Development of a Humidity Sensor Based on a Conductive Composite Polystyrene/Polypyrrole-Montmorillonite
We report the development and characterization of flexible polystyrene/polypyrrole-organophilic montmorillonite (PS/PPy-OMMT) membranes tailored for resistive humidity sensing applications. The membranes were produced by electrospinning polystyrene (PS), followed by in situ incorporation of polypyrrole (PPy) and organophilic montmorillonite (OMMT). The successful integration of PPy and OMMT on the PS fiber surfaces was confirmed by Fourier Transform Infrared Spectroscopy (FTIR), Scanning Electron Microscopy (SEM), X-ray Diffractometry (XRD), and Energy Dispersive X-ray Spectroscopy (EDX) analyses. The resulting membranes showed a strong sensor response of 397% over a relative humidity range of 11% to 97%, highlighting their potential for advanced humidity sensing applications.
Authors
- Lúcio Flávio Moreira Cavalcanti (ORCID: https://orcid.org/0000-0002-3505-0986)
- Maurício F. de Aguiar (ORCID: https://orcid.org/0000-0002-2395-0258)
- Mônica Ferreira De Brito Rocha (ORCID: https://orcid.org/0000-0002-0703-5260)
- Dáfenes Beatriz Rodrigues dos Santos Silva
- Kleber Gonçalves Bezerra Alves (ORCID: https://orcid.org/0000-0002-2671-0911)
- Celso P. de Melo (ORCID: https://orcid.org/0000-0002-2715-2448)
- Andressa Nathally Rocha Leal (ORCID: https://orcid.org/0000-0001-9920-1096)
- Ezequiel de Araújo Silva (ORCID: https://orcid.org/0009-0009-1314-3143)
Institutions
- Universidade Federal de Pernambuco (BR)
Publication Details
- Journal
- Materials Research
- Published
- 2025-01-01
- DOI
- https://doi.org/10.1590/1980-5373-mr-2025-0175
- Primary Topic
- Gas Sensing Nanomaterials and Sensors
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Conselho Nacional de Desenvolvimento Científico e Tecnológico
- Fundação de Amparo à Ciência e Tecnologia do Estado de Pernambuco