Conduction mechanism and gas sensing properties of CoFe2O4 nanocomposite thick films for H2S gas
► Polycrystalline CoFe2O4 nanomaterials have been prepared by sol–gel citrate method for H2S gas detection. ► Conductivity was higher for 0.2wt% Sm and 10wt% Ni doped CoFe2O4. ► The sensor shows high degree of selectivity towards H2S gas at an operating temperature 200°C. Nanocrystalline 10wt% Ni an...
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| Veröffentlicht in: | Talanta (Oxford) 2012-01, Vol.89, p.183-188 |
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| creator | Bodade, Anjali B. Bodade, Archana B. Wankhade, H.G. Chaudhari, G.N. Kothari, D.C. |
| description | ► Polycrystalline CoFe2O4 nanomaterials have been prepared by sol–gel citrate method for H2S gas detection. ► Conductivity was higher for 0.2wt% Sm and 10wt% Ni doped CoFe2O4. ► The sensor shows high degree of selectivity towards H2S gas at an operating temperature 200°C.
Nanocrystalline 10wt% Ni and 0.2wt% Sm doped CoFe2O4 was prepared by sol–gel citrate method and calcined at different temperatures. The CoFe2O4 nanoparticles were characterized by X-ray diffraction (XRD), electrical properties were studied by impedance analysis. The XRD of CoFe2O4 shows cubic structure with grain growth of 40nm. The ac conductivity was studied for the sample 10wt% Ni and 0.2wt% Sm doped CoFe2O4 calcined at 650°C, at temperature range from 100 to 700°C over a wide range of frequencies from 50Hz to 200kHz. The result indicates that the ac conductivity depend on temperature, frequency and concentration of dopant. Nanocrystalline 10wt% Ni and 0.2wt% Sm doped CoFe2O4 was found to be good H2S sensor with high sensitivity and selectivity. |
| doi_str_mv | 10.1016/j.talanta.2011.12.013 |
| format | Article |
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Nanocrystalline 10wt% Ni and 0.2wt% Sm doped CoFe2O4 was prepared by sol–gel citrate method and calcined at different temperatures. The CoFe2O4 nanoparticles were characterized by X-ray diffraction (XRD), electrical properties were studied by impedance analysis. The XRD of CoFe2O4 shows cubic structure with grain growth of 40nm. The ac conductivity was studied for the sample 10wt% Ni and 0.2wt% Sm doped CoFe2O4 calcined at 650°C, at temperature range from 100 to 700°C over a wide range of frequencies from 50Hz to 200kHz. The result indicates that the ac conductivity depend on temperature, frequency and concentration of dopant. Nanocrystalline 10wt% Ni and 0.2wt% Sm doped CoFe2O4 was found to be good H2S sensor with high sensitivity and selectivity.</description><identifier>ISSN: 0039-9140</identifier><identifier>EISSN: 1873-3573</identifier><identifier>DOI: 10.1016/j.talanta.2011.12.013</identifier><identifier>PMID: 22284478</identifier><identifier>CODEN: TLNTA2</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Ac conductivity ; Analytical chemistry ; Chemistry ; Citric Acid - chemistry ; Cobalt - chemistry ; CoFe2O4 ; Electric Conductivity ; Electric Impedance ; Electrochemistry ; Exact sciences and technology ; Ferric Compounds - chemistry ; General, instrumentation ; H2S Gas ; Hot Temperature ; Hydrogen Sulfide - analysis ; Nanocomposites - chemistry ; Nanocrystals ; Nanomaterials ; Nanostructure ; Nickel ; Nickel - chemistry ; Phase Transition ; Resistivity ; Roasting ; Samarium - chemistry ; Selectivity ; Sensitivity ; Sensitivity and Specificity ; Sol gel process ; Thick films ; X-Ray Diffraction</subject><ispartof>Talanta (Oxford), 2012-01, Vol.89, p.183-188</ispartof><rights>2011 Elsevier B.V.</rights><rights>2015 INIST-CNRS</rights><rights>Copyright © 2011 Elsevier B.V. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c357t-8ba0d9a0af556b7962b7ec3b082373f7eec28c7569282624ae199a7c9c2b9d393</citedby><cites>FETCH-LOGICAL-c357t-8ba0d9a0af556b7962b7ec3b082373f7eec28c7569282624ae199a7c9c2b9d393</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0039914011010757$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,776,780,3537,27901,27902,65306</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=25618235$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/22284478$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Bodade, Anjali B.</creatorcontrib><creatorcontrib>Bodade, Archana B.</creatorcontrib><creatorcontrib>Wankhade, H.G.</creatorcontrib><creatorcontrib>Chaudhari, G.N.</creatorcontrib><creatorcontrib>Kothari, D.C.</creatorcontrib><title>Conduction mechanism and gas sensing properties of CoFe2O4 nanocomposite thick films for H2S gas</title><title>Talanta (Oxford)</title><addtitle>Talanta</addtitle><description>► Polycrystalline CoFe2O4 nanomaterials have been prepared by sol–gel citrate method for H2S gas detection. ► Conductivity was higher for 0.2wt% Sm and 10wt% Ni doped CoFe2O4. ► The sensor shows high degree of selectivity towards H2S gas at an operating temperature 200°C.
