{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,26]],"date-time":"2026-06-26T12:10:31Z","timestamp":1782475831372,"version":"3.54.5"},"reference-count":87,"publisher":"MDPI AG","issue":"4","license":[{"start":{"date-parts":[[2021,2,14]],"date-time":"2021-02-14T00:00:00Z","timestamp":1613260800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100002635","name":"Inha University","doi-asserted-by":"publisher","award":["2020"],"award-info":[{"award-number":["2020"]}],"id":[{"id":"10.13039\/501100002635","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Reduced graphene oxide (rGO) is a reduced form of graphene oxide used extensively in gas sensing applications. On the other hand, in its pristine form, graphene has shortages and is generally utilized in combination with other metal oxides to improve gas sensing capabilities. There are different ways of adding rGO to different metal oxides with various morphologies. This study focuses on rGO-loaded metal oxide nanofiber (NF) synthesized using an electrospinning method. Different amounts of rGO were added to the metal oxide precursors, and after electrospinning, the gas response is enhanced through different sensing mechanisms. This review paper discusses rGO-loaded metal oxide NFs gas sensors.<\/jats:p>","DOI":"10.3390\/s21041352","type":"journal-article","created":{"date-parts":[[2021,2,14]],"date-time":"2021-02-14T10:01:05Z","timestamp":1613296865000},"page":"1352","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":106,"title":["Reduced Graphene Oxide (rGO)-Loaded Metal-Oxide Nanofiber Gas Sensors: An Overview"],"prefix":"10.3390","volume":"21","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-3088-3727","authenticated-orcid":false,"given":"Sanjit Manohar","family":"Majhi","sequence":"first","affiliation":[{"name":"Division of Materials Science and Engineering, Hanyang University, Seoul 04763, Korea"},{"name":"The Research Institute of Industrial Science, Hanyang University, Seoul 04763, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2301-634X","authenticated-orcid":false,"given":"Ali","family":"Mirzaei","sequence":"additional","affiliation":[{"name":"Department of Materials Science and Engineering, Shiraz University of Technology, Shiraz 71557-13876, Iran"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hyoun Woo","family":"Kim","sequence":"additional","affiliation":[{"name":"Division of Materials Science and Engineering, Hanyang University, Seoul 04763, Korea"},{"name":"The Research Institute of Industrial Science, Hanyang University, Seoul 04763, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6912-3509","authenticated-orcid":false,"given":"Sang Sub","family":"Kim","sequence":"additional","affiliation":[{"name":"Department of Materials Science and Engineering, Inha University, Incheon 22212, Korea"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2021,2,14]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"323","DOI":"10.1080\/02564602.2015.1080603","article-title":"Analysis and review of tin oxide-based chemoresistive gas sensor","volume":"33","author":"Velmathi","year":"2016","journal-title":"IETE Tech. Rev."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"580","DOI":"10.1016\/j.snb.2011.08.032","article-title":"Semiconducting metal oxides as sensors for environmentally hazardous gases","volume":"160","author":"Wetchakun","year":"2011","journal-title":"Sens. Actuators B Chem."