Evaluation of the performance of a graphene oxide microstrip antenna-based sensor for CO2 gas sensing

被引：0
|
作者：
Costa do Nascimento, João Paulo [1 ,2 ]
do Carmo, Felipe Felix [1 ]
Mangueira Sales, Antonio Jefferson [1 ]
Sales, Juscelino Chaves [4 ]
da Costa Júnior, Antonio Eufrazio [3 ]
da Silva Clemente, Claudenilson [3 ]
Mazzetto, Selma Elaine [3 ]
Bezerra Sombra, Antonio Sergio [1 ]
机构：
[1] LOCEM-Telecommunication and Materials Science and Engineering of Laboratory (LOCEM), Physics Department, Federal University of Ceará (UFC), Campus PICI, P.O. Box 6030, Ceará, Fortaleza,60455-760, Brazil
[2] Federal Institute of Education, Science and Technology of Ceará, PPGET, Ceará, Fortaleza, Brazil
[3] Laboratório de Produtos e Tecnologia em Processos (LPT) - Departamento de Química Orgânica e Inorgânica, Universidade Federal do Ceará, 6021, CE, Fortaleza,60440-900, Brazil
[4] State University of Vale do Acaraú, Center for Exact Sciences and Technology, Department of Civil Engineering, Brazil
来源：
Materials Letters | 2025年 / 385卷
关键词：
Graphene oxide;
D O I：
10.1016/j.matlet.2025.138204
中图分类号：
学科分类号：
摘要：
In this paper, the evaluation of a novel Graphene Oxide (GO) sensor based on a microstrip antenna was employing detecting of CO2 concentration is presented. GO was employed as sensing element of the evaluated sensor, whereas it was obtained from natural graphite employing modified Hummers method. Sensing tests with the device developed were performed using CO2 gas, whereas it is observed that with the increase in gas concentration the operating frequency shifts to higher frequency. Analysing the results of the sensing tests, it is possible to note that the device presented sensitivity of 1.74 kHz/ppm of CO2, demonstrating that the developed sensor has potential to be applied in medical equipment, as well as industrial and residential security applications. © 2025 Elsevier B.V.
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