Askar Perizat, Kanzhigitova Dana, Ospanova Aigerim, Tapkharov Aslan, Duisenbekov Sagydat, Abutalip Munziya, Soltabayev Baktiyar, Turlybekuly Amanzhol, Adilov Salimgerey, Nuraje Nurxat
Department of Chemical and Materials Engineering, School of Engineering & Digital Science, Nazarbayev University, 010000, Astana, Kazakhstan.
Lab of Renewable Energy, National Laboratory Astana, Nazarbayev University, 010000, Astana, Kazakhstan.
Sci Rep. 2024 Nov 6;14(1):26984. doi: 10.1038/s41598-024-77083-5.
The hydrogen (H) energy industry has continued to expand in recent years due to the decarbonization of the global energy system and the drive towards sustainable development. Due to hydrogen's high flammability and significant safety risks, the efficient detection of hydrogen has become an increasingly hot issue today. In this work, a new type of relatively fast and responsive conducting polymer sensor has been demonstrated for tracing H gas in a nitrogen environment. Inspiration of unique properties of carbon nanotube (CNT) and graphene, polyaniline (PANI) hollow nanotubes, PANI thin films are fabricated to study for structural-properties investigation. The PANI hollow nanotube sensor ensures the 1 ppm hydrogen gas detection at room temperature, and exhibits high sensitivity (29%) and fast response and recovery times of 15 and 17 s, follows by PANI thin film sensor (20%), response and recovery times of 65s and 45s. This conducting polymer-based hydrogen sensor holds promise for the early detection of H leaks in a wide range of industries.
近年来，由于全球能源系统的脱碳以及对可持续发展的推动，氢能产业持续扩张。由于氢气具有高易燃性和重大安全风险，氢气的高效检测已成为当今日益热门的问题。在这项工作中，一种新型的相对快速响应的导电聚合物传感器已被证明可用于在氮气环境中追踪氢气。受碳纳米管（CNT）和石墨烯独特性能的启发，制备了聚苯胺（PANI）中空纳米管、PANI薄膜以进行结构性能研究。PANI中空纳米管传感器可在室温下检测到1 ppm的氢气，具有高灵敏度（29%），响应和恢复时间分别为15秒和17秒，其次是PANI薄膜传感器（20%），响应和恢复时间分别为65秒和45秒。这种基于导电聚合物的氢气传感器有望在广泛的行业中早期检测氢气泄漏。
