{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,26]],"date-time":"2026-03-26T20:19:22Z","timestamp":1774556362736,"version":"3.50.1"},"reference-count":52,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2011,11,7]],"date-time":"2011-11-07T00:00:00Z","timestamp":1320624000000},"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>A combinatorial hydrothermal reaction has been used to prepare pure and additive (Sb, Cu, Nb, Pd, and Ni)-loaded In2O3 hollow spheres for gas sensor applications. The operation of Pd- and Cu-loaded In2O3 sensors at 371 \u00b0C leads to selective H2S detection. Selective detection of CO and NH3 was achieved by the Ni-In2O3 sensor at sensing temperatures of 371 and 440 \u00b0C, respectively. The gas responses of six different sensors to NH3, H2S, H2, CO and CH4 produced unique gas sensing patterns that can be used for the artificial recognition of these gases.<\/jats:p>","DOI":"10.3390\/s111110603","type":"journal-article","created":{"date-parts":[[2011,11,7]],"date-time":"2011-11-07T11:36:28Z","timestamp":1320665788000},"page":"10603-10614","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":63,"title":["Design of Selective Gas Sensors Using Additive-Loaded In2O3 Hollow Spheres Prepared by Combinatorial Hydrothermal Reactions"],"prefix":"10.3390","volume":"11","author":[{"given":"Sun-Jung","family":"Kim","sequence":"first","affiliation":[{"name":"Department of Materials Science and Engineering, Korea University, Seoul 136 713, Korea"}]},{"given":"In-Sung","family":"Hwang","sequence":"additional","affiliation":[{"name":"Department of Materials Science and Engineering, Korea University, Seoul 136 713, Korea"}]},{"given":"Yun Chan","family":"Kang","sequence":"additional","affiliation":[{"name":"Department of Chemical Engineering, Konkuk University, Seoul 143-701, Korea"}]},{"given":"Jong-Heun","family":"Lee","sequence":"additional","affiliation":[{"name":"Department of Materials Science and Engineering, Korea University, Seoul 136 713, Korea"}]}],"member":"1968","published-online":{"date-parts":[[2011,11,7]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"2","DOI":"10.1016\/j.snb.2004.12.075","article-title":"Toward innovations of gas sensor technology","volume":"108","author":"Yamazoe","year":"2005","journal-title":"Sens. Actuat. B"},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"18","DOI":"10.1557\/S0883769400052465","article-title":"Basic aspects and challenges of semiconductor gas sensors","volume":"24","author":"Shimizu","year":"1999","journal-title":"MRS Bull"},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"147","DOI":"10.1016\/0925-4005(91)80207-Z","article-title":"Grain size effects on gas sensitivity of porous SnO2-based elements","volume":"3","author":"Xu","year":"1991","journal-title":"Sens. Actuat. B"},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"338","DOI":"10.1016\/S0925-4005(99)00094-5","article-title":"Preparation and characterization of SnO2 and MoOx-SnO2 nanosized powders for thick film gas sensors","volume":"58","author":"Chiorino","year":"1999","journal-title":"Sens. Actuat. B"},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"610","DOI":"10.1016\/j.snb.2005.10.046","article-title":"Selective detection of methane and butane by temperature modulation in iron doped tin oxide sensors","volume":"115","author":"Chakraborty","year":"2006","journal-title":"Sen. Actuat. B"},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"191","DOI":"10.1016\/j.snb.2010.07.013","article-title":"Design of selective gas sensors using electrospun Pd-doped SnO2 hollow nanofibers","volume":"150","author":"Choi","year":"2010","journal-title":"Sens. Actuat. B"},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"5148","DOI":"10.1039\/c0cc05256f","article-title":"Selective detection of NO2 and C2H5OH using a Co3O4-decorated ZnO nanowire network sensor","volume":"47","author":"Na","year":"2011","journal-title":"Chem. Commun"},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"64","DOI":"10.1016\/S0040-6090(03)00510-8","article-title":"Mesoporous