{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,29]],"date-time":"2026-05-29T19:28:53Z","timestamp":1780082933773,"version":"3.54.0"},"reference-count":35,"publisher":"MDPI AG","issue":"5","license":[{"start":{"date-parts":[[2026,3,2]],"date-time":"2026-03-02T00:00:00Z","timestamp":1772409600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100020771","name":"Young Scientists Fund of the National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["52404213"],"award-info":[{"award-number":["52404213"]}],"id":[{"id":"10.13039\/501100020771","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100007620","name":"Liaoning Provincial Education Department","doi-asserted-by":"crossref","award":["LJ212410147087"],"award-info":[{"award-number":["LJ212410147087"]}],"id":[{"id":"10.13039\/501100007620","id-type":"DOI","asserted-by":"crossref"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["52274084"],"award-info":[{"award-number":["52274084"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"name":"Open Fund of the National Key Laboratory of Coal Mine Disaster Prevention and Control","award":["2025KLKF14"],"award-info":[{"award-number":["2025KLKF14"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Molecules"],"abstract":"<jats:p>One of the primary causes of casualties as a result of underground coal mine disasters is the generation of high concentrations of carbon monoxide (CO). In this study, a copper (Cu)\u2013manganese (Mn)\u2013tin (Sn) composite oxide catalyst was prepared using the co-precipitation method, and the effects of CO concentration (1\u20137%), reaction temperature (25\u2013300 \u00b0C), and water poisoning degree (0\u2013100%) on CO catalytic oxidation performance were systematically investigated using a dynamic activity testing system. The results demonstrated that within the CO concentration range of 1\u20137%, the catalyst was able to reduce the CO concentration to below 0.55% in a maximum of 248 s and maintain this level in a relatively stable state. Meanwhile, both the catalytic activity and maximum instantaneous reaction rate exhibited a linear increase with the rise in the CO concentration. Elevated temperature significantly shortened the equilibrium time and reduced the equilibrium concentration, achieving 99.99% elimination efficiency at 300 \u00b0C; however, catalyst activity decreased with increasing temperature due to adsorption step limitations. Water poisoning severely affected catalyst performance, with activity, elimination efficiency, and long-term stability exhibiting exponential decay as the water poisoning degree increased, with the most significant performance decline occurring in the 0\u201360% range. Based on the dynamic gas concentration analysis, the CO oxidation process with this catalyst exhibited characteristics consistent with the Mars\u2013van Krevelen mechanism. These findings provide an experimental basis for evaluating the applicability of Sn-containing catalysts in extreme underground coal mine environments.<\/jats:p>","DOI":"10.3390\/molecules31050838","type":"journal-article","created":{"date-parts":[[2026,3,4]],"date-time":"2026-03-04T16:17:31Z","timestamp":1772641051000},"page":"838","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Effects of Typical Underground Coal Mine Environmental Factors on CO Oxidation Performance of Sn-Containing Catalyst"],"prefix":"10.3390","volume":"31","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-2965-2921","authenticated-orcid":false,"given":"Tianyu","family":"Xin","sequence":"first","affiliation":[{"name":"School of Safety Science and Engineering, Liaoning Technical University, Huludao 125100, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bing","family":"Liang","sequence":"additional","affiliation":[{"name":"School of Mechanics and Engineering, Liaoning Technical University, Fuxin 123000, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jiaxu","family":"Jin","sequence":"additional","affiliation":[{"name":"School of Architecture and Construction, Liaoning Technical University, Fuxin 123000, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gang","family":"Bai","sequence":"additional","affiliation":[{"name":"School of Safety Science and Engineering, Liaoning Technical University, Huludao 125100, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Junguang","family":"Wang","sequence":"additional","affiliation":[{"name":"School of Mechanics and Engineering, Liaoning Technical University, Fuxin 123000, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Qiang","family":"Liu","sequence":"additional","affiliation":[{"name":"School of Mechanics and Engineering, Liaoning Technical University, Fuxin 123000, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yashengnan","family":"Sun","sequence":"additional","affiliation":[{"name":"School of Safety Science and Engineering, Liaoning Technical University, Huludao 125100, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xihua","family":"Zhou","sequence":"additional","affiliation":[{"name":"School of Safety Science and Engineering, Liaoning Technical University, Huludao 125100, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2026,3,2]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"582","DOI":"10.1016\/j.jenvman.2018.10.045","article-title":"Analysis of the diversity in emissions of selected gaseous and particulate pollutants in the European Union countries","volume":"231","author":"Brodny","year":"2019","journal-title":"J. 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