高稳健且高效的无金属水杯固液摩擦纳米发电机用于机械能收集与乙醇检测
Highly robust and efficient metal-free water cup solid-liquid triboelectric generator for mechanical energy harvesting and ethanol detection
AI总结：
设计了一种仅用水和塑料杯的无金属水杯摩擦纳米发电机（WC-TENG），实现高效机械能收集与高湿环境适应性，并利用乙醇对界面电位的影响实现选择性乙醇传感。
摘要：
近期，基于固液接触起电的低频机械能收集器因其在耐磨性、高电荷转移效率以及对固液界面电子-离子相互作用的新见解（尤其是在材料识别方面）的独特优势而受到广泛关注。因此，我们设计了一种稳健且高效的水杯摩擦纳米发电机（WC-TENG），仅使用普通饮用水和塑料水杯作为主要材料，实现了高效功率输出，同时消除了对金属电极的需求，并有效解决了发电机部件的腐蚀问题。实验结果表明，在2 Hz的工作频率下，WC-TENG产生249.71 V的开路电压（Voc）、4.21 uA的短路电流（Isc）和188.85 nC的转移电荷（Qsc）。WC-TENG展现出长期稳定性和可靠性，在1500 s内保持稳定的电压输出。此外，WC-TENG在高湿度条件下保持稳定性能，其输出随温度升高而增强，突显了其在多样化环境应用中的稳健性和适应性。进一步地，乙醇的引入通过阻碍电子转移并降低WC-TENG的电输出，破坏了固液界面的电位平衡，但随着乙醇挥发，设备逐渐恢复至其原始电位状态，展示了其作为选择性乙醇传感器的潜力。该设计不仅推动了耐腐蚀、高性能能量收集器的发展，也为低成本、可持续且环境适应性强的传感技术开辟了新可能。
英文摘要：
Recently, low-frequency mechanical energy harvesters based on solid-liquid contact electrification have garnered widespread attention for their unique advantages in wear resistance, high charge transfer efficiency, and novel insights into electron-ion interactions at the solid-liquid interface, particularly in material identification. Hence, we designed an robust and efficient water cup triboelectric nanogenerator (WC-TENG) that only uses ordinary drinking water and plastic water cups as primary materials, achieving high-efficiency power output while eliminating the need for metal electrodes and effectively addressing the issue of corrosion in generator components. Experimental results indicate that, at an operating frequency of 2 Hz, the WC-TENG generates an open-circuit voltage (Voc) of 249.71 V, a short-circuit current (Isc) of 4.21 uA, and a transferred charge (Qsc) of 188.85 nC. The WC-TENG demonstrates long-term stability and reliability, maintaining stable voltage output over 1500 s. Moreover, the WC-TENG maintains stable performance under high humidity conditions, and its output enhances with increasing temperature, underscoring its robustness and adaptability for diverse environmental applications. Furthermore, the introduction of ethanol disrupts the potential balance at the solid-liquid interface by impeding electron transfer and reducing the WC-TENG's electrical output, but as the ethanol volatilizes, the device gradually returns to its original potential state, demonstrating its potential as a selective ethanol sensor. This design not only advances the development of corrosion-resistant, high-performance energy harvesters but also opens up new possibilities for low-cost, sustainable, and environmentally adaptable sensing technologies.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
