ZnO nanorods/Graphene/CNT nanocomposite gas sensors for enhanced VOC gas response and selectivity: Selective analysis of formaldehyde and ethanol
Year: 2025
Type: article
Abstract: In this study, a ZnO nanorods/Graphene/Carbon nanotube (CNT) sensor was fabricated by synthesizing ZnO nanorods through the ultrasonic chemical method, followed by spin-coating with a graphene/CNT composite. Sensors (C1–C3) using ZnO nanorods/Graphene/CNT nanocomposites were prepared with graphene to CNT coating ratios of 9:1, 8:2, and 7:3, respectively, and their response were analyzed. The amount of material deposited during spin-coating more notably influenced the synergic effect of graphene/CNT and ZnO nanorods in sample C1. Sample C1 exhibited a response of 80 for 20 ppm formaldehyde at an operating temperature of 250 °C and displayed selectivity compared with ethanol. Overall, C1 exhibited the strongest reactivity and selectivity toward formaldehyde at 20 ppm.
Authors: Anthony Fon Tangoh, Jaebum Park, Noel Ngando Same, Abdulfatai Olatunji Yakub, Deepak Chaulagain, Jong Wook Roh, Dongjun Suh, Jeong Ok Lim, Jeung Soo Huh
Institution: Kyungpook National University
Language: English
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $3,140
Award: G4868578049
OpenAlex ID: W4414223406