catalytic filters for semiconducting gas sensors","volume":"436","author":"Cabot","year":"2003","journal-title":"Thin Solid Films"},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"159","DOI":"10.1016\/S0925-4005(03)00258-2","article-title":"Thick film organic vapour sensors based on binary mixtures","volume":"92","author":"Ewen","year":"2003","journal-title":"Sens. Actuat. B"},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"1059","DOI":"10.1016\/j.snb.2005.07.070","article-title":"Temperature modulation and artificial neural network evaluation for improving the CO selectivity of SnO2 gas sensor","volume":"114","author":"Huang","year":"2006","journal-title":"Sens. Actuat. B"},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"2494","DOI":"10.1002\/(SICI)1521-3773(19990903)38:17<2494::AID-ANIE2494>3.0.CO;2-#","article-title":"Combinatorial materials science and catalysis","volume":"38","author":"Jandeleit","year":"1999","journal-title":"Angew. Chem. Int. Ed"},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"429","DOI":"10.1038\/nmat1157","article-title":"Combinatorial solid state chemistry of inorganic materials","volume":"3","author":"Koinuma","year":"2004","journal-title":"Nature Mater"},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"153","DOI":"10.1016\/S1359-0286(98)80081-8","article-title":"Combinatorial approaches to materials science","volume":"3","author":"Schultz","year":"1998","journal-title":"Curr. Opin. Solid State Mater. Sci"},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"83","DOI":"10.1038\/nmat1064","article-title":"Combinatorial materials science: Reaching beyond discovery","volume":"3","author":"Amis","year":"2004","journal-title":"Nature Mater"},{"key":"ref_15","doi-asserted-by":"crossref","first-page":"770","DOI":"10.1021\/cr068127f","article-title":"Combinatorial and high-throughput development of sensing materials: The first 10 years","volume":"108","author":"Potyrailo","year":"2008","journal-title":"Chem. Rev"},{"key":"ref_16","doi-asserted-by":"crossref","unstructured":"Potyrailo, R.A., and Mirsky, V.M. (2009). Combinatorial Methods for Chemical and Biological Sensors (Integrated Analytical Systems), Springer. Chapter 11.","DOI":"10.1007\/978-0-387-73713-3"},{"key":"ref_17","doi-asserted-by":"crossref","unstructured":"Potyrailo, R.A., and Mirsky, V.M. (2009). Combinatorial Methods for Chemical and Biological Sensors (Integrated Analytical Systems), Springer. Chapter 12.","DOI":"10.1007\/978-0-387-73713-3"},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"298","DOI":"10.3390\/s6040298","article-title":"Workflow for high throughput screening of gas sensing materials","volume":"6","author":"Koplin","year":"2006","journal-title":"Sensors"},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"181","DOI":"10.1016\/j.snb.2006.11.022","article-title":"High throughput screening of the propylene and ethanol sensing properties of rare-earth orthoferrites and orthochromites","volume":"126","author":"Siemons","year":"2007","journal-title":"Sens. Actuat. B"},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"669","DOI":"10.1016\/j.apsusc.2007.06.073","article-title":"Advances in high throughput screening of gas sensing materials","volume":"254","author":"Siemons","year":"2007","journal-title":"Appl. Surf. Sci"},{"key":"ref_21","doi-asserted-by":"crossref","first-page":"318","DOI":"10.1016\/j.snb.2006.08.028","article-title":"The selective detection of C2H5OH using SnO2-ZnO thin film gas sensors prepared by combinatorial solution deposition","volume":"123","author":"Kim","year":"2007","journal-title":"Sens. Actuat. B"},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"827","DOI":"10.1016\/j.ceramint.2007.09.031","article-title":"Preparation of multi-compositional gas sensing films by combinatorial solution deposition","volume":"34","author":"Kim","year":"2008","journal-title":"Ceram. Int"},{"key":"ref_23","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. Actuat. B"},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"6549","DOI":"10.1039\/c0jm03516e","article-title":"Template-free