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The present review explores perovskite La-Fe-O based gas sensors with a special focus on LaFeO3 and evaluates their sensitivity to a diverse range of practical target gases that need to be monitored. An analysis has been conducted to assess different routes not only of synthesizing LaFeO3 material but also of characterization with the targeted use for their gas sensing abilities. Additionally, a comprehensive analysis has been performed to explore the effect of introducing other elements through doping. In view of the LaFeO3 sensing performance, more common gases like acetone, ethanol, methanol, formaldehyde, NOx, and CO2 have been targeted. In addition, a discussion on uncommon gases such as CO, SO2, TEA, C2H5, C6H6, and others is also made to give a complete picture of LaFeO3-based gas sensors. The summary and conclusion section of the study addresses the primary obstacles in the synthesis process, the variables that restrict the sensing capabilities of LaFeO3, and its commercial fulfillment.<\/jats:p>","DOI":"10.1021\/acsomega.4c00334","type":"journal-article","created":{"date-parts":[[2024,7,1]],"date-time":"2024-07-01T00:51:37Z","timestamp":1719795097000},"page":"29994-30014","source":"Crossref","is-referenced-by-count":41,"title":["La-Fe\u2011O\nPerovskite Based Gas Sensors: Recent\nAdvances and Future Challenges"],"prefix":"10.1021","volume":"9","author":[{"given":"Suraj\nS.","family":"Patil","sequence":"first","affiliation":[{"name":"PAH Solapur University , , ,","place":["Solapur, India, 413255"]},{"name":"Yashavantrao Chavan Institute of Science , , ,","place":["Satara, India, 415001"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bapuso M.","family":"Babar","sequence":"additional","affiliation":[{"name":"Yashavantrao Chavan Institute of Science , , ,","place":["Satara, India, 415001"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2092-2590","authenticated-orcid":true,"given":"Digambar Y.","family":"Nadargi","sequence":"additional","affiliation":[{"name":"Centre for Materials for Electronics Technology, CMET , ,","place":["Thrissur, India, 680581"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Faiyyaj I.","family":"Shaikh","sequence":"additional","affiliation":[{"name":"Government Institute of Forensic Science , , ,","place":["Aurangabad, India, 431004"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jyoti D.","family":"Nadargi","sequence":"additional","affiliation":[{"name":"Santosh Bhimrao Patil College , , , ,","place":["Mandrup, Solapur, India, 413221"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Babasaheb R.","family":"Sankapal","sequence":"additional","affiliation":[{"name":"Visvesvaraya National Institute of Technology , , ,","place":["Nagpur, India, 440010"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Imtiaz S.","family":"Mulla","sequence":"additional","affiliation":[{"name":"Former Emeritus Scientist, NCL , ,","place":["Pune, India, 411008"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mohaseen S.","family":"Tamboli","sequence":"additional","affiliation":[{"name":"Korea Institute of Energy Technology (KENTECH) , 21 KENTECH-gil , , ,","place":["Naju, Jeollanam-do, Republic of Korea, 58330"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nguyen Tam","family":"Nguyen Truong","sequence":"additional","affiliation":[{"name":"Yeungnam University , , , ,","place":["Gyeongsan, Korea, 38541"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3996-1998","authenticated-orcid":true,"given":"Sharad S.","family":"Suryavanshi","sequence":"additional","affiliation":[{"name":"PAH Solapur University , , ,","place":["Solapur, India, 413255"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"316","published-online":{"date-parts":[[2024,7,1]]},"reference":[{"key":"2026081708340786300_cit1","doi-asserted-by":"publisher","first-page":"105369","DOI":"10.1016\/j.nanoen.2020.105369","article-title":"Recent\nAdvances in Energy-Saving Chemi-resistive Gas Sensors: A Review","volume":"79","author":"Majhi","year":"2021","journal-title":"Nano Energy"},{"key":"2026081708340786300_cit2","doi-asserted-by":"publisher","first-page":"56","DOI":"10.1016\/j.freeradbiomed.2020.01.179","article-title":"Air Pollution and Its Effects on\nthe Immune System","volume":"151","author":"Glencross","year":"2020","journal-title":"Free Radical Biol. 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