{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,10]],"date-time":"2025-10-10T01:29:09Z","timestamp":1760059749707,"version":"build-2065373602"},"reference-count":42,"publisher":"MDPI AG","issue":"13","license":[{"start":{"date-parts":[[2025,7,4]],"date-time":"2025-07-04T00:00:00Z","timestamp":1751587200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Specialized fund for the Doctoral of Kaili University","award":["BS202502013","52205597"],"award-info":[{"award-number":["BS202502013","52205597"]}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["BS202502013","52205597"],"award-info":[{"award-number":["BS202502013","52205597"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>The influence of Cd doping on the performance of ZnSn(OH)6 (ZHS) as a gas sensor was systematically investigated through experimental and theoretical approaches. ZHS and Cd-doped ZHS samples were synthesized using the hydrothermal method. The microstructures of pure and Cd-doped ZHS were characterized using various techniques. The results revealed that the pure ZHS sample exhibits good crystallinity and an octahedral morphology with particle sizes ranging from 800 to 1900 nm. After Cd doping, the particle size range was decreased to 700\u20131500 nm. A systematic investigation of the gas-sensing properties revealed that Cd-doped ZHS exhibits superior sensing performance toward ethanol gas compared to pure ZHS. Under operating conditions of 240 \u00b0C, 100 ppm concentration, and 30% relative humidity, the response of ZHS to ethanol gas exhibited a significantly higher value compared to other tested gases. After Cd doping, the response approximately doubled. Density functional theory calculations of electronic structures revealed that the enhanced ethanol sensing mechanism of Cd-doped ZHS is attributed to the narrowed band gap caused by Cd doping, which increases electron concentration and enhances O\u2212 ion adsorption on the surface.<\/jats:p>","DOI":"10.3390\/ma18133176","type":"journal-article","created":{"date-parts":[[2025,7,4]],"date-time":"2025-07-04T11:20:11Z","timestamp":1751628011000},"page":"3176","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Effect of Cd Doping on the Gas-Sensitive Properties of ZnSn(OH)6"],"prefix":"10.3390","volume":"18","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0317-1561","authenticated-orcid":false,"given":"Yufeng","family":"Wen","sequence":"first","affiliation":[{"name":"School of Science, Kaili University, Kaili 556011, China"},{"name":"School of Mathematical Sciences and Physics, Jinggangshan University, Ji\u2019an 343009, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yanlin","family":"Yu","sequence":"additional","affiliation":[{"name":"School of Science, Kaili University, Kaili 556011, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Huaizhang","family":"Gu","sequence":"additional","affiliation":[{"name":"School of Science, Kaili University, Kaili 556011, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Guilian","family":"Wang","sequence":"additional","affiliation":[{"name":"School of Electronic and Electrical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4078-7664","authenticated-orcid":false,"given":"Fangqiang","family":"Yuan","sequence":"additional","affiliation":[{"name":"School of Electronic and Electrical Engineering, Zibo Vocational University, Zibo 255300, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2025,7,4]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"15782","DOI":"10.1039\/C9TA03504D","article-title":"Constructing Z-scheme SnO2\/N-doped carbon quantum dots\/ZnSn(OH)6 nanohybrids with high redox ability for NOx removal under VIS-NIR light","volume":"7","author":"Lu","year":"2019","journal-title":"J. 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