Nanocrystalline 10wt% Ni and 0.2wt% Sm doped CoFe2O4 was prepared by sol–gel citrate method and calcined at different temperatures. The CoFe2O4 nanoparticles were characterized by X-ray diffraction (XRD), electrical properties were studied by impedance analysis. The XRD of CoFe2O4 shows cubic structure with grain growth of 40nm. The ac conductivity was studied for the sample 10wt% Ni and 0.2wt% Sm doped CoFe2O4 calcined at 650°C, at temperature range from 100 to 700°C over a wide range of frequencies from 50Hz to 200kHz. The result indicates that the ac conductivity depend on temperature, frequency and concentration of dopant. Nanocrystalline 10wt% Ni and 0.2wt% Sm doped CoFe2O4 was found to be good H2S sensor with high sensitivity and selectivity.</description><subject>Ac conductivity</subject><subject>Analytical chemistry</subject><subject>Chemistry</subject><subject>Citric Acid - chemistry</subject><subject>Cobalt - chemistry</subject><subject>CoFe2O4</subject><subject>Electric Conductivity</subject><subject>Electric Impedance</subject><subject>Electrochemistry</subject><subject>Exact sciences and technology</subject><subject>Ferric Compounds - chemistry</subject><subject>General, instrumentation</subject><subject>H2S Gas</subject><subject>Hot Temperature</subject><subject>Hydrogen Sulfide - analysis</subject><subject>Nanocomposites - chemistry</subject><subject>Nanocrystals</subject><subject>Nanomaterials</subject><subject>Nanostructure</subject><subject>Nickel</subject><subject>Nickel - chemistry</subject><subject>Phase Transition</subject><subject>Resistivity</subject><subject>Roasting</subject><subject>Samarium - chemistry</subject><subject>Selectivity</subject><subject>Sensitivity</subject><subject>Sensitivity and Specificity</subject><subject>Sol gel process</subject><subject>Thick films</subject><subject>X-Ray Diffraction</subject><issn>0039-9140</issn><issn>1873-3573</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqF0ctu1DAUBmALgehQeASQN6hskvqSxPEKoVFLkSp1QVkbxzlpPST24ONB4u3r0Qxl1668-c7F_yHkPWc1Z7w739TZzjZkWwvGec1Fzbh8QVa8V7KSrZIvyYoxqSvNG3ZC3iBuGGNCMvmanAgh-qZR_Yr8XMcw7lz2MdAF3L0NHhdqw0jvLFKEgD7c0W2KW0jZA9I40XW8BHHT0GBDdHHZRvQZaL737hed_LwgnWKiV-L7vsdb8mqyM8K743tKflxe3K6vquubr9_WX64rV5bNVT9YNmrL7NS23aB0JwYFTg6sF1LJSQE40TvVdlr0ohONBa61VU47MehRanlKzg59y66_d4DZLB4dzCUjiDs0mvdatlKJIj89KUu8upONava0PVCXImKCyWyTX2z6W9DedWZjjmcw-zMYLkw5Q6n7cByxGxYYH6v-5V7AxyOw6Ow8JRucx_-u7Xj5eFvc54ODEt0fD8mg8xAcjD6By2aM_plVHgCVR6eM</recordid><startdate>20120130</startdate><enddate>20120130</enddate><creator>Bodade, Anjali B.</creator><creator>Bodade, Archana B.</creator><creator>Wankhade, H.G.</creator><creator>Chaudhari, G.N.</creator><creator>Kothari, D.C.</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QQ</scope><scope>7SR</scope><scope>8FD</scope><scope>JG9</scope><scope>7X8</scope></search><sort><creationdate>20120130</creationdate><title>Conduction mechanism and gas sensing properties of CoFe2O4 nanocomposite thick films for H2S gas</title><author>Bodade, Anjali B. ; Bodade, Archana B. ; Wankhade, H.G. ; Chaudhari, G.N. ; Kothari, D.C.