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Enhancement of hydrothermally Co3O4 thin films as H2S gas sensor by loading yttrium element
Other Title(s)
تحسين أغشية رقيقة Co3O4 مائيا حراريا كمتحسس لغاز H2S عن طريق تحميل عنصر الإيتريوم
Joint Authors
Ali, Iftikhar Mahmud
Hamdan, Suhad Abd al-Karim
Source
Issue
Vol. 16, Issue 1 (sup) (31 Mar. 2019), pp.221-229, 9 p.
Publisher
University of Baghdad College of Science for Women
Publication Date
2019-03-31
Country of Publication
Iraq
No. of Pages
9
Main Subjects
Topics
Abstract EN
The gas sensing properties of Co3O4 and Co3O4:Y nano structures were investigated.
The films were synthesized using the hydrothermal method on a seeded layer.
The XRD, SEM analysis and gas sensing properties were investigated for Co3O4 and Co3O4:Y thin films.
XRD analysis shows that all films are polycrystalline in nature, having a cubic structure, and the crystallite size is (11.7)nm for cobalt oxide and (9.3)nm for the Co3O4:10%Y.
The SEM analysis of thin films obviously indicates that Co3O4 possesses a nanosphere-like structure and a flower-like structure for Co3O4:Y.
The sensitivity, response time and recovery time to a H2S reducing gas were tested at different operating temperatures.
The resistance changes with exposure to the test gas.
The results reveal that the Co3O4:10%Y possesses the highest sensitivity around 80% at a 100oC operating temperature when exposed to the reducing gas H2S with 0.8sec for both recovery and response times.
American Psychological Association (APA)
Hamdan, Suhad Abd al-Karim& Ali, Iftikhar Mahmud. 2019. Enhancement of hydrothermally Co3O4 thin films as H2S gas sensor by loading yttrium element. Baghdad Science Journal،Vol. 16, no. 1 (sup), pp.221-229.
https://search.emarefa.net/detail/BIM-880895
Modern Language Association (MLA)
Hamdan, Suhad Abd al-Karim& Ali, Iftikhar Mahmud. Enhancement of hydrothermally Co3O4 thin films as H2S gas sensor by loading yttrium element. Baghdad Science Journal Vol. 16, no. 1 (Supplement) (2019), pp.221-229.
https://search.emarefa.net/detail/BIM-880895
American Medical Association (AMA)
Hamdan, Suhad Abd al-Karim& Ali, Iftikhar Mahmud. Enhancement of hydrothermally Co3O4 thin films as H2S gas sensor by loading yttrium element. Baghdad Science Journal. 2019. Vol. 16, no. 1 (sup), pp.221-229.
https://search.emarefa.net/detail/BIM-880895
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 228
Record ID
BIM-880895