solvothermal synthesis of hollow hematite spheres and their applications in gas sensors and Li-ion batteries","volume":"21","author":"Kim","year":"2011","journal-title":"J. Mater. Chem"},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"3987","DOI":"10.1002\/adma.200800854","article-title":"Hollow micro-\/nanostructures: Synthesis and applications","volume":"20","author":"Lou","year":"2008","journal-title":"Adv. Mater"},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"740","DOI":"10.1002\/1521-4095(200105)13:10<740::AID-ADMA740>3.0.CO;2-6","article-title":"Hollow titania spheres from layered precursor deposition on sacrificial colloidal core particles","volume":"13","author":"Caruso","year":"2001","journal-title":"Adv. Mater"},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"3808","DOI":"10.1021\/cm052768u","article-title":"A generalized synthesis of metal oxide hollow spheres using a hydrothermal approach","volume":"18","author":"Titirici","year":"2006","journal-title":"Chem. Mater"},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"236","DOI":"10.1016\/j.snb.2009.08.031","article-title":"Glucose-mediated hydrothermal synthesis and gas sensing characteristics of WO3 hollow microspheres","volume":"142","author":"Lee","year":"2009","journal-title":"Sens. Actuat. B"},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"607","DOI":"10.1002\/ange.200352386","article-title":"Colloidal carbon spheres and their core\/shell structures with noble-metal nanoparticles","volume":"116","author":"Sun","year":"2004","journal-title":"Angew. Chem. Int. Ed"},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"512","DOI":"10.1016\/j.snb.2010.12.055","article-title":"Enhanced C2H5OH sensing characteristics of nano-porous In2O3 hollow spheres prepared by sucrose-mediated hydrothermal reaction","volume":"155","author":"Kim","year":"2011","journal-title":"Sens. Actuat. B"},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"134","DOI":"10.1016\/0022-4596(70)90041-1","article-title":"Synthesis and structure of a new high-pressure form of Rh2O3","volume":"2","author":"Shannon","year":"1970","journal-title":"J. Solid State Chem"},{"key":"ref_32","doi-asserted-by":"crossref","first-page":"475","DOI":"10.1016\/S1387-7003(02)00454-9","article-title":"Preparation of corundum structure Sn-doped In2O3 nanoparticles via controlled co-precipitating and postannealing route","volume":"5","author":"Yu","year":"2002","journal-title":"Inorg. Chem. Commun"},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"1719","DOI":"10.1016\/j.jpcs.2004.05.002","article-title":"\u03b1-Fe2O3\u2013In2O3 mixed oxide nanoparticles synthesized under hydrothermal supercritical conditions","volume":"65","author":"Sorescu","year":"2004","journal-title":"J. Phys. Chem. Solids"},{"key":"ref_34","doi-asserted-by":"crossref","first-page":"4078","DOI":"10.1021\/ja0318075","article-title":"Ambient pressure synthesis of corundum-type In2O3","volume":"126","author":"Epifani","year":"2004","journal-title":"J. Am. Chem. Soc"},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"610","DOI":"10.1016\/j.snb.2005.10.046","article-title":"Selective detection of methane and butane by temperature modulation in iron doped tin oxide sensors","volume":"115","author":"Chakraborty","year":"2006","journal-title":"Sens. Actuat. B"},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"197","DOI":"10.1016\/0925-4005(92)80216-K","article-title":"CuO\u2013SnO2 element for highly sensitive and selective detection of H2S","volume":"9","author":"Tamaki","year":"1992","journal-title":"Sens. Actuat. B"},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"2172","DOI":"10.1063\/1.1490154","article-title":"H2S sensing mechanism of SnO2 films with ultrathin CuO dotted islands","volume":"92","author":"Chowdhuri","year":"2002","journal-title":"J. Appl. Phys"},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"105","DOI":"10.1016\/j.snb.2009.07.052","article-title":"Enhanced H2S sensing characteristics