},{"key":"ref_3","doi-asserted-by":"crossref","unstructured":"Feng, S., Farha, F., Li, Q., Wan, Y., Xu, Y., Zhang, T., and Ning, H. (2019). Review on smart gas sensing technology. Sensors, 19.","DOI":"10.3390\/s19173760"},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"105369","DOI":"10.1016\/j.nanoen.2020.105369","article-title":"Recent advances in energy-saving chemiresistive gas sensors: A review","volume":"79","author":"Majhi","year":"2021","journal-title":"Nano Energy"},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"4342","DOI":"10.1039\/C8TC00245B","article-title":"Resistive-based gas sensors for detection of benzene, toluene and xylene (btx) gases: A review","volume":"6","author":"Mirzaei","year":"2018","journal-title":"J. Mater. Chem. C"},{"key":"ref_6","doi-asserted-by":"crossref","unstructured":"Nazemi, H., Joseph, A., Park, J., and Emadi, A. (2019). Advanced micro- and nano-gas sensor technology: A review. Sensors, 19.","DOI":"10.3390\/s19061285"},{"key":"ref_7","doi-asserted-by":"crossref","unstructured":"Wang, J., Shen, H., Xia, Y., and Komarneni, S. (2020). Light-activated room-temperature gas sensors based on metal oxide nanostructures: A review on recent advances. Ceram. Inter., Corrected Proof.","DOI":"10.1016\/j.ceramint.2020.11.187"},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"250","DOI":"10.1016\/j.snb.2014.07.074","article-title":"Nanoscale metal oxide-based heterojunctions for gas sensing: A review","volume":"204","author":"Miller","year":"2014","journal-title":"Sens. Actuators B Chem."},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"499","DOI":"10.1080\/10408436.2016.1244656","article-title":"Noble metal decorated graphene-based gas sensors and their fabrication: A review","volume":"42","author":"Singhal","year":"2017","journal-title":"Crit. Rev. Solid State Mater. Sci."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"128475","DOI":"10.1016\/j.snb.2020.128475","article-title":"Indium-implantation-induced enhancement of gas sensing behaviors of SnO2 nanowires by the formation of homo-core\u2013shell structure","volume":"321","author":"Kim","year":"2020","journal-title":"Sens. Actuators B Chem."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"178","DOI":"10.1016\/j.snb.2012.10.134","article-title":"Nanowire-based gas sensors","volume":"177","author":"Chen","year":"2013","journal-title":"Sens. Actuators B Chem."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"14174","DOI":"10.1016\/j.ijhydene.2020.03.050","article-title":"Carbon-doped zno nanotube-based highly effective hydrogen gas sensor: A first-principles study","volume":"45","author":"Rezaie","year":"2020","journal-title":"Int. J. Hydrogen Energy"},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"266","DOI":"10.1016\/j.apsusc.2019.04.189","article-title":"Highly selective detection of saturated vapors of abused drugs by ZnO nanorod bundles gas sensor","volume":"485","author":"Gao","year":"2019","journal-title":"Appl. Surf. Sci."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"122","DOI":"10.1016\/j.snb.2014.10.119","article-title":"Comparative gas sensor response of SnO2, SnO and Sn3O4 nanobelts to SnO2 and potential interferents","volume":"208","author":"Suman","year":"2015","journal-title":"Sens. Actuators B Chem."},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"221","DOI":"10.1007\/s13391-018-0044-z","article-title":"Recent developments in 2D nanomaterials for chemiresistive-type gas sensors","volume":"14","author":"Choi","year":"2018","journal-title":"Electron. Mater. Lett."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"319","DOI":"10.1016\/j.snb.2009.04.026","article-title":"Gas sensors using hierarchical and hollow oxide nanostructures: Overview","volume":"140","author":"Lee","year":"2009","journal-title":"Sens. Actuators B Chem."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1080\/10408430903245369","article-title":"Porous semiconductors: Advanced material for gas sensor applications","volume":"35","author":"Korotcenkov","year":"2010","journal-title":"Crit. Rev. Solid State Mater. Sci."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"183","DOI":"10.3389\/fmats.2019.00183","article-title":"Synthesis of hollow nanofibers and application on detecting SF6 decomposing products: A mini review","volume":"6","author":"Lu","year":"2019","journal-title":"Front. Mater."