Work

Selective Carbon Monoxide-Gas-Sensing Properties over CuO/Rb2CO3 Nanohybrid Structure

Year: 2024

Type: article

Abstract: CuO/Rb2CO3 nanohybrid structures are fabricated, and their selectivity to CO over H2 as well as related sensing mechanisms are investigated. A series of CuO/Rb2CO3 nanohybrid structures are deposited on alumina substrates by the bar-coating method. The chemical, morphological, and structural properties of the nanohybrid structures are examined by scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), X-ray diffraction (XRD), and Raman spectroscopy. The best selectivity to CO over H2 and highest CO response level are observed upon CuO/Rb2CO3 nanohybrid (5 wt.% Rb2CO3). The gas-sensing performance of the CuO/Rb2CO3 hybrid nanostructures is analyzed to prove that the catalytic properties of Rb2CO3 and its modulation ability to hole accumulation layer thickness of CuO determine the outstanding selectivity and high response level of CuO/Rb2CO3 nanohybrid structure compared to pristine CuO nanoparticles.

Source: Diffusion and defect data, solid state data. Part B, Solid state phenomena/Solid state phenomena

DOI: 10.4028/p-zmf1pl

Authors: Manh Hung Nguyen, Manh Hung Nguyen, Van Hoang Nguyen, Tien Hung Pham, Dinh Hoat Phung, Minh Hieu Nguyen, Minh Hieu Nguyen

Institutions: Le Quy Don Technical University, Phenikaa University

Language: English

Topic: Gas Sensing Nanomaterials and Sensors

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

OpenAlex ID: W4405762802

FWCI:

Cites: 12

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Related to: 10