Pt簇修饰SnO2与无定形SiO2集成：用于高性能NO2传感的全无机自支撑可穿戴纳米纤维膜

IF 6.8 2区材料科学 Q1 MATERIALS SCIENCE, MULTIDISCIPLINARY

Science China Materials Pub Date : 2025-04-09 DOI:10.1007/s40843-024-3310-3

Jia Liu (, ), Yumeng Liu (, ), Shuangju Jia (, ), Xinyi Zhang (, ), Renzhong Ji (, ), Xinlei Zhang (, ), Jianzhi Gao (, ), Jinniu Zhang (, ), Haiping Lin (, ), Hongbing Lu (, )

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引用次数: 0

摘要

由于传统有机衬底的固有限制，基于金属氧化物的柔性气体传感器难以同时实现高灵活性、透气性、灵敏度和热稳定性。本研究介绍了一种先进的全无机、自支撑式气体传感器，该传感器建立在非晶SiO2纳米纤维衬底上，并具有交织Pt-SnO2-SiO2纳米纤维传感元件。无定形SiO2结构，以及全无机三维多孔网络，赋予Pt-SnO2-SiO2 /SiO2传感器卓越的灵活性，高透气性和强热稳定性。将Pt团簇高温掺入柔性SnO2-SiO2 /SiO2膜中可显著提高灵敏度，在25°C下达到1000 ppb NO2时，响应提高了157倍。即使在曲率半径(R)为2mm的10000次弯曲循环后，传感器仍能保持其鲁棒响应而不会降低灵敏度。其增强的灵活性和传感能力背后的机制进行了彻底的研究。这项工作为开发用于高性能可穿戴应用的贵金属簇装饰、全无机、超柔性气体传感器铺平了道路。

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

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.

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来源期刊

Science China Materials Materials Science-General Materials Science

CiteScore

11.40

自引率

7.40%

发文量

949

期刊介绍： Science China Materials (SCM) is a globally peer-reviewed journal that covers all facets of materials science. It is supervised by the Chinese Academy of Sciences and co-sponsored by the Chinese Academy of Sciences and the National Natural Science Foundation of China. The journal is jointly published monthly in both printed and electronic forms by Science China Press and Springer. The aim of SCM is to encourage communication of high-quality, innovative research results at the cutting-edge interface of materials science with chemistry, physics, biology, and engineering. It focuses on breakthroughs from around the world and aims to become a world-leading academic journal for materials science.