{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,24]],"date-time":"2026-02-24T07:25:07Z","timestamp":1771917907151,"version":"3.50.1"},"reference-count":54,"publisher":"MDPI AG","issue":"8","license":[{"start":{"date-parts":[[2023,7,30]],"date-time":"2023-07-30T00:00:00Z","timestamp":1690675200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"FCT","award":["UI\/BD\/152285\/2021"],"award-info":[{"award-number":["UI\/BD\/152285\/2021"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Chemosensors"],"abstract":"<jats:p>Humidity sensors are of huge importance in diverse domains. Several types of materials present a moisture-sensing capacity; however, frequently, their electrical response does not display time stability. Due to its high thermal stability, high ionic conductivity, and different conduction mechanism contributing to its overall conductivity, polyantimonic acid (PAA) is seen as a promising material for humidity-sensing devices. In the present work, crystalline PAA was obtained via a simple and safe hydrolysis technique using SbCl3 as a precursor. Bulky sensor samples were produced using different amounts of polyvinyl alcohol (10\u201320 wt.% PVA) as a binder. The obtained PAA solid sensors were tested at room temperature (RT) in order to evaluate their moisture detection\/measuring ability in the relative humidity range 0\u2013100%; the evaluation was carried out with electrical impedance spectroscopy. The sample\u2019s structure and morphology were studied using diverse experimental techniques (porosimetry, scanning electron microscopy, X-ray diffraction analysis, and thermogravimetry analysis, etc.). The sensors\u2019 electrical response was in line with the found structural and morphological features. The slope of the resistance variation with an RH percentage concentration between 1 k\u2126 and 1.5 k\u2126 was noted for all sensors (showing no changes with time) in the interval between 30 and 100% RH. A good repeatability and reproducibility of the evaluated sensors\u2019 electrical response was observed: the ones that displayed a higher sensitivity were the ones with a high PVA binder content, higher than previously published results for PAA, as well as a very good time stability along the time and low hysteresis.<\/jats:p>","DOI":"10.3390\/chemosensors11080423","type":"journal-article","created":{"date-parts":[[2023,7,31]],"date-time":"2023-07-31T02:13:32Z","timestamp":1690769612000},"page":"423","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Enhancing Polyantimonic-Based Materials\u2019 Moisture Response with Binder Content Tuning"],"prefix":"10.3390","volume":"11","author":[{"given":"Sofia","family":"Mendes","sequence":"first","affiliation":[{"name":"CEMMPRE\u2014Electrical and Computer Engineering Department, University of Coimbra, FCTUC, Polo 2, Pinhal de Marrocos, 3030-290 Coimbra, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7148-7755","authenticated-orcid":false,"given":"Olga","family":"Kurapova","sequence":"additional","affiliation":[{"name":"Physical Chemistry Department, Saint Petersburg State University, Universitetskya Nab. 7\/9, 199034 Saint Petersburg, Russia"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5539-9766","authenticated-orcid":false,"given":"Pedro","family":"Faia","sequence":"additional","affiliation":[{"name":"CEMMPRE\u2014Electrical and Computer Engineering Department, University of Coimbra, FCTUC, Polo 2, Pinhal de Marrocos, 3030-290 Coimbra, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2023,7,30]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"274","DOI":"10.1166\/sl.2005.045","article-title":"Humidity Sensors: A Review of Materials and Mechanisms","volume":"3","author":"Chen","year":"2005","journal-title":"Sens. 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