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

被引：0

作者：

do Nascimento, Joao Paulo Costa ^{[1
,2
]}

do Carmo, Felipe Felix ^{[1
]}

Sales, Antonio Jefferson Mangueira ^{[1
]}

Sales, Juscelino Chaves ^{[4
]}

da Costa Junior, Antonio Eufrazio ^{[3
]}

Clemente, Claudenilson da Silva ^{[3
]}

Mazzetto, Selma Elaine ^{[3
]}

Sombra, Antonio Sergio Bezerra ^{[1
]}

机构：

[1] Fed Univ Ceara UFC, Phys Dept, LOCEM Telecommun & Mat Sci & Engn Lab LOCEM, Campus PICI,POB 6030, BR-60455760 Fortaleza, CE, Brazil

[2] Fed Inst Educ Sci & Technol Ceara PPGET, Fortaleza, CE, Brazil

[3] Univ Fed Ceara, Dept Quim Organ & Inorgan, Lab Prod & Tecnol Proc LPT, Fortaleza, CE, Brazil

[4] State Univ Vale Acarau, Ctr Exact Sci & Technol, Sobral, CE, Brazil

来源：

MATERIALS LETTERS | 2025年 / 385卷

关键词：

CO2 gas sensor; Security applications; Graphene oxide microstrip antenna-based; sensor; MECHANISM;

D O I：

10.1016/j.matlet.2025.138204

中图分类号：

T [工业技术];

学科分类号：

08 ;

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.

引用

页数：3

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