Kim Sanghoon, Maeng Bohee, Yang Yijun, Kim Kwanwoo, Jung Daewoong
Advanced Mechatronics R&D Group, Korea Institute of Industrial Technology (KITECH), Daegu 42994, Republic of Korea.
Nanomaterials (Basel). 2023 Sep 15;13(18):2563. doi: 10.3390/nano13182563.
The gasochromism of WO, wherein the color of the material changes according to the reaction of gas, can immediately allow for the determination of the presence of hydrogen by the naked eye. We have also developed a hybrid hydrogen sensor for WO, a metal oxide, that can simultaneously utilize its gasochromic response and resistance to hydrogen. Because the proposed sensor has a transparent electrode on a glass substrate, it is a structure that can not only reveal the change in resistance but also more clearly illustrate the gasochromic response. A hybrid sensing demonstration in a hydrogen leak environment was successfully performed to verify a sensor that was capable of utilizing the resistive and gasochromic response of WO.
WO₃的气致变色现象，即材料的颜色会根据气体的反应而变化，可通过肉眼立即确定氢气的存在。我们还开发了一种用于金属氧化物WO₃的混合氢传感器，它可以同时利用其气致变色响应和对氢气的电阻特性。由于所提出的传感器在玻璃基板上有一个透明电极，它不仅可以显示电阻的变化，还能更清楚地说明气致变色响应。在氢气泄漏环境中成功进行了混合传感演示，以验证一种能够利用WO₃的电阻和气致变色响应的传感器。
