{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,17]],"date-time":"2026-01-17T19:15:11Z","timestamp":1768677311506,"version":"3.49.0"},"reference-count":16,"publisher":"MDPI AG","issue":"3","license":[{"start":{"date-parts":[[2012,3,7]],"date-time":"2012-03-07T00:00:00Z","timestamp":1331078400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>The detection of partial discharge through analysis of SF6 gas components in gas-insulated switchgear, is significant for the diagnosis and assessment of the operating state of power equipment. The present study proposes the use of a TiO2 nanotube array sensor for detecting the SF6 decomposition product SO2, and the application of the anodic oxidation method for the directional growth of highly ordered TiO2 nanotube arrays. The sensor response of 10\u201350 ppm SO2 gas is tested, and the sensitive response mechanism is discussed. The test results show that the TiO2 nanotube sensor array has good response to SO2 gas, and by ultraviolet radiation, the sensor can remove attached components very efficiently, shorten recovery time, reduce chemical poisoning, and prolong the life of the components.<\/jats:p>","DOI":"10.3390\/s120303302","type":"journal-article","created":{"date-parts":[[2012,3,7]],"date-time":"2012-03-07T12:43:39Z","timestamp":1331124219000},"page":"3302-3313","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":108,"title":["TiO2 Nanotube Array Sensor for Detecting the SF6 Decomposition Product SO2"],"prefix":"10.3390","volume":"12","author":[{"given":"Xiaoxing","family":"Zhang","sequence":"first","affiliation":[{"name":"State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jinbin","family":"Zhang","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yichao","family":"Jia","sequence":"additional","affiliation":[{"name":"College of Mathematics and Physics, Chongqing University, Chongqing 400044, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Peng","family":"Xiao","sequence":"additional","affiliation":[{"name":"College of Mathematics and Physics, Chongqing University, Chongqing 400044, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ju","family":"Tang","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2012,3,7]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"234","DOI":"10.1109\/94.841815","article-title":"Ifluence of reactive SFX gases on electrode surfaces after electrical discharges under SF6 atmosphere","volume":"7","author":"Beyer","year":"2000","journal-title":"IEEE Trans. Dielectr. Electr. Insul"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"267","DOI":"10.1063\/1.1288407","article-title":"Electron interactions with SF6","volume":"29","author":"Christophorou","year":"2000","journal-title":"J. Phys. Chem. Ref. Data"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"505","DOI":"10.1016\/S0022-2860(00)00847-4","article-title":"Quantitative infrared spectroscopic analysis of SF6 decomposition products obtained by electrical partial discharges and sparks using PLS-calibrations","volume":"565\u2013566","author":"Kurte","year":"2001","journal-title":"J. Mol. Struct"},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"164","DOI":"10.1016\/S0925-4005(04)00415-0","article-title":"Detection of partial discharge in SF6 gas using a carbon nanotube-based gas sensor","volume":"2","author":"Suehiro","year":"2005","journal-title":"Sens. Actuat. B"},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"833","DOI":"10.1109\/TDEI.2010.5492256","article-title":"Study on PD detection in SF6 using multi-wall carbon nanotube gas sensor","volume":"17","author":"Zhang","year":"2010","journal-title":"IEEE Trans. Dielectr. Electr. Insul"},{"key":"ref_6","unstructured":"Piemontesi, M., and Niemeyer, L. (1996, January 16\u201319). Sorption of SF6 and SF6 Decomposition Products by Activated Alumina and Molecular Sieve 13X. Montreal, QC, Canada."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"234","DOI":"10.1109\/94.841815","article-title":"Influence of reactive SFx gases on electrode surfaces after electrical discharges under SF6 atmosphere","volume":"7","author":"Beyer","year":"2000","journal-title":"IEEE Trans. Dielectr. Electr. Insul"},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"191","DOI":"10.1021\/nl048301k","article-title":"Enhanced photocleavage of water using Titania nanotube arrays","volume":"5","author":"Mor","year":"2005","journal-title":"Nano Lett"},{"key":"ref_9","unstructured":"Grimes, C.A., and Mor, G.K. (2009). TiO2 NT Arrays Synthesis, Properties, and Applications, Springer."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"192","DOI":"10.1016\/j.proche.2009.07.048","article-title":"Detection of organic gases using TiO2 nanotube-based gas sensors","volume":"1","author":"Seo","year":"2009","journal-title":"Procedia Chem"},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"505","DOI":"10.1016\/j.snb.2011.02.046","article-title":"A selective room temperature formaldehyde gas sensor using TiO2 nanotube arrays","volume":"156","author":"Lin","year":"2011","journal-title":"Sens. Actuat. B"},{"key":"ref_12","unstructured":"Yun, H. (2005). Preparation of NO2 Gas Sensor Based on TiO2 Nanotubes. M.S. Thesis,."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"338","DOI":"10.1016\/S0925-4005(03)00222-3","article-title":"Hydrogen sensing using Titania nanotubes","volume":"93","author":"Varghese","year":"2003","journal-title":"Sens. Actuat. B"},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"2011","DOI":"10.1016\/j.solmat.2006.04.007","article-title":"A review on highly ordered, vertically oriented TiO2 nanotube arrays: Fabrication, material properties, and solar energy applications","volume":"90","author":"Mor","year":"2006","journal-title":"Sol. Energy Mater. Sol. Cells"},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"509","DOI":"10.1016\/S0925-4005(03)00183-7","article-title":"Cr-doped TiO2 gas sensor for exhaust NO2 monitoring","volume":"93","author":"Ruiz","year":"2003","journal-title":"Sens. Actuat. 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