{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,26]],"date-time":"2026-09-26T20:09:07Z","timestamp":1790453347403,"version":"4.1.0"},"reference-count":46,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2025,1,10]],"date-time":"2025-01-10T00:00:00Z","timestamp":1736467200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100012190","name":"Ministry of Science and Higher Education of the Russian Federation","doi-asserted-by":"publisher","award":["075-15-2024-646"],"award-info":[{"award-number":["075-15-2024-646"]}],"id":[{"id":"10.13039\/501100012190","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>ZnO\/MOx (M = FeIII, CoII,III, NiII, SnIV, InIII, GaIII; [M]\/([Zn] + [M]) = 15 mol%) nanofiber heterostructures were obtained by co-electrospinning and characterized by X-ray diffraction, scanning electron microscopy and X-ray fluorescence spectroscopy. The sensor properties of ZnO and ZnO\/MOx nanofibers were studied toward reducing gases CO (20 ppm), methanol (20 ppm), acetone (20 ppm), and oxidizing gas NO2 (1 ppm) in dry air. It was demonstrated that the temperature of the maximum sensor response of ZnO\/MOx nanofibers toward reducing gases is primarily influenced by the binding energy of chemisorbed oxygen with the surface of the modifier\u2019s oxides. When detecting oxidizing gas NO2, high sensitivity at a low measurement temperature can be achieved with a high concentration of free electrons in the near-surface layer of zinc oxide grains, which is determined by the band bending at the ZnO\/MOx interface characterized by the difference in the electron work function of ZnO and MOx.<\/jats:p>","DOI":"10.3390\/s25020376","type":"journal-article","created":{"date-parts":[[2025,1,10]],"date-time":"2025-01-10T03:48:11Z","timestamp":1736480891000},"page":"376","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["ZnO\/MOx Nanofiber Heterostructures: MOx Receptor\u2019s Role in Gas Detection"],"prefix":"10.3390","volume":"25","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2151-9592","authenticated-orcid":false,"given":"Vadim","family":"Platonov","sequence":"first","affiliation":[{"name":"Chemistry Department, Moscow State University, Moscow 119991, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Oleg","family":"Sinyashin","sequence":"additional","affiliation":[{"name":"Federal Research Center Kazan Scientific Center RAS, Kazan 420111, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3354-0885","authenticated-orcid":false,"given":"Marina","family":"Rumyantseva","sequence":"additional","affiliation":[{"name":"Chemistry Department, Moscow State University, Moscow 119991, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2025,1,10]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"128980","DOI":"10.1016\/j.snb.2020.128980","article-title":"Comparison of Au-functionalized semiconductor metal oxides in sensitivity to VOC","volume":"326","author":"Marikutsa","year":"2021","journal-title":"Sens. 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