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The transient current of the SMO chemiresistor is correlated with the aerobic oxidation of organic vapors on its surface. The changes in transient current of the ZnFe<jats:sub>2<\/jats:sub>O<jats:sub>4<\/jats:sub> chemiresistor are measured at different temperatures (260\u2013320\u2009\u00b0C) for detecting equal concentrations (200\u2005ppm) of the two structural isomers of propanol. The transient current of ZnFe<jats:sub>2<\/jats:sub>O<jats:sub>4<\/jats:sub> reflects a faster oxidation of 2\u2010propanol than 1\u2010propanol on the surface. First\u2010principles calculations and kinetic studies on the interaction of 1\u2010 and 2\u2010propanol over ZnFe<jats:sub>2<\/jats:sub>O<jats:sub>4<\/jats:sub> provide further insight in support of the experimental evidence. The calculations predict more spontaneous adsorption of 2\u2010propanol on the (111) surface of ZnFe<jats:sub>2<\/jats:sub>O<jats:sub>4<\/jats:sub> than 1\u2010propanol. Kinetic parameters for the oxidation of isomeric vapors are estimated by modelling the transient current of ZnFe<jats:sub>2<\/jats:sub>O<jats:sub>4<\/jats:sub> using the Langmuir\u2010Hinshelwood reaction mechanism. The faster oxidation of 2\u2010propanol and comparatively lower activation energy for the respective process over ZnFe<jats:sub>2<\/jats:sub>O<jats:sub>4<\/jats:sub> is justified in accordance to the chemical structures of vapors. The findings have strong implications in exploring a new technique for discriminating isomeric VOCs, which is significant for environmental monitoring and medical applications.<\/jats:p>","DOI":"10.1002\/cplu.201900036","type":"journal-article","created":{"date-parts":[[2019,4,1]],"date-time":"2019-04-01T10:22:43Z","timestamp":1554114163000},"page":"387-391","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Discrimination of 1\u2010 and 2\u2010Propanol by Using the Transient Current Change of a Semiconducting ZnFe<sub>2<\/sub>O<sub>4<\/sub> Chemiresistor"],"prefix":"10.1002","volume":"84","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5431-4246","authenticated-orcid":false,"given":"Kalisadhan","family":"Mukherjee","sequence":"first","affiliation":[{"name":"Department of Electrical and Computer Engineering George Washington University  800 22nd Street, NW Washington DC 20052 USA"},{"name":"Centre for Advanced Materials Processing CSIR-Central Mechanical Engineering Research Institute  Durgapur- 713209 India"},{"name":"Department of Science School of Technology Pandit Deendayal Petroleum University Raisan, Gandhinagar  Gujarat 382077 India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Chinedu E.","family":"Ekuma","sequence":"additional","affiliation":[{"name":"U.S. Army Research Laboratory Sensors and Electron Devices Directorate  2800 Powder Mill Road Adelphi MD 20783 USA"},{"name":"Department of Physics Lehigh University  16 Memorial Dr East PA 18015 USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yangyang","family":"Zhao","sequence":"additional","affiliation":[{"name":"Department of Electrical and Computer Engineering George Washington University  800 22nd Street, NW Washington DC 20052 USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Abhishek","family":"Maikap","sequence":"additional","affiliation":[{"name":"Centre for Advanced Materials Processing CSIR-Central Mechanical Engineering Research Institute  Durgapur- 713209 India"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sina","family":"Najmaei","sequence":"additional","affiliation":[{"name":"U.S. Army Research Laboratory Sensors and Electron Devices Directorate  2800 Powder Mill Road Adelphi MD 20783 USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mona E.","family":"Zaghloul","sequence":"additional","affiliation":[{"name":"Department of Electrical and Computer Engineering George Washington University  800 22nd Street, NW Washington DC 20052 USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2019,4,12]]},"reference":[{"key":"e_1_2_2_1_1","doi-asserted-by":"publisher","DOI":"10.1021\/cr0200116"},{"key":"e_1_2_2_2_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.chemrev.7b00236"},{"key":"e_1_2_2_3_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.201508223"},{"key":"e_1_2_2_3_2","doi-asserted-by":"publisher","DOI":"10.1002\/ange.201508223"},{"key":"e_1_2_2_4_1","doi-asserted-by":"publisher","DOI":"10.1039\/c3gc40307f"},{"key":"e_1_2_2_5_1","doi-asserted-by":"publisher","DOI":"10.1039\/C6GC01290F"},{"key":"e_1_2_2_6_1","doi-asserted-by":"publisher","DOI":"10.1021\/cs501186n"},{"key":"e_1_2_2_7_1","doi-asserted-by":"publisher","DOI":"10.1002\/anie.200903801"},{"key":"e_1_2_2_8_1","doi-asserted-by":"publisher","DOI":"10.1039\/c2cc34706g"},{"key":"e_1_2_2_9_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.nanolett.6b01713"},{"key":"e_1_2_2_10_1","doi-asserted-by":"publisher","DOI":"10.1039\/c3tc30408f"},{"key":"e_1_2_2_11_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.snb.2006.09.047"},{"key":"e_1_2_2_12_1","doi-asserted-by":"publisher","DOI":"10.1002\/chem.200700927"},{"key":"e_1_2_2_13_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.snb.2013.10.107"},{"key":"e_1_2_2_14_1","doi-asserted-by":"publisher","DOI":"10.1021\/jp202123a"},{"key":"e_1_2_2_15_1","doi-asserted-by":"publisher","DOI":"10.1021\/acsnano.5b04343"},{"key":"e_1_2_2_16_1","doi-asserted-by":"publisher","DOI":"10.1039\/C8TA12168K"},{"key":"e_1_2_2_17_1","doi-asserted-by":"publisher","DOI":"10.1021\/acsami.5b03537"},{"key":"e_1_2_2_18_1","doi-asserted-by":"publisher","DOI":"10.1021\/ac00192a022"},{"key":"e_1_2_2_19_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.analchem.5b00759"},{"key":"e_1_2_2_20_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.analchem.5b02202"},{"key":"e_1_2_2_21_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.jpcc.6b10041"},{"key":"e_1_2_2_22_1","doi-asserted-by":"publisher","DOI":"10.1088\/0022-3727\/45\/50\/505306"},{"key":"e_1_2_2_23_1","doi-asserted-by":"publisher","DOI":"10.1021\/cr020526x"},{"key":"e_1_2_2_24_1","doi-asserted-by":"crossref","unstructured":"W. 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