温下对1200 ppm H₂的响应率为58.7%，同时具有出色的循环稳定性和对氢气的高选择性。值得注意的是，该传感器在弯曲90度103次后仍保持良好的气敏性能。利用X射线衍射(XRD)、扫描电子显微镜(SEM)、X射线光电子能谱(XPS)和其他分析技术全面表征了样品的微观结构和化学价态。此外，还研究了影响传感性能的因素，并阐明了增强气敏响应的机制。
Flexible devices have demonstrated significant potential in environmental monitoring and wearable electronics due to their lightweight, bendability, ease of production, low cost, and convenient transportation. Metal oxide semiconductors have garnered considerable attention for gas sensing applications, thanks to their ease of integration, high sensitivity, and long service life. In this study, CeO₂/Pt/ZnO nanorod arrays were successfully fabricated on a flexible polyimide (PI) substrate using a combination of spin coating, hydrothermal synthesis, sputtering, and vacuum evaporation techniques for hydrogen sensing applications. The optimized sample, CeO₂ (20 nm)/Pt (20 s)/ZnO, exhibited a response of 58.7% to 1200 ppm H2 at room temperature, along with excellent cyclic stability and high selectivity for hydrogen gas. Notably, the sensor maintained good gas-sensing performance even after being bent 90 degrees for 103 times. The microstructure and chemical valence states of the samples were comprehensively characterized using X-ray diffraction (XRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), and other analytical techniques. Additionally, the factors influencing the sensing performance were investigated, and the mechanisms underlying the enhanced gas-sensing response were elucidated.
%K 柔性衬底，
%K 氢气传感器，
%K 氧化锌，
%K 氧化铈，
%K 铂负载
Flexible Substrate
%K Hydrogen Sensor
%K Zinc Oxide
%K Cerium Oxide
%K Platinum Loading
%U http://www.hanspub.org/journal/PaperInformation.aspx?PaperID=109014