A review on nanofiber-based composites for toxic and flammable gas sensing

IF 23.2 2区材料科学 Q1 MATERIALS SCIENCE, COMPOSITES

Advanced Composites and Hybrid Materials Pub Date : 2024-06-25 DOI:10.1007/s42114-024-00922-6

Xueting Zhang, Junying Zhang, Congju Li, Xiuling Zhang, Jimmy Yun, Dapeng Cao

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Abstract

Nanofibers, due to the characteristics of high porosity, large specific surface area, and high strength and mechanical flexibility, exhibit a great potential for gas sensing as a sensing layer or versatile support. The abundant compositions, specific morphology, and tunable pore size of nanofibers are suitable for the detection of diverse environmental gases, and its excellent flexibility and mechanical properties are convenient for fabricating the smart and wearable electronic devices. Compared with conventional powder materials, these merits of nanofibers mainly can enhance the sensitivity and stability. In this review, we first introduce the main evaluation parameters for gas sensors, the designed principle of sensors, and the advantages of nanofiber materials for gas sensing. Then, the recent advances in nanofiber-based gas sensors for monitoring the different environmental gases, mainly including hydrogen (H₂), methane (CH₄), carbon monoxide (CO), acid gases (H₂S, NO₂, and SO₂), SF₆ and its decomposition products, chemical warfare agents (CWAs), and volatile organic compounds (VOCs), are summarized. Meanwhile, the sensing mechanism and different sensing materials based on noble metals, metal oxides, metal-organic framework, and their composites are discussed comprehensively. Finally, the challenges and perspectives of nanofiber-based gas sensors are also addressed.

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有毒和可燃气体传感用纳米纤维基复合材料综述

摘要纳米纤维具有高孔隙率、大比表面积、高强度和机械柔性等特点，作为传感层或多功能支撑物，在气体传感领域具有巨大潜力。纳米纤维具有丰富的成分、特定的形态和可调的孔径，适用于多种环境气体的检测，其优异的柔韧性和机械性能也便于制造智能和可穿戴电子设备。与传统粉末材料相比，纳米纤维的这些优点主要是提高了灵敏度和稳定性。在这篇综述中，我们首先介绍了气体传感器的主要评估参数、传感器的设计原理以及纳米纤维材料在气体传感方面的优势。然后，总结了用于监测不同环境气体（主要包括氢气 (H2)、甲烷 (CH4)、一氧化碳 (CO)、酸性气体（H2S、NO2 和 SO2）、SF6 及其分解产物、化学战剂 (CWA) 和挥发性有机化合物 (VOC) 等）的纳米纤维气体传感器的最新进展。同时，全面讨论了基于贵金属、金属氧化物、金属有机框架及其复合材料的传感机理和不同的传感材料。最后，还探讨了基于纳米纤维的气体传感器所面临的挑战和前景。

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来源期刊

Advanced Composites and Hybrid Materials Multiple-

CiteScore

26.00

自引率

21.40%

发文量

185

期刊介绍： Advanced Composites and Hybrid Materials is a leading international journal that promotes interdisciplinary collaboration among materials scientists, engineers, chemists, biologists, and physicists working on composites, including nanocomposites. Our aim is to facilitate rapid scientific communication in this field. The journal publishes high-quality research on various aspects of composite materials, including materials design, surface and interface science/engineering, manufacturing, structure control, property design, device fabrication, and other applications. We also welcome simulation and modeling studies that are relevant to composites. Additionally, papers focusing on the relationship between fillers and the matrix are of particular interest. Our scope includes polymer, metal, and ceramic matrices, with a special emphasis on reviews and meta-analyses related to materials selection. We cover a wide range of topics, including transport properties, strategies for controlling interfaces and composition distribution, bottom-up assembly of nanocomposites, highly porous and high-density composites, electronic structure design, materials synergisms, and thermoelectric materials. Advanced Composites and Hybrid Materials follows a rigorous single-blind peer-review process to ensure the quality and integrity of the published work.