LE QUY DON
Technical University
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pn-Heterojunction of the SWCNT/ZnO nanocomposite for temperature dependent reaction with hydrogen

Duc Chinh, N. and Haneul, Y. and Minh Hieu, N. and Manh Hung, N. and Duc Quang, N. and Kim, C. and Kim, D. (2021) pn-Heterojunction of the SWCNT/ZnO nanocomposite for temperature dependent reaction with hydrogen. Journal of Colloid and Interface Science, 584. pp. 582-591. ISSN 219797

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Abstract

A hydrogen breath test is a non-invasive and safe diagnostic tool to explore the functional gastrointestinal disorders. For the diagnosis of small intestinal bacterial overgrowth syndrome as well as carbohydrate malabsorption such as fructose, lactose, and sorbitol malabsorption, a hydrogen breath test is considered one of the gold criterions. Since the more sensitive hydrogen sensor enables the more accurate prediction about the disease, many efforts have been to the development of the high performance H2 sensor. Herein, we fabricate the pn-junction type composite sensors using single wall carbon nanotube (SWCNT) and zinc oxide and thoroughly investigate their hydrogen sensing properties at various temperatures. We discuss the origin of sensing performance enhancement mechanism in the composite sensors, while the composite sensor with high H2 sensing performance, linearity, repeatability, and selectivity can be prepared. © 2020 Elsevier Inc.

Item Type: Article
Divisions: Faculties > Faculty of Physical and Chemical Engineering
Identification Number: 10.1016/j.jcis.2020.10.017
Uncontrolled Keywords: Chemical sensors; Diagnosis; Heterojunctions; II-VI semiconductors; Single-walled carbon nanotubes (SWCN); Zinc oxide; Accurate prediction; Composite sensors; Diagnostic tools; Gastrointestinal disorders; Hydrogen sensing properties; P-n heterojunctions; Sensing performance; Temperature dependent; Hydrogen; hydrogen; nanocomposite; single walled nanotube; zinc oxide nanoparticle; Article; crystal structure; current voltage; electric conductance; electric conductivity; electrical potential parameters; field emission scanning electron microscopy; field emission transmission electron microscopy; humidity; linear system; measurement repeatability; nanofabrication; priority journal; Raman spectrometry; reaction temperature; room temperature; surface property; temperature dependence; transmission electron microscopy; X ray diffraction; X ray photoemission spectroscopy
Additional Information: Language of original document: English.
URI: http://eprints.lqdtu.edu.vn/id/eprint/8688

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