乙醇气体传感器用RGO/ \(\alpha\) -Fe \(_2\) O \(_3\)纳米纤维异质纳米结设计

Communications in Physics Pub Date : 2022-11-21 DOI:10.15625/0868-3166/17513

Hong Phuoc Phan, V. Le, V. Nguyen, D. Nguyen, V. Nguyen, Ngoc Viet Nguyen, V. Nguyen

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摘要

负载还原氧化石墨烯(RGO)增强赤铁矿\(\alpha\) -Fe2O3的气敏性能引起了广泛的关注。在本研究中，通过静电纺丝法和随后的煅烧工艺制备了负载rgo的\(\alpha\) -Fe2O3纳米纤维。扫描电镜(SEM)图像显示，负载rgo的\(\alpha\) -Fe2O3纳米纤维具有典型的蜘蛛网形态，直径为50 ～ 100 nm。x射线衍射(XRD)显示了负载rgo的α-Fe2O3纳米纤维的菱形结构。能谱分析结果表明，合成的纳米纤维中存在Fe、O和C元素。气体传感结果也证实了基于rgo负载\(\alpha\) -Fe2O3纳米纤维的传感器可以用于乙醇气体的检测。

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The Design of Hetero-nanojunction of RGO/\(\alpha\)-Fe\(_2\)O\(_3\) Nanofibers for Ethanol Gas Sensor

Enhanced gas sensing properties of hematite \(\alpha\)-Fe2O3 by loaded reduced graphene oxides (RGO) have attracted considerable attention. In this study, RGO-loaded \(\alpha\)-Fe2O3 nanofibers were fabricated via the facile electrospinning method and subsequent calcination process. The scanning electron microscopy (SEM) images showed that RGO-loaded \(\alpha\)-Fe2O3 nanofibers with diameters of 50-100 nm have typical morphologies of spider nets. The X-ray diffraction (XRD) patterns revealed the rhombohedral structure of the RGO-loaded α-Fe2O3 nanofibers. The energy dispersive X-ray spectroscopy (EDS) results exhibited the presence of Fe, O, and C elements in the synthesized nanofibers. The gas sensing results also confirmed that the sensors based on RGO-loaded \(\alpha\)-Fe2O3 nanofibers could be applied for detecting ethanol gas.

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Communications in Physics

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