Transition Metal Ion Effect on Ethanol Sensing of CeO2/TiO2 Core-shell at Room Temperature

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SAMADI SUSAN; ASADI CORDSHOOLI GHASEM; ZAKARIA SEYED AMIRABBAS; Zakaria Seyedeh Bahareh

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Journal: Journal of Applied Research in Chemistry Year:2019 | Volume:13 | Issue:1 Page(s): 85-95

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Title

Transition Metal Ion Effect on Ethanol Sensing of CeO2/TiO2 Core-shell at Room Temperature

Author(s)

SAMADI SUSAN | ASADI CORDSHOOLI GHASEM | ZAKARIA SEYED AMIRABBAS | Zakaria Seyedeh Bahareh | Issue Writer Certificate

Keywords

SensorQ1

ceria/titaniaQ1

core/shellQ2

ZirconiumQ1

VanadiumQ1

Abstract

CeO2/TiO2 core-shell nanoparticles are known as volatile compounds Sensors. The sensing properties of these nanoparticles changes by doping with different elements. In this work, the titania shell of the CeO2/TiO2 core-shell nanoparticles was doped by different molar ratios of Zr4+ and V5+. The existences of cerium, titanium, Zirconium and Vanadium elements were confirmed by energy dispersive spectroscopy (EDS). Formation of ceria and doped titania nanoparticels were approved by field emission scanning electron microscopy (FESEM). High-resolution transmission electron microscopy (HRTEM) used to show the formation of core/shell structure. The sensing properties of prepared CeO2/TiO2 core-shell nanoparticles were thoroughly investigated in the presence of methanol, ethanol and 2-propanol. Compared with pure CeO2/TiO2 core-shell nanoparticle, the 2% Vanadium doped CeO2/TiO2 exhibits enhanced ethanol sensing properties at room temperature. The sensitivity as a function of volatile organic compounds (VOCs) concentration was linear with suitably short response and recovery times at room temperature. The mechanism of Sensor’ s response was described based on the depletion region. In summary, the results show that CeO2/V2%-TiO2 is the most suitable Sensor for ethanol, based on the quantitative and qualitative measurement properties.

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APA: Copy

SAMADI, SUSAN, ASADI CORDSHOOLI, GHASEM, ZAKARIA, SEYED AMIRABBAS, & Zakaria, Seyedeh Bahareh. (2019). Transition Metal Ion Effect on Ethanol Sensing of CeO2/TiO2 Core-shell at Room Temperature. JOURNAL OF APPLIED RESEARCHES IN CHEMISTRY (JARC), 13(1 ), 85-95. SID. https://sid.ir/paper/180123/en

Vancouver: Copy

SAMADI SUSAN, ASADI CORDSHOOLI GHASEM, ZAKARIA SEYED AMIRABBAS, Zakaria Seyedeh Bahareh. Transition Metal Ion Effect on Ethanol Sensing of CeO2/TiO2 Core-shell at Room Temperature. JOURNAL OF APPLIED RESEARCHES IN CHEMISTRY (JARC)[Internet]. 2019;13(1 ):85-95. Available from: https://sid.ir/paper/180123/en

IEEE: Copy

SUSAN SAMADI, GHASEM ASADI CORDSHOOLI, SEYED AMIRABBAS ZAKARIA, and Seyedeh Bahareh Zakaria, “Transition Metal Ion Effect on Ethanol Sensing of CeO2/TiO2 Core-shell at Room Temperature,” JOURNAL OF APPLIED RESEARCHES IN CHEMISTRY (JARC), vol. 13, no. 1 , pp. 85–95, 2019, [Online]. Available: https://sid.ir/paper/180123/en

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