hydrogen gas sensor employing vertically aligned TiO₂ nanotube arrays prepared by template-assisted method
Vertically aligned TiO₂ nanotube arrays for H₂ gas sensor were fabricated by using atomic layer deposition combined with anodic aluminum oxide template. Morphology and crystalline structure of the TiO₂ nanotubes were characterized, and gas sensing properties at low temperatures (
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| Veröffentlicht in: | Sensors and actuators. B, Chemical Chemical, 2011-12, Vol.160 (1), p.1494-1498 |
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| container_title | Sensors and actuators. B, Chemical |
| container_volume | 160 |
| creator | Lee, Jiwon Kim, Dai Hong Hong, Seong-Hyeon Jho, Jae Young |
| description | Vertically aligned TiO₂ nanotube arrays for H₂ gas sensor were fabricated by using atomic layer deposition combined with anodic aluminum oxide template. Morphology and crystalline structure of the TiO₂ nanotubes were characterized, and gas sensing properties at low temperatures ( |
| doi_str_mv | 10.1016/j.snb.2011.08.001 |
| format | Article |
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Morphology and crystalline structure of the TiO₂ nanotubes were characterized, and gas sensing properties at low temperatures (<200°C) were investigated. Uniform TiO₂ nanotubes with anatase phase were synthesized to be vertically aligned on the substrate and electrically interconnected with each other. The TiO₂ nanotube sensors were operated in air environment, and the highest magnitude of the gas response (Rₐᵢᵣ/Rgₐₛ) was determined to be ∼100 toward 1000ppm H₂/air at 100°C. The sensor showed a very short response time (<1s) and a high selectivity for H₂ gas against several reducing gases including NH₃, CO, and C₂H₅OH.</description><identifier>ISSN: 0925-4005</identifier><identifier>EISSN: 1873-3077</identifier><identifier>DOI: 10.1016/j.snb.2011.08.001</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>air ; Alignment ; Aluminum oxide ; crystal structure ; Gas sensors ; hydrogen ; Nanocomposites ; Nanomaterials ; Nanostructure ; nanotubes ; Sensors ; temperature ; Titanium dioxide</subject><ispartof>Sensors and actuators. 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B, Chemical</title><description>Vertically aligned TiO₂ nanotube arrays for H₂ gas sensor were fabricated by using atomic layer deposition combined with anodic aluminum oxide template. Morphology and crystalline structure of the TiO₂ nanotubes were characterized, and gas sensing properties at low temperatures (<200°C) were investigated. Uniform TiO₂ nanotubes with anatase phase were synthesized to be vertically aligned on the substrate and electrically interconnected with each other. The TiO₂ nanotube sensors were operated in air environment, and the highest magnitude of the gas response (Rₐᵢᵣ/Rgₐₛ) was determined to be ∼100 toward 1000ppm H₂/air at 100°C. The sensor showed a very short response time (<1s) and a high selectivity for H₂ gas against several reducing gases including NH₃, CO, and C₂H₅OH.</description><subject>air</subject><subject>Alignment</subject><subject>Aluminum oxide</subject><subject>crystal structure</subject><subject>Gas sensors</subject><subject>hydrogen</subject><subject>Nanocomposites</subject><subject>Nanomaterials</subject><subject>Nanostructure</subject><subject>nanotubes</subject><subject>Sensors</subject><subject>temperature</subject><subject>Titanium dioxide</subject><issn>0925-4005</issn><issn>1873-3077</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2011</creationdate><recordtype>article</recordtype><recordid>eNotkE1r3DAQhkVpoNskP6Cn6NaT3RnJH_KxhCQtBHJIchYjW3a8eC1X4y34mp_aXxItWxh4Yd6PwyPEN4QcAasf-5xnlytAzMHkAPhJ7NDUOtNQ15_FDhpVZgVA-UV8Zd4DQKEr2InpbetiGPwsB2LJfuYQpT8sU9jGeZB_fVzHlqZpkzSNw-w7-TI-_Xt_lzPNYT06LylG2lgu0S8Uk-82uZ4GaPUZMY-8pufBr2-huxIXPU3sr__rpXi9v3u5_ZU9Pj38vv35mLUacM08qkq3SHU6r1TRdlABgqlMX_ekTdfVDqiAjsD1jSkNOIfKlZ2B3jjl9aX4ft5dYvhz9Lzaw8itnyaafTiybSrdIIJqUhLPyTYG5uh7u8TxQHGzCPYE1u5tAmtPYC0Ym8Cmzs2501OwNMSR7etzCpTJRFOg0h8mZ3j4</recordid><startdate>20111215</startdate><enddate>20111215</enddate><creator>Lee, Jiwon</creator><creator>Kim, Dai