{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,21]],"date-time":"2026-02-21T17:37:32Z","timestamp":1771695452718,"version":"3.50.1"},"reference-count":32,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2020,6,3]],"date-time":"2020-06-03T00:00:00Z","timestamp":1591142400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>In this study, the sensitivity of reduced graphene oxide structures (rGO) to the action of selected gases (especially hydrogen, but also nitrogen dioxide and ammonia) was examined. Two sensing structures, based on rGO structures, obtained by different methods of oxidation (the modified Hummers, and the modified Tour\u2019s method respectively), were investigated. We show here that the method used for the oxidation of rGO influences the sensitivity of the sensing structure during contact with various gaseous atmospheres. We performed our experiments in the atmosphere, containing hydrogen in a concentration range from 0 to 4% in nitrogen or synthetic air, both in dry and wet conditions. The temperature range was from 50 \u00b0C to 190 \u00b0C. Finally, we checked how the resistance of the samples changes when the other gases (NO2, NH3) appear in tested gas mixtures. The gas investigations were supplemented by the characterization of rGOs materials using scanning electron microscopy (SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and N2 sorption method.<\/jats:p>","DOI":"10.3390\/s20113175","type":"journal-article","created":{"date-parts":[[2020,6,4]],"date-time":"2020-06-04T04:36:09Z","timestamp":1591245369000},"page":"3175","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":13,"title":["Comparison of Gas Sensing Properties of Reduced Graphene Oxide Obtained by Two Different Methods"],"prefix":"10.3390","volume":"20","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-5235-4335","authenticated-orcid":false,"given":"Sabina","family":"Drewniak","sequence":"first","affiliation":[{"name":"Department of Optoelectronics, Silesian University of Technology, 2 Krzywoustego St., 44-100 Gliwice, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5385-3774","authenticated-orcid":false,"given":"Marcin","family":"Procek","sequence":"additional","affiliation":[{"name":"Department of Optoelectronics, Silesian University of Technology, 2 Krzywoustego St., 44-100 Gliwice, Poland"},{"name":"Department of Electronics Design, Mid Sweden University, 85170 Sundsvall, Sweden"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Roksana","family":"Muzyka","sequence":"additional","affiliation":[{"name":"Institute for Chemical Processing of Coal, 1 Zamkowa St., 41-803 Zabrze, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Tadeusz","family":"Pustelny","sequence":"additional","affiliation":[{"name":"Department of Optoelectronics, Silesian University of Technology, 2 Krzywoustego St., 44-100 Gliwice, Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2020,6,3]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"47","DOI":"10.1016\/j.ssc.2007.03.052","article-title":"Raman spectroscopy of graphene and graphite: Disorder, electron-phonon coupling, doping and nonadiabatic effects","volume":"143","author":"Ferrari","year":"2007","journal-title":"Solid State Commun."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"613","DOI":"10.1080\/14686996.2018.1494493","article-title":"Structure of graphene and its disorders: A review","volume":"19","author":"Yang","year":"2018","journal-title":"Sci. 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