Effect of synthesis parameters on cobalt oxide nanostructures morphology

Thi Lan Anh Hoang, Minh Trung Nguyen, Thi Kieu Anh Do, Le Thi Thanh Dang, Vu Diem Ngoc Tran, Thi Ngoc Tram Do, Nguyen Duc Hoa
Author affiliations

Authors

  • Thi Lan Anh Hoang
  • Minh Trung Nguyen
  • Thi Kieu Anh Do
  • Le Thi Thanh Dang International Training Institute for Materials Science (ITIMS) - Hanoi University of Science and Technology (HUST) https://orcid.org/0000-0001-5731-4244
  • Vu Diem Ngoc Tran
  • Thi Ngoc Tram Do
  • Nguyen Duc Hoa International Training Institute for Materials Science, Hanoi University of Science and Technology (HUST), No. 1 Dai Co Viet, Hanoi, Vietnam

DOI:

https://doi.org/10.15625/0868-3166/18278

Abstract

A facile approach was employed for the synthesis of cobalt oxide nanorods (NRs) using cobalt nitrate, sodium oxalate and ethylene glycol as precursors via a hydrothermal process. The hydrothermal conditions, such as temperature and time, were varied to optimize the morphological characteristics of the NRs. After undergoing filtration, washing, and drying, the resulting material was characterized using several techniques, including field emission scanning electron microscopy (FESEM), energy-dispersive X-ray spectroscopy (EDS), X-ray diffraction (XRD), and transmission electron microscopy (TEM). Our findings reveal that the NRs exhibit diverse morphologies, depending on the hydrothermal conditions, with the smallest aspect ratio observed when prepared at 200 °C for 24 hours. In addition, we investigated the gas sensing capabilities of the NRs to ammonia under these conditions.

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Published

11-08-2023

How to Cite

[1]
T. L. A. Hoang, “Effect of synthesis parameters on cobalt oxide nanostructures morphology”, Comm. Phys., vol. 33, no. 3, p. 273, Aug. 2023.

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Papers
Received 18-04-2023
Accepted 06-06-2023
Published 11-08-2023

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