of SnO2 nanowires functionalized with CuO","volume":"142","author":"Hwang","year":"2009","journal-title":"Sens. Actuat. B"},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"215501","DOI":"10.1088\/0957-4484\/22\/21\/215501","article-title":"High gas sensing performance of one-step-synthesized Pd-ZnO nanoflowers due to surface reaction and modifications","volume":"22","author":"Xing","year":"2011","journal-title":"Nanotechnology"},{"key":"ref_40","doi-asserted-by":"crossref","first-page":"395","DOI":"10.1016\/j.snb.2011.04.064","article-title":"Enhanced ammonia sensing performance of Pd-sensitized flowerlike ZnO nanostructure","volume":"156","author":"Zeng","year":"2011","journal-title":"Sens. Actuat. B"},{"key":"ref_41","doi-asserted-by":"crossref","first-page":"365","DOI":"10.1016\/j.snb.2010.08.012","article-title":"LPG sensing properties of Pd-sensitized vertically aligned ZnO nanorods","volume":"141","author":"Gurav","year":"2011","journal-title":"Sens. Actuat. B"},{"key":"ref_42","doi-asserted-by":"crossref","first-page":"2284","DOI":"10.1016\/j.matlet.2010.07.038","article-title":"CO gas sensing of Pd-doped ZnO nanofibers synthesized by electrospinning method","volume":"64","author":"Wei","year":"2010","journal-title":"Mater. Lett"},{"key":"ref_43","doi-asserted-by":"crossref","first-page":"4701","DOI":"10.1039\/b822784e","article-title":"Self-assemblies of Pd nanoparticles on the surface of single crystal ZnO nanowires for chemical sensors with enhanced performances","volume":"19","author":"Zhang","year":"2009","journal-title":"J. Mater. Chem"},{"key":"ref_44","doi-asserted-by":"crossref","first-page":"823","DOI":"10.1016\/j.snb.2005.03.104","article-title":"Effect of Ni doping on thick film SnO2 gas sensor","volume":"113","author":"Jain","year":"2006","journal-title":"Sens. Actuat. B"},{"key":"ref_45","doi-asserted-by":"crossref","first-page":"162","DOI":"10.1016\/j.snb.2010.12.001","article-title":"Enhanced sensor response of Ni-doped SnO2 hollow spheres","volume":"152","author":"Liu","year":"2011","journal-title":"Sens. Actuat. B"},{"key":"ref_46","doi-asserted-by":"crossref","first-page":"44","DOI":"10.1016\/S0925-4005(98)00281-0","article-title":"Effect of NiII ions on the properties of In2O3-based ceramic sensors","volume":"53","author":"Ivanovskaya","year":"1998","journal-title":"Sens. Actuat. B"},{"key":"ref_47","doi-asserted-by":"crossref","first-page":"5061","DOI":"10.1039\/c0cc00213e","article-title":"Ultra-fast responding and recovering C2H5OH sensors using SnO2 hollow spheres prepared and activated by Ni templates","volume":"46","author":"Kim","year":"2010","journal-title":"Chem. Commun"},{"key":"ref_48","first-page":"119","article-title":"A combinatorial technique for the search of solid state gas sensor materials","volume":"16","author":"Scheidtmann","year":"2006","journal-title":"Nanotechnology"},{"key":"ref_49","doi-asserted-by":"crossref","first-page":"995","DOI":"10.1109\/JSEN.2005.845193","article-title":"A combinatorial approach for field-effect gas sensor research and development","volume":"5","author":"Klingvall","year":"2005","journal-title":"IEEE Sensors J"},{"key":"ref_50","doi-asserted-by":"crossref","first-page":"134110","DOI":"10.1063\/1.2190272","article-title":"Selective gas nanosensors with multisize CdSe nanocrsystal\/polymer composite films and dynamic pattern recognition","volume":"88","author":"Potyrailo","year":"2006","journal-title":"Appl. Phys. Lett"},{"key":"ref_51","doi-asserted-by":"crossref","first-page":"1255","DOI":"10.1063\/1.1600822","article-title":"Combinatorial libraries of semiconductor gas sensors as inorganic electronic noses","volume":"83","author":"Aronova","year":"2003","journal-title":"Appl. Phys. Lett"},{"key":"ref_52","doi-asserted-by":"crossref","first-page":"110","DOI":"10.1016\/j.snb.2006.01.049","article-title":"Preparation and gas sensing properties of nanocrystalline La-doped CoTiO3","volume":"120","author":"Siemons","year":"2006","journal-title":"Sens. Actuat. 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