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"111834","DOI":"10.1016\/j.sna.2020.111834","article-title":"Voc gas sensor based on hollow cubic assembled nanocrystal Zn2SnO4 for breath analysis","volume":"302","author":"Hanh","year":"2020","journal-title":"Sens. Actuators A Phys."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"210","DOI":"10.1016\/j.snb.2019.04.113","article-title":"Design of supersensitive and selective zno-nanofiber-based sensors for H2 gas sensing by electron-beam irradiation","volume":"293","author":"Kim","year":"2019","journal-title":"Sens. Actuators B Chem."},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"500","DOI":"10.1016\/j.snb.2017.04.029","article-title":"Optimization and gas sensing mechanism of n-SnO2-p-Co3O4 composite nanofibers","volume":"248","author":"Kim","year":"2017","journal-title":"Sens. Actuators B Chem."},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"673","DOI":"10.1016\/j.rser.2016.09.003","article-title":"Electrospinning in solid oxide fuel cells\u2014A review","volume":"67","author":"Aruna","year":"2017","journal-title":"Renew. Sustain. Energy Rev."},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"111722","DOI":"10.1016\/j.sna.2019.111722","article-title":"One-step fabrication of SnO2 porous nanofiber gas sensors for sub-ppm H2S detection","volume":"303","author":"Phuoc","year":"2020","journal-title":"Sens. Actuators A. Phys."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"1230","DOI":"10.1016\/j.snb.2017.11.088","article-title":"A formaldehyde sensor: Significant role of pn heterojunction in gas-sensitive core-shell nanofibers","volume":"258","author":"Gao","year":"2018","journal-title":"Sens. Actuators B Chem."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"1704765","DOI":"10.1002\/adma.201704765","article-title":"Recent progress in coaxial electrospinning: New parameters, various structures, and wide applications","volume":"30","author":"Yoon","year":"2018","journal-title":"Adv. Mater."},{"key":"ref_26","first-page":"e1601","article-title":"Multifluid electrospinning for the generation of complex nanostructures","volume":"12","author":"Yu","year":"2020","journal-title":"Wiley Interdisciplinary Reviews: Nanomed. Nanobiotechnol."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"2892","DOI":"10.1002\/jbm.a.36124","article-title":"Recent advancements in electrospinning design for tissue engineering applications: A review","volume":"105","author":"Kishan","year":"2017","journal-title":"J. Biomed. Mater. Res. Part A"},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"366","DOI":"10.4191\/kcers.2017.54.5.12","article-title":"Electrospun metal oxide composite nanofibers gas sensors: A review","volume":"54","author":"Abideen","year":"2017","journal-title":"J. Korean Ceram. Soc."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"1825","DOI":"10.1016\/j.rser.2017.05.281","article-title":"Recent advances in energy materials by electrospinning","volume":"81","author":"Liu","year":"2018","journal-title":"Renew. Sustain. Energy Rev."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"2000845","DOI":"10.1002\/aenm.202000845","article-title":"Electrospinning-based strategies for battery materials","volume":"11","author":"Li","year":"2020","journal-title":"Adv. Energy Mater."},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"5298","DOI":"10.1021\/acs.chemrev.8b00593","article-title":"Electrospinning and electrospun nanofibers: Methods, materials, and applications","volume":"119","author":"Xue","year":"2019","journal-title":"Chem. Rev."},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"1976","DOI":"10.1021\/acs.accounts.7b00218","article-title":"Electrospun nanofibers: New concepts, materials, and applications","volume":"50","author":"Xue","year":"2017","journal-title":"Acc. Chem. Res."