{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,8]],"date-time":"2025-11-08T17:51:11Z","timestamp":1762624271695,"version":"build-2065373602"},"reference-count":14,"publisher":"MDPI AG","issue":"21","license":[{"start":{"date-parts":[[2019,11,3]],"date-time":"2019-11-03T00:00:00Z","timestamp":1572739200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["61575151"],"award-info":[{"award-number":["61575151"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100003819","name":"Natural Science Foundation of Hubei Province","doi-asserted-by":"publisher","award":["2018CFB551"],"award-info":[{"award-number":["2018CFB551"]}],"id":[{"id":"10.13039\/501100003819","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>\u03b1-MoO3 has been used as a hydrogen sensing material due to its excellent properties and unique crystalline layer structure. However, the low repeatability of \u03b1-MoO3 based hydrogen sensor restricts its practical application. In this paper, the effect of intercalated ion species and the amount in \u03b1-MoO3 is experimentally investigated and discussed. It is concluded that the repeatability of the sensor depends on the radius of intercalated ions and amount of ionic bonds. The optimal ion species is Na+ and the optimal amount of precursor is 1 mmol.<\/jats:p>","DOI":"10.3390\/s19214775","type":"journal-article","created":{"date-parts":[[2019,11,4]],"date-time":"2019-11-04T04:13:08Z","timestamp":1572840788000},"page":"4775","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Investigations of Different Ion Intercalations on the Performance of FBG Hydrogen Sensors Based on Pt\/MoO3"],"prefix":"10.3390","volume":"19","author":[{"given":"Gaopeng","family":"Wang","sequence":"first","affiliation":[{"name":"National Engineering Laboratory for Fiber Optic Sensing Technology, Wuhan University of Technology, Wuhan 430070, China"}]},{"given":"Shiwen","family":"Yang","sequence":"additional","affiliation":[{"name":"National Engineering Laboratory for Fiber Optic Sensing Technology, Wuhan University of Technology, Wuhan 430070, China"}]},{"given":"Jixiang","family":"Dai","sequence":"additional","affiliation":[{"name":"National Engineering Laboratory for Fiber Optic Sensing Technology, Wuhan University of Technology, Wuhan 430070, China"}]},{"given":"Yutang","family":"Dai","sequence":"additional","affiliation":[{"name":"National Engineering Laboratory for Fiber Optic Sensing Technology, Wuhan University of Technology, Wuhan 430070, China"}]},{"given":"Tong","family":"Zou","sequence":"additional","affiliation":[{"name":"Institute of Seismology, China Earthquake Administration, Wuhan 430071, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6525-4544","authenticated-orcid":false,"given":"Johannes","family":"Roths","sequence":"additional","affiliation":[{"name":"Munich University of Applied Sciences, Lothstr. 34, D-80335 Munich, Germany"}]},{"given":"Minghong","family":"Yang","sequence":"additional","affiliation":[{"name":"National Engineering Laboratory for Fiber Optic Sensing Technology, Wuhan University of Technology, Wuhan 430070, China"}]}],"member":"1968","published-online":{"date-parts":[[2019,11,3]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1007","DOI":"10.1063\/1.95060","article-title":"Optical fiber hydrogen sensor","volume":"45","author":"Butler","year":"1984","journal-title":"Appl. Phys. Lett."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"5487","DOI":"10.1364\/OE.27.005487","article-title":"Effect of hydrogen gas on FBG-based optical fiber sensors for downhole pressure and temperature monitoring","volume":"27","author":"Huang","year":"2019","journal-title":"Opt. Express"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"2166","DOI":"10.1109\/JLT.2018.2807789","article-title":"Improving the sensitivity of Palladium-based fiber optic hydrogen sensors","volume":"36","author":"Fisser","year":"2018","journal-title":"J. Light. Technol."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"20386","DOI":"10.1016\/j.ijhydene.2017.06.066","article-title":"Hydrogen sensors based on noble metal doped metal-oxide semiconductor: A review","volume":"42","author":"Luo","year":"2017","journal-title":"Int. J. 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