Design of hetero-nanojunction of RGO/\(\alpha\)-Fe\(_2\)O\(_3\) nanofibers for ethanol gas sensor

Phan Hong Phuoc, Le Viet Thong, Nguyen Van Hoang, Nguyen Duc Hoa, Nguyen Van Duy, Nguyen Ngoc Viet, Nguyen Van Hieu
Author affiliations

Authors

  • Phan Hong Phuoc Faculty of Electrical and Electronic Engineering, Phenikaa University, Hanoi, Vietnam
  • Le Viet Thong Faculty of Electrical and Electronic Engineering, Phenikaa University, Hanoi, Vietnam
  • Nguyen Van Hoang Department of Materials Science and Engineering, Le Quy Don Technical University, Hanoi, Vietnam
  • Nguyen Duc Hoa International Training Institute for Materials Science, Hanoi University of Science and Technology, Hanoi, Vietnam.
  • Nguyen Van Duy International Training Institute for Materials Science, Hanoi University of Science and Technology, Hanoi, Vietnam.
  • Nguyen Ngoc Viet Faculty of Electrical and Electronic Engineering, Phenikaa University, Hanoi, Vietnam
  • Nguyen Van Hieu \(^1\)Faculty of Electrical and Electronic Engineering, Phenikaa University, Hanoi, Vietnam;
    \(^2\)Phenikaa Research and Technology Institute (PRATI), A&A Green Phoenix Group, Hanoi, Viet Nam
    https://orcid.org/0000-0002-9613-9108

DOI:

https://doi.org/10.15625/0868-3166/17513

Keywords:

RGO, electrospinning, RGO-loaded \(\alpha\)-Fe\(_2\)O\(_3\) nanofibers, ethanol

Abstract

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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References

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Published

21-02-2023

How to Cite

[1]
H. P. Phan, “Design of hetero-nanojunction of RGO/\(\alpha\)-Fe\(_2\)O\(_3\) nanofibers for ethanol gas sensor”, Comm. Phys., vol. 33, no. 1, p. 103, Feb. 2023.

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Papers
Received 14-09-2022
Accepted 04-11-2022
Published 21-02-2023