Detection of H2S down to ppb levels at room temperature using sensors based on ZnO nanorods
ZnO sensors were fabricated from ZnO nanorods prepared by a hydrothermal method and their gas-sensing properties were investigated. It was found that the phase composition of the product and the gas-sensing properties were dependent on the preparation conditions (the presence of surfactant and the r...
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| Veröffentlicht in: | Sensors and actuators. B, Chemical Chemical, 2006-01, Vol.113 (1), p.320-323 |
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| container_title | Sensors and actuators. B, Chemical |
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| creator | Wang, Caihong Chu, Xiangfeng Wu, Mingmei |
| description | ZnO sensors were fabricated from ZnO nanorods prepared by a hydrothermal method and their gas-sensing properties were investigated. It was found that the phase composition of the product and the gas-sensing properties were dependent on the preparation conditions (the presence of surfactant and the ratio of VZnAc2(0.50M)/VNaOH(5.0M)). The sensor prepared at a ratio of VZnAc2(0.50M)/VNaOH(5.0M)=1 without any surfactant exhibited the best performance, which was characterized by high response and good selectivity to low concentrations of H2S at room temperature. The sensor also had a high response, high selectivity and short response time to low concentrations of C2H5OH at 350°C. These characteristics make the sensor to be a promising candidate for practical materials detecting low concentrations of H2S and C2H5OH. Especially, the response to 0.05ppm H2S attained 1.7 at room temperature. |
| doi_str_mv | 10.1016/j.snb.2005.03.011 |
| format | Article |
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It was found that the phase composition of the product and the gas-sensing properties were dependent on the preparation conditions (the presence of surfactant and the ratio of VZnAc2(0.50M)/VNaOH(5.0M)). The sensor prepared at a ratio of VZnAc2(0.50M)/VNaOH(5.0M)=1 without any surfactant exhibited the best performance, which was characterized by high response and good selectivity to low concentrations of H2S at room temperature. The sensor also had a high response, high selectivity and short response time to low concentrations of C2H5OH at 350°C. These characteristics make the sensor to be a promising candidate for practical materials detecting low concentrations of H2S and C2H5OH. 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Especially, the response to 0.05ppm H2S attained 1.7 at room temperature.</description><subject>Actuators</subject><subject>Low concentrations</subject><subject>Nanorods</subject><subject>Phase composition</subject><subject>Selectivity</subject><subject>Sensors</subject><subject>Surfactants</subject><subject>Zinc oxide</subject><issn>0925-4005</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><recordid>eNp9kDtPwzAURj2ARHn8ADZPiCXh-pE0GVF5FKlSB2CBwXJiB6VK7ODrgPj3uCoz0yd9OjrDIeSSQc6AlTe7HF2Tc4AiB5EDY0dkATUvMpmuE3KKuAMAKUpYkPc7G20be--o7-iaP1Pjvx2Nnk5TQwf7ZQekOtLg_UijHScbdJyDpTP27oOidegD0kajNTRJ3tyWOu188AbPyXGnB7QXf3tGXh_uX1brbLN9fFrdbrJWchEzwcF2DRfLuiyNMbrjtRZF03amMNw0UkBdLVspQdu6NVAawWpploVsZMmrphBn5OrgnYL_nC1GNfbY2mHQzvoZFa_KSiR9Aq__BRlUnNWs4jKh7IC2wSMG26kp9KMOPwlS-8pqp1Jlta-sQKhUWfwCYGRy9w</recordid><startdate>20060117</startdate><enddate>20060117</enddate><creator>Wang, Caihong</creator><creator>Chu, Xiangfeng</creator><creator>Wu, Mingmei</creator><scope>AAYXX</scope><scope>CITATION</scope><scope>7TB</scope><scope>7U5</scope><scope>8FD</scope><scope>FR3</scope><scope>L7M</scope><scope>7SP</scope><scope>7SR</scope><scope>F28</scope><scope>JG9</scope></search><sort><creationdate>20060117</creationdate><title>Detection of H2S down to ppb levels at room temperature using sensors based on ZnO nanorods</title><author>Wang, Caihong ; Chu, Xiangfeng ; Wu, Mingmei</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c423t-320efb237966dddaf29a35bcfd5d2db430987c440ae9cd06d3194d754b4628b53</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><topic>Actuators</topic><topic>Low concentrations</topic><topic>Nanorods</topic><topic>Phase composition</topic><topic>Selectivity</topic><topic>Sensors</topic><topic>Surfactants</topic><topic>Zinc oxide</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Wang, Caihong</creatorcontrib><creatorcontrib>Chu, Xiangfeng</creatorcontrib><creatorcontrib>Wu, Mingmei</creatorcontrib><collection>CrossRef</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>Advanced Technologies Database with Aerospace</collection><collection>Electronics & Communications Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Materials Research Database</collection><jtitle>Sensors and actuators. 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The sensor prepared at a ratio of VZnAc2(0.50M)/VNaOH(5.0M)=1 without any surfactant exhibited the best performance, which was characterized by high response and good selectivity to low concentrations of H2S at room temperature. The sensor also had a high response, high selectivity and short response time to low concentrations of C2H5OH at 350°C. These characteristics make the sensor to be a promising candidate for practical materials detecting low concentrations of H2S and C2H5OH. Especially, the response to 0.05ppm H2S attained 1.7 at room temperature.</abstract><doi>10.1016/j.snb.2005.03.011</doi><tpages>4</tpages></addata></record> |
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| source | Elsevier ScienceDirect Journals Complete |
| subjects | Actuators Low concentrations Nanorods Phase composition Selectivity Sensors Surfactants Zinc oxide |
| title | Detection of H2S down to ppb levels at room temperature using sensors based on ZnO nanorods |
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