},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"56","DOI":"10.1016\/j.tifs.2017.10.009","article-title":"Electrospinning: A novel nano-encapsulation approach for bioactive compounds","volume":"70","author":"Wen","year":"2017","journal-title":"Trends Food Sci. Technol."},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"641","DOI":"10.1016\/j.apsusc.2017.06.116","article-title":"Electrospinning: A versatile technique for making of 1D growth of nanostructured nanofibers and its applications: An experimental approach","volume":"423","author":"Patil","year":"2017","journal-title":"Appl. Surf. Sci."},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"6640","DOI":"10.1002\/smll.201600382","article-title":"Graphene in photocatalysis: A review","volume":"12","author":"Li","year":"2016","journal-title":"Small"},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"7752","DOI":"10.1002\/anie.200901678","article-title":"Graphene: The new two-dimensional nanomaterial","volume":"48","author":"Rao","year":"2009","journal-title":"Angew. Chem. Int. Ed."},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"652","DOI":"10.1038\/nmat1967","article-title":"Detection of individual gas molecules adsorbed on graphene","volume":"6","author":"Schedin","year":"2007","journal-title":"Nat. Mater."},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"53","DOI":"10.1002\/cvde.200806737","article-title":"Large-scale synthesis of few-layered graphene using CVD","volume":"15","author":"Wang","year":"2009","journal-title":"Chem. Vap. Depos."},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"1679","DOI":"10.1021\/nl080604h","article-title":"Synthesis of water soluble graphene","volume":"8","author":"Si","year":"2008","journal-title":"Nano Lett."},{"key":"ref_40","doi-asserted-by":"crossref","first-page":"7461","DOI":"10.1039\/c2jm16835a","article-title":"Facile synthesis of water-soluble, highly fluorescent graphene quantum dots as a robust biological label for stem cells","volume":"22","author":"Zhang","year":"2012","journal-title":"J. Mater. Chem."},{"key":"ref_41","doi-asserted-by":"crossref","first-page":"31","DOI":"10.1016\/j.nanoms.2019.02.004","article-title":"Synthesis, properties, and applications of graphene oxide\/reduced graphene oxide and their nanocomposites","volume":"1","author":"Smith","year":"2019","journal-title":"Nano Mater. Sci."},{"key":"ref_42","doi-asserted-by":"crossref","first-page":"1170","DOI":"10.1016\/j.snb.2015.07.070","article-title":"Graphene-metal oxide nanohybrids for toxic gas sensor: A review","volume":"221","author":"Chatterjee","year":"2015","journal-title":"Sens. Actuators B Chem."},{"key":"ref_43","doi-asserted-by":"crossref","first-page":"108039","DOI":"10.1016\/j.diamond.2020.108039","article-title":"Chemiresistive gas sensors based on thermally reduced graphene oxide for sensing sulphur dioxide at room temperature","volume":"109","author":"Kumar","year":"2020","journal-title":"Diam. Relat. Mater."},{"key":"ref_44","doi-asserted-by":"crossref","first-page":"43","DOI":"10.1016\/j.aca.2015.02.002","article-title":"Recent progress in applications of graphene oxide for gas sensing: A review","volume":"878","author":"Toda","year":"2015","journal-title":"Anal. Chim. Acta"},{"key":"ref_45","doi-asserted-by":"crossref","unstructured":"Pendolino, F., and Armata, N. (2017). Graphene Oxide in Environmental Remediation Process, Springer.","DOI":"10.1007\/978-3-319-60429-9"},{"key":"ref_46","doi-asserted-by":"crossref","first-page":"9562","DOI":"10.1039\/C7NR02943H","article-title":"Experimental review: Chemical reduction of graphene oxide (GO) to reduced graphene oxide (rGO) by aqueous chemistry","volume":"9","author":"Guex","year":"2017","journal-title":"Nanoscale"},{"key":"ref_47","doi-asserted-by":"crossref","first-page":"419","DOI":"10.1016\/j.snb.2015.11.051","article-title":"Improvement of SnO2 gas sensing performance based on discoid tin oxide modified by reduced graphene oxide","volume":"227","author":"Xiao","year":"2016","journal-title":"Sensors Actuators B Chem."