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c357t-8ba0d9a0af556b7962b7ec3b082373f7eec28c7569282624ae199a7c9c2b9d393</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Ac conductivity</topic><topic>Analytical chemistry</topic><topic>Chemistry</topic><topic>Citric Acid - chemistry</topic><topic>Cobalt - chemistry</topic><topic>CoFe2O4</topic><topic>Electric Conductivity</topic><topic>Electric Impedance</topic><topic>Electrochemistry</topic><topic>Exact sciences and technology</topic><topic>Ferric Compounds - chemistry</topic><topic>General, instrumentation</topic><topic>H2S Gas</topic><topic>Hot Temperature</topic><topic>Hydrogen Sulfide - analysis</topic><topic>Nanocomposites - chemistry</topic><topic>Nanocrystals</topic><topic>Nanomaterials</topic><topic>Nanostructure</topic><topic>Nickel</topic><topic>Nickel - chemistry</topic><topic>Phase Transition</topic><topic>Resistivity</topic><topic>Roasting</topic><topic>Samarium - chemistry</topic><topic>Selectivity</topic><topic>Sensitivity</topic><topic>Sensitivity and Specificity</topic><topic>Sol gel process</topic><topic>Thick films</topic><topic>X-Ray Diffraction</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Bodade, Anjali B.</creatorcontrib><creatorcontrib>Bodade, Archana B.</creatorcontrib><creatorcontrib>Wankhade, H.G.</creatorcontrib><creatorcontrib>Chaudhari, G.N.</creatorcontrib><creatorcontrib>Kothari, D.C.</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Ceramic Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>MEDLINE - Academic</collection><jtitle>Talanta (Oxford)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Bodade, Anjali B.</au><au>Bodade, Archana B.</au><au>Wankhade, H.G.</au><au>Chaudhari, G.N.</au><au>Kothari, D.C.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Conduction mechanism and gas sensing properties of CoFe2O4 nanocomposite thick films for H2S gas</atitle><jtitle>Talanta (Oxford)</jtitle><addtitle>Talanta</addtitle><date>2012-01-30</date><risdate>2012</risdate><volume>89</volume><spage>183</spage><epage>188</epage><pages>183-188</pages><issn>0039-9140</issn><eissn>1873-3573</eissn><coden>TLNTA2</coden><abstract>► Polycrystalline CoFe2O4 nanomaterials have been prepared by sol–gel citrate method for H2S gas detection. ► Conductivity was higher for 0.2wt% Sm and 10wt% Ni doped CoFe2O4. ► The sensor shows high degree of selectivity towards H2S gas at an operating temperature 200°C.
Nanocrystalline 10wt% Ni and 0.2wt% Sm doped CoFe2O4 was prepared by sol–gel citrate method and calcined at different temperatures. The CoFe2O4 nanoparticles were characterized by X-ray diffraction (XRD), electrical properties were studied by impedance analysis. The XRD of CoFe2O4 shows cubic structure with grain growth of 40nm. The ac conductivity was studied for the sample 10wt% Ni and 0.2wt% Sm doped CoFe2O4 calcined at 650°C, at temperature range from 100 to 700°C over a wide range of frequencies from 50Hz to 200kHz. The result indicates that the ac conductivity depend on temperature, frequency and concentration of dopant. Nanocrystalline 10wt% Ni and 0.2wt% Sm doped CoFe2O4 was found to be good H2S sensor with high sensitivity and selectivity.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><pmid>22284478</pmid><doi>10.1016/j.talanta.2011.12.013</doi><tpages>6</tpages></addata></record> |
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| subjects | Ac conductivity Analytical chemistry Chemistry Citric Acid - chemistry Cobalt - chemistry CoFe2O4 Electric Conductivity Electric Impedance Electrochemistry Exact sciences and technology Ferric Compounds - chemistry General, instrumentation H2S Gas Hot Temperature Hydrogen Sulfide - analysis Nanocomposites - chemistry Nanocrystals Nanomaterials Nanostructure Nickel Nickel - chemistry Phase Transition Resistivity Roasting Samarium - chemistry Selectivity Sensitivity Sensitivity and Specificity Sol gel process Thick films X-Ray Diffraction |
| title | Conduction mechanism and gas sensing properties of CoFe2O4 nanocomposite thick films for H2S gas |
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