{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,30]],"date-time":"2026-09-30T15:35:46Z","timestamp":1790782546169,"version":"4.1.0"},"reference-count":49,"publisher":"MDPI AG","issue":"24","license":[{"start":{"date-parts":[[2021,12,16]],"date-time":"2021-12-16T00:00:00Z","timestamp":1639612800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100006769","name":"Russian Science Foundation","doi-asserted-by":"publisher","award":["19-19-00357"],"award-info":[{"award-number":["19-19-00357"]}],"id":[{"id":"10.13039\/501100006769","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>This paper presents a comparative analysis of H2S sensor properties of nanocrystalline SnO2 modified with Ag nanoparticles (AgNPs) as reference sample or Ag organic complexes (AgL1 and AgL2). New hybrid materials based on SnO2 and Ag(I) organometallic complexes were obtained. The microstructure, compositional characteristics and thermal stability of the composites were thoroughly studied by X-ray diffraction (XRD), X-ray fluorescent spectroscopy (XRF), Raman spectroscopy, Fourier transform infrared (FTIR) spectroscopy, X-ray photoelectron spectroscopy (XPS) and Thermogravimetric analysis (TGA). Gas sensor properties to 2 ppm H2S demonstrated high sensitivity, selectivity toward other reducing gases (H2 (20 ppm), NH3 (20 ppm) and CO (20 ppm)) and good reproducibility of the composites in H2S detection at low operating temperatures. The composite materials also showed a linear detection range in the concentration range of 0.12\u20132.00 ppm H2S even at room temperature. It was concluded that the predominant factors influencing the sensor properties and selectivity toward H2S in low temperature region are the structure of the modifier and the chemical state of silver. Thus, in the case of SnO2\/AgNPs reference sample the chemical sensitization mechanism is more possible, while for SnO2\/AgL1 and SnO2\/AgL2 composites the electronic sensitization mechanism contributes more in gas sensor properties. The obtained results show that composites based on nanocrystalline SnO2 and Ag(I) organic complexes can enhance the selective detection of H2S.<\/jats:p>","DOI":"10.3390\/ma14247778","type":"journal-article","created":{"date-parts":[[2021,12,16]],"date-time":"2021-12-16T21:32:40Z","timestamp":1639690360000},"page":"7778","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["Nanocrystalline SnO2 Functionalized with Ag(I) Organometallic Complexes as Materials for Low Temperature H2S Detection"],"prefix":"10.3390","volume":"14","author":[{"given":"Timofei","family":"Goncharov","sequence":"first","affiliation":[{"name":"Faculty of Materials Science, Moscow State University, 119991 Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5133-4009","authenticated-orcid":false,"given":"Abulkosim","family":"Nasriddinov","sequence":"additional","affiliation":[{"name":"Faculty of Materials Science, Moscow State University, 119991 Moscow, Russia"},{"name":"Chemistry Department, Moscow State University, 119991 Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4707-3875","authenticated-orcid":false,"given":"Anastasia","family":"Zubenko","sequence":"additional","affiliation":[{"name":"A.N. Nesmeyanov Institute of Organoelement Compounds RAS, 119991 Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5585-2823","authenticated-orcid":false,"given":"Sergey","family":"Tokarev","sequence":"additional","affiliation":[{"name":"A.N. Nesmeyanov Institute of Organoelement Compounds RAS, 119991 Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4304-8624","authenticated-orcid":false,"given":"Tatyana","family":"Shatalova","sequence":"additional","affiliation":[{"name":"Chemistry Department, Moscow State University, 119991 Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-8011-4635","authenticated-orcid":false,"given":"Nikolay","family":"Khmelevsky","sequence":"additional","affiliation":[{"name":"LISM, Moscow State Technological University Stankin, 127055 Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Olga","family":"Fedorova","sequence":"additional","affiliation":[{"name":"A.N. Nesmeyanov Institute of Organoelement Compounds RAS, 119991 Moscow, 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, 119991 Moscow, Russia"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2021,12,16]]},"reference":[{"key":"ref_1","unstructured":"(2021, November 16). Toxicological Profile for Hydrogen Sulfide and Carbonyl Sulfide. Agency for Toxic Substances and Disease Registry (ATSDR), Available online: https:\/\/www.atsdr.cdc.gov\/toxprofiles\/tp114.pdf."},{"key":"ref_2","unstructured":"Davies, D.B., and Haggerty, S.E. (2002). Health Effects Associated with Short-Term Exposure to Low levels of Hydrogen Sulphide (H2S)\u2014A Technical Review, Cantox Environmental Inc. 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