Structural and H₂S Sensing Properties of Copper Ferrite Nanoparticles Prepared Through Hydrothermal Method.

Autor:	Anh LN; International Training Institute for Materials Science, Hanoi University of Science and Technology, Hanoi, 100000, Vietnam., Loan TT; International Training Institute for Materials Science, Hanoi University of Science and Technology, Hanoi, 100000, Vietnam., Thanh NK; Le Quy Don Technical University, Hanoi, 100000, Vietnam., Duong NP; International Training Institute for Materials Science, Hanoi University of Science and Technology, Hanoi, 100000, Vietnam., Nguyet DTT; International Training Institute for Materials Science, Hanoi University of Science and Technology, Hanoi, 100000, Vietnam., Hong NM; International Training Institute for Materials Science, Hanoi University of Science and Technology, Hanoi, 100000, Vietnam.
Jazyk:	angličtina
Zdroj:	Journal of nanoscience and nanotechnology [J Nanosci Nanotechnol] 2021 Apr 01; Vol. 21 (4), pp. 2641-2646.
DOI:	10.1166/jnn.2021.19095
Abstrakt:	In this paper, we report the H₂S sensing properties of partially inverse copper ferrite (CuFe₂O₄) nanoparticles with sizes ranging from 16 nm to few hundreds of nanometers prepared through hydrothermal method. Effects of annealing temperature on the particle size, microstructure and gas-sensing properties of spinel ferrite were studied through scanning electron microscopy, synchrotron X-ray powder diffraction and resistance measurement. Electrical conduction mechanism is discussed based on the cation distribution in the lattice and resistance contribution from the grain boundaries. Gas sensing ability of the samples was recognized for H₂S concentrations from 5 down to 0.5 ppm and in working temperature range from 50 to 250 °C.
Databáze:	MEDLINE
Externí odkaz:	Zobrazit plný text záznamu