{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,10]],"date-time":"2026-07-10T22:19:09Z","timestamp":1783721949211,"version":"3.55.0"},"reference-count":120,"publisher":"MDPI AG","issue":"14","license":[{"start":{"date-parts":[[2024,7,10]],"date-time":"2024-07-10T00:00:00Z","timestamp":1720569600000},"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>Ammonia (NH3) potentially harms human health, the ecosystem, industrial and agricultural production, and other fields. Therefore, the detection of NH3 has broad prospects and important significance. Ti3C2Tx is a common MXene material that is great for detecting NH3 at room temperature because it has a two-dimensional layered structure, a large specific surface area, is easy to functionalize on the surface, is sensitive to gases at room temperature, and is very selective for NH3. This review provides a detailed description of the preparation process as well as recent advances in the development of gas-sensing materials based on Ti3C2Tx MXene for room-temperature NH3 detection. It also analyzes the advantages and disadvantages of various preparation and synthesis methods for Ti3C2Tx MXene\u2019s performance. Since the gas-sensitive performance of pure Ti3C2Tx MXene regarding NH3 can be further improved, this review discusses additional composite materials, including metal oxides, conductive polymers, and two-dimensional materials that can be used to improve the sensitivity of pure Ti3C2Tx MXene to NH3. Furthermore, the present state of research on the NH3 sensitivity mechanism of Ti3C2Tx MXene-based sensors is summarized in this study. Finally, this paper analyzes the challenges and future prospects of Ti3C2Tx MXene-based gas-sensitive materials for room-temperature NH3 detection.<\/jats:p>","DOI":"10.3390\/s24144465","type":"journal-article","created":{"date-parts":[[2024,7,10]],"date-time":"2024-07-10T15:22:05Z","timestamp":1720624925000},"page":"4465","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":19,"title":["Research Progress on Ammonia Sensors Based on Ti3C2Tx MXene at Room Temperature: A Review"],"prefix":"10.3390","volume":"24","author":[{"ORCID":"https:\/\/orcid.org\/0009-0009-6445-6115","authenticated-orcid":false,"given":"Kaixin","family":"Cheng","sequence":"first","affiliation":[{"name":"School of Materials and Energy, Yunnan University, Kunming 650091, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xu","family":"Tian","sequence":"additional","affiliation":[{"name":"School of Materials and Energy, Yunnan University, Kunming 650091, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shaorui","family":"Yuan","sequence":"additional","affiliation":[{"name":"School of Materials and Energy, Yunnan University, Kunming 650091, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Qiuyue","family":"Feng","sequence":"additional","affiliation":[{"name":"School of Materials and Energy, Yunnan University, Kunming 650091, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5152-2667","authenticated-orcid":false,"given":"Yude","family":"Wang","sequence":"additional","affiliation":[{"name":"School of Materials and Energy, Yunnan University, Kunming 650091, China"},{"name":"Yunnan Key Laboratory of Carbon Neutrality and Green Low-Carbon Technologies, Yunnan University, Kunming 650091, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2024,7,10]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"27492","DOI":"10.1021\/acsomega.0c03981","article-title":"Chemoresistive room-temperature sensing of ammonia using zeolite imidazole framework and reduced graphene oxide (ZIF-67\/rGO) composite","volume":"5","author":"Garg","year":"2020","journal-title":"ACS Omega"},{"key":"ref_2","doi-asserted-by":"crossref","unstructured":"Yap, S.H.K., Chan, K.K., Tjin, S.C., and Yong, K.T. 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