},{"key":"ref_48","doi-asserted-by":"crossref","first-page":"1339","DOI":"10.1021\/ja01539a017","article-title":"Preparation of graphitic oxide","volume":"80","author":"Hummers","year":"1958","journal-title":"J. Am. Chem. Soc."},{"key":"ref_49","first-page":"466","article-title":"Hydration behavior and dynamics of water molecules in graphite oxide","volume":"59","author":"Brodie","year":"1860","journal-title":"Ann. Chim. Phys."},{"key":"ref_50","doi-asserted-by":"crossref","first-page":"200","DOI":"10.1016\/j.compositesb.2018.01.013","article-title":"Graphene-based materials and their composites: A review on production, applications and product limitations","volume":"142","author":"Mohan","year":"2018","journal-title":"Comp. Part B. Eng."},{"key":"ref_51","doi-asserted-by":"crossref","first-page":"12370","DOI":"10.1039\/c1cc15569e","article-title":"One-pot reduction of graphene oxide at subzero temperatures","volume":"47","author":"Cui","year":"2011","journal-title":"Chem. Commun."},{"key":"ref_52","doi-asserted-by":"crossref","first-page":"616","DOI":"10.1016\/j.apsusc.2018.09.128","article-title":"A novel approach to fabricating a ternary rGO\/ZnO\/Pt system for high-performance hydrogen sensor at low operating temperatures","volume":"464","author":"Drmosh","year":"2019","journal-title":"Appl. Surf. Sci."},{"key":"ref_53","doi-asserted-by":"crossref","first-page":"846","DOI":"10.1016\/j.snb.2017.11.032","article-title":"Highly flexible, mechanically stable, and sensitive NO2 gas sensors based on reduced graphene oxide nanofibrous mesh fabric for flexible electronics","volume":"257","author":"Park","year":"2018","journal-title":"Sens. Actuators B Chem."},{"key":"ref_54","doi-asserted-by":"crossref","unstructured":"Zou, B., Gou, Y., Shen, N., Xiao, A., Li, M., Zhu, L., Wan, P., and Sun, X. (2017). Sulfophenyl-Functionalized reduced graphene oxide networks on electrospun 3D scaffold for ultrasensitive NO2 Gas Sensor. Sensors, 17.","DOI":"10.3390\/s17122954"},{"key":"ref_55","doi-asserted-by":"crossref","first-page":"17003","DOI":"10.1021\/am504616c","article-title":"Ultrasensitive and selective nitrogen dioxide sensor based on self-assembled graphene\/polymer composite nanofibers","volume":"6","author":"Yuan","year":"2014","journal-title":"ACS Appl. Mater. Interfaces"},{"key":"ref_56","doi-asserted-by":"crossref","first-page":"242","DOI":"10.1016\/j.sna.2017.10.021","article-title":"Room-temperature gas sensing of ZnO-based gas sensor: A review","volume":"267","author":"Zhu","year":"2017","journal-title":"Sens. Actuators A Phys."},{"key":"ref_57","doi-asserted-by":"crossref","first-page":"97","DOI":"10.1007\/s40820-014-0023-3","article-title":"Zinc oxide nanostructures for SnO2 gas\u2013sensor applications: A review","volume":"7","author":"Kumar","year":"2015","journal-title":"Nano-Micro Lett."},{"key":"ref_58","doi-asserted-by":"crossref","first-page":"15418","DOI":"10.1039\/C5CC05370F","article-title":"An ultra-sensitive hydrogen gas sensor using reduced graphene oxide-loaded ZnO nanofibers","volume":"51","author":"Abideen","year":"2015","journal-title":"Chem. Commun."},{"key":"ref_59","doi-asserted-by":"crossref","first-page":"1499","DOI":"10.1016\/j.snb.2015.07.120","article-title":"Excellent gas detection of ZnO nanofibers by loading with reduced graphene oxide nanosheets","volume":"221","author":"Abideen","year":"2015","journal-title":"Sens. Actuators B Chem."},{"key":"ref_60","doi-asserted-by":"crossref","first-page":"1884","DOI":"10.1016\/j.snb.2017.08.210","article-title":"Sensing behavior to ppm-level gases and synergistic sensing mechanism in metal-functionalized rgo-loaded ZnO nanofibers","volume":"255","author":"Abideen","year":"2018","journal-title":"Sens. Actuators B Chem."},{"key":"ref_61","doi-asserted-by":"crossref","first-page":"112","DOI":"10.1016\/j.pmatsci.2014.06.003","article-title":"SnO2: A comprehensive review on structures and gas sensors","volume":"66","author":"Das","year":"2014","journal-title":"Prog. Mater. Sci."