Hong</creator><creator>Hong, Seong-Hyeon</creator><creator>Jho, Jae Young</creator><general>Elsevier B.V</general><scope>FBQ</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QF</scope><scope>7QQ</scope><scope>7TB</scope><scope>7U5</scope><scope>8FD</scope><scope>FR3</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20111215</creationdate><title>hydrogen gas sensor employing vertically aligned TiO₂ nanotube arrays prepared by template-assisted method</title><author>Lee, Jiwon ; Kim, Dai Hong ; Hong, Seong-Hyeon ; Jho, Jae Young</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c301t-e1263c1a71a7e224cd06010868f7fa38dd7b0a40da0bf98580bb12b5d80f8b2e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2011</creationdate><topic>air</topic><topic>Alignment</topic><topic>Aluminum oxide</topic><topic>crystal structure</topic><topic>Gas sensors</topic><topic>hydrogen</topic><topic>Nanocomposites</topic><topic>Nanomaterials</topic><topic>Nanostructure</topic><topic>nanotubes</topic><topic>Sensors</topic><topic>temperature</topic><topic>Titanium dioxide</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Lee, Jiwon</creatorcontrib><creatorcontrib>Kim, Dai Hong</creatorcontrib><creatorcontrib>Hong, Seong-Hyeon</creatorcontrib><creatorcontrib>Jho, Jae Young</creatorcontrib><collection>AGRIS</collection><collection>CrossRef</collection><collection>Aluminium Industry Abstracts</collection><collection>Ceramic Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Sensors and actuators. B, Chemical</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Lee, Jiwon</au><au>Kim, Dai Hong</au><au>Hong, Seong-Hyeon</au><au>Jho, Jae Young</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>hydrogen gas sensor employing vertically aligned TiO₂ nanotube arrays prepared by template-assisted method</atitle><jtitle>Sensors and actuators. B, Chemical</jtitle><date>2011-12-15</date><risdate>2011</risdate><volume>160</volume><issue>1</issue><spage>1494</spage><epage>1498</epage><pages>1494-1498</pages><issn>0925-4005</issn><eissn>1873-3077</eissn><abstract>Vertically aligned TiO₂ nanotube arrays for H₂ gas sensor were fabricated by using atomic layer deposition combined with anodic aluminum oxide template. Morphology and crystalline structure of the TiO₂ nanotubes were characterized, and gas sensing properties at low temperatures (<200°C) were investigated. Uniform TiO₂ nanotubes with anatase phase were synthesized to be vertically aligned on the substrate and electrically interconnected with each other. The TiO₂ nanotube sensors were operated in air environment, and the highest magnitude of the gas response (Rₐᵢᵣ/Rgₐₛ) was determined to be ∼100 toward 1000ppm H₂/air at 100°C. The sensor showed a very short response time (<1s) and a high selectivity for H₂ gas against several reducing gases including NH₃, CO, and C₂H₅OH.</abstract><pub>Elsevier B.V</pub><doi>10.1016/j.snb.2011.08.001</doi><tpages>5</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0925-4005 |
| ispartof | Sensors and actuators. B, Chemical, 2011-12, Vol.160 (1), p.1494-1498 |
| issn | 0925-4005 1873-3077 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_963911029 |
| source | Elsevier ScienceDirect Journals |
| subjects | air Alignment Aluminum oxide crystal structure Gas sensors hydrogen Nanocomposites Nanomaterials Nanostructure nanotubes Sensors temperature Titanium dioxide |
| title | hydrogen gas sensor employing vertically aligned TiO₂ nanotube arrays prepared by template-assisted method |
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