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Start Over Author "Dou, Yun" Publisher elsevier bv
5 results on '"Dou, Yun"'

4. Synthesis and characterization of ErFeO3 nanoparticles by a hydrothermal method for isopropanol sensing properties

Author

Shi Tu Pei, X.H. Xu, Ting Ting Yang, Peng Dou Yun, Hao Sheng, P.F. Cao, T. Han, Li Wang, S.Y. Ma, and Xiaoli Xu

Subjects
010302 applied physics, Materials science, Iron oxide, Nanoparticle, chemistry.chemical_element, Sintering, 02 engineering and technology, 021001 nanoscience & nanotechnology, Condensed Matter Physics, 01 natural sciences, Hydrothermal circulation, Surfaces, Coatings and Films, Erbium, chemistry.chemical_compound, chemistry, Chemical engineering, X-ray photoelectron spectroscopy, 0103 physical sciences, Orthorhombic crystal system, Crystallite, 0210 nano-technology, Instrumentation
Abstract

The pure Erbium Iron Oxide (ErFeO3) was obtained through sintering at 900 °C and acidization procedure after a facile hydrothermal method. A series of various techniques including XRD, SEM, TEM and XPS characterized the ErFeO3 nanoparticles. The results displayed that the polycrystalline ErFeO3 nanoparticles with an orthorhombic perovskite structure possess rough surface, which is good for increasing gas sensitive properties. In addition, the gas sensing test revealed that the gas sensor based on ErFeO3 nanoparticles exhibited an excellent response (about 20) and fast response and recovery time (6 s and 25 s) toward 100 ppm isopropanol at 270 °C. Remarkably, the ErFeO3 gas sensor even owns a discernible response value of 2.31 to 2 ppm isopropanol. Furthermore, the gas-sensing mechanism of sensor was also discussed.

Published
2021

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