},{"key":"ref_62","doi-asserted-by":"crossref","first-page":"63","DOI":"10.1023\/A:1023436725457","article-title":"Oxide semiconductor gas sensors","volume":"7","author":"Yamazoe","year":"2003","journal-title":"J. Catal. Surv. Asia"},{"key":"ref_63","doi-asserted-by":"crossref","first-page":"3101","DOI":"10.1021\/am5071656","article-title":"Extraordinary improvement of gas-sensing performances in SnO2 nanofibers due to creation of local p\u2013n heterojunctions by loading reduced graphene oxide nanosheets","volume":"7","author":"Lee","year":"2015","journal-title":"ACS Appl. Mater. Interfaces"},{"key":"ref_64","doi-asserted-by":"crossref","first-page":"533","DOI":"10.1016\/j.snb.2017.04.164","article-title":"Enhanced formaldehyde sensing properties of hollow SnO2 nanofibers by graphene oxide","volume":"250","author":"Wang","year":"2017","journal-title":"Sens. Actuators B Chem."},{"key":"ref_65","doi-asserted-by":"crossref","first-page":"443","DOI":"10.1016\/j.snb.2019.03.133","article-title":"UV light irradiation enhanced gas sensor selectivity of NO2 and SO2 using rgo functionalized with hollow SnO2 nanofibers","volume":"290","author":"Li","year":"2019","journal-title":"Sens. Actuators B Chem."},{"key":"ref_66","doi-asserted-by":"crossref","first-page":"2588","DOI":"10.1021\/am405088q","article-title":"Selective detection of acetone and hydrogen sulfide for the diagnosis of diabetes and halitosis using SnO2 nanofibers functionalized with reduced graphene oxide nanosheets","volume":"6","author":"Choi","year":"2014","journal-title":"ACS Appl. Mater. Interfaces"},{"key":"ref_67","doi-asserted-by":"crossref","first-page":"3531","DOI":"10.1007\/s11664-017-5301-7","article-title":"Synthesis and selective sensing properties of rgo\/metal-coloaded SnO2 nanofibers","volume":"46","author":"Kim","year":"2017","journal-title":"J. Electron. Mater."},{"key":"ref_68","doi-asserted-by":"crossref","first-page":"3109","DOI":"10.1007\/s10854-015-4200-z","article-title":"A-Fe2O3 based nanomaterials as gas sensors","volume":"27","author":"Mirzaei","year":"2016","journal-title":"J. Mater. Sci. Mater. Electron."},{"key":"ref_69","doi-asserted-by":"crossref","first-page":"233","DOI":"10.1016\/j.snb.2016.12.137","article-title":"Reduced graphene oxide\/\u03b1-Fe2O3 composite nanofibers for application in gas sensors","volume":"244","author":"Guo","year":"2017","journal-title":"Sens. Actuators B Chem."},{"key":"ref_70","doi-asserted-by":"crossref","first-page":"154169","DOI":"10.1016\/j.jallcom.2020.154169","article-title":"Enhanced H2S gas-sensing performance of \u03b1-Fe2O3 nanofibers by optimizing process conditions and loading with reduced graphene oxide","volume":"826","author":"Hung","year":"2020","journal-title":"J. Alloys Comp."},{"key":"ref_71","doi-asserted-by":"crossref","first-page":"126472","DOI":"10.1016\/j.cej.2020.126472","article-title":"Advances in In2O3-based materials for the development of hydrogen sulfide sensors","volume":"404","author":"Kumar","year":"2021","journal-title":"Chem. Eng. J."},{"key":"ref_72","doi-asserted-by":"crossref","first-page":"657","DOI":"10.1016\/j.snb.2006.03.027","article-title":"The influence of additives on gas sensing and structural properties of In2O3-based ceramics","volume":"120","author":"Korotcenkov","year":"2007","journal-title":"Sens. Actuators B Chem."},{"key":"ref_73","doi-asserted-by":"crossref","first-page":"90","DOI":"10.1016\/j.snb.2014.10.035","article-title":"Electrospun nanofibers of p-type nio\/n-type Zno heterojunction with different nio content and its influence on trimethylamine sensing properties","volume":"207","author":"Li","year":"2015","journal-title":"Sens. Actuators B Chem."