Scholarlink

<p>Metal oxide-based flexible gas sensors struggle to achieve high flexibility, breathability, sensitivity, and thermal stability simultaneously due to the inherent constraints of traditional organic substrates. This study introduces an advanced all-inorganic, self-supporting gas sensor built on an amorphous SiO<sub>2</sub> nanofiber substrate with interwoven Pt–SnO<sub>2</sub>–SiO<sub>2</sub> nanofiber sensing elements. The amorphous SiO<sub>2</sub> structure, along with the all-inorganic three-dimensional porous network, grants the Pt–SnO<sub>2</sub>–SiO<sub>2</sub>/SiO<sub>2</sub> sensor remarkable flexibility, high breathability, and strong thermal stability. High-temperature incorporation of Pt clusters into the flexible SnO<sub>2</sub>–SiO<sub>2</sub>/SiO<sub>2</sub> membrane significantly boosts sensitivity, achieving a 157-fold response increase to 1000 ppb NO<sub>2</sub> at 25 °C. The sensor retains its robust response without sensitivity degradation even after 10000 bending cycles with a curvature radius (<i>R</i>) of 2 mm. The mechanisms behind its enhanced flexibility and sensing capabilities are thoroughly investigated. This work paves the way for developing noble metal cluster-decorated, all-inorganic, super-flexible gas sensors for high-performance wearable applications.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Pt cluster-modified SnO2 integrated with amorphous SiO2: an all-inorganic self-supporting wearable nanofiber membrane for high-performance NO2 sensing

  • 期刊论文

  • 发表日期：

    2025年4月9日

查看全文
  • Jia Liu,
  • Yumeng Liu,
  • Shuangju Jia,
  • Xinyi Zhang,
  • Renzhong Ji,
  • Xinlei Zhang,
  • Jianzhi Gao,
  • Jinniu Zhang,
  • Haiping Lin,
  • Hongbing Lu

摘要

Metal oxide-based flexible gas sensors struggle to achieve high flexibility, breathability, sensitivity, and thermal stability simultaneously due to the inherent constraints of traditional organic substrates. This study introduces an advanced all-inorganic, self-supporting gas sensor built on an amorphous SiO2 nanofiber substrate with interwoven Pt–SnO2–SiO2 nanofiber sensing elements. The amorphous SiO2 structure, along with the all-inorganic three-dimensional porous network, grants the Pt–SnO2–SiO2/SiO2 sensor remarkable flexibility, high breathability, and strong thermal stability. High-temperature incorporation of Pt clusters into the flexible SnO2–SiO2/SiO2 membrane significantly boosts sensitivity, achieving a 157-fold response increase to 1000 ppb NO2 at 25 °C. The sensor retains its robust response without sensitivity degradation even after 10000 bending cycles with a curvature radius (R) of 2 mm. The mechanisms behind its enhanced flexibility and sensing capabilities are thoroughly investigated. This work paves the way for developing noble metal cluster-decorated, all-inorganic, super-flexible gas sensors for high-performance wearable applications.