},{"key":"ref_74","doi-asserted-by":"crossref","first-page":"713","DOI":"10.1016\/j.talanta.2019.06.034","article-title":"Ammonia gas sensors: A comprehensive review","volume":"204","author":"Kwak","year":"2019","journal-title":"Talanta"},{"key":"ref_75","doi-asserted-by":"crossref","first-page":"133","DOI":"10.1016\/j.apsusc.2018.12.101","article-title":"Enhanced and selective ammonia detection using In2O3\/reduced graphene oxide hybrid nanofibers","volume":"473","author":"Andre","year":"2019","journal-title":"App. Surf. Sci."},{"key":"ref_76","doi-asserted-by":"crossref","first-page":"908","DOI":"10.1016\/j.jallcom.2018.01.209","article-title":"Improved NO2 sensing properties at low temperature using reduced graphene oxide nanosheet\u2013In2O3 heterojunction nanofibers","volume":"741","author":"Yan","year":"2018","journal-title":"J. Alloys Comp."},{"key":"ref_77","doi-asserted-by":"crossref","first-page":"133","DOI":"10.1016\/j.snb.2014.09.025","article-title":"Nanostructured Co3O4 as a co gas sensor: Temperature-dependent behavior","volume":"206","author":"Vetter","year":"2015","journal-title":"Sens. Actuators B Chem."},{"key":"ref_78","doi-asserted-by":"crossref","first-page":"172","DOI":"10.1016\/j.snb.2013.05.093","article-title":"Rhombus-shaped Co3O4 nanorod arrays for high-performance gas sensor","volume":"186","author":"Wen","year":"2013","journal-title":"Sens. Actuators B Chem."},{"key":"ref_79","doi-asserted-by":"crossref","first-page":"851","DOI":"10.1002\/adfm.200400429","article-title":"Co3O4 nanomaterials in lithium-ion batteries and gas sensors","volume":"15","author":"Li","year":"2005","journal-title":"Adv. Funct. Mater."},{"key":"ref_80","doi-asserted-by":"crossref","first-page":"864","DOI":"10.1016\/j.snb.2015.09.021","article-title":"Reduced graphene oxide (rGO) encapsulated Co3O4 composite nanofibers for highly selective ammonia sensors","volume":"222","author":"Feng","year":"2016","journal-title":"Sens. Actuators B Chem."},{"key":"ref_81","doi-asserted-by":"crossref","first-page":"3985","DOI":"10.1016\/j.ijhydene.2018.12.083","article-title":"Ultra-highly sensitive and selective H2S gas sensor based on cuo with sub-ppb detection limit","volume":"44","author":"Li","year":"2019","journal-title":"Int. J. Hydrog. Energy."},{"key":"ref_82","doi-asserted-by":"crossref","first-page":"314","DOI":"10.1016\/j.jhazmat.2018.06.015","article-title":"Resistance-based H2S gas sensors using metal oxide nanostructures: A review of recent advances","volume":"357","author":"Mirzaei","year":"2018","journal-title":"J. Hazard. Mater."},{"key":"ref_83","doi-asserted-by":"crossref","first-page":"15858","DOI":"10.1016\/j.ceramint.2020.03.133","article-title":"Low-temperature and highly sensitivity h2s gas sensor based on ZnO\/CuO composite derived from bimetal metal-organic frameworks","volume":"46","author":"Wang","year":"2020","journal-title":"Ceram. Int."},{"key":"ref_84","doi-asserted-by":"crossref","first-page":"453","DOI":"10.1016\/j.snb.2018.10.144","article-title":"Enhancement of H2S sensing performance of p-Cuo nanofibers by loading p-reduced graphene oxide nanosheets","volume":"281","author":"Kim","year":"2019","journal-title":"Sens. Actuators B Chem."},{"key":"ref_85","doi-asserted-by":"crossref","first-page":"317","DOI":"10.1007\/BF00307535","article-title":"Systematics of the spinel structure type","volume":"4","author":"Hill","year":"1979","journal-title":"Phys. Chem. Miner."},{"key":"ref_86","doi-asserted-by":"crossref","first-page":"945","DOI":"10.2116\/analsci.33.945","article-title":"Room-temperature H2S gas sensor based on au-doped ZnFe2O4 yolk-shell microspheres","volume":"33","author":"Yan","year":"2017","journal-title":"Anal. Sci."},{"key":"ref_87","doi-asserted-by":"crossref","first-page":"876","DOI":"10.1016\/j.snb.2018.11.157","article-title":"Excellent detection of H2S gas at ppb concentrations using ZnFe2O4 nanofibers loaded with reduced graphene oxide","volume":"282","author":"Hung","year":"2019","journal-title":"Sens. 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