Electrode materials for potentiometric hydrogen sensors
Due to their relatively high sensitivity, improved long-term stability, possibilities for miniaturization and low cost products, mixed potential solid electrolyte sensors can be competitive for the in situ measurement of hydrogen trace concentrations in oxygen containing gases. Their response behavi...
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| Veröffentlicht in: | Solid state ionics 2006-10, Vol.177 (26), p.2301-2304 |
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| container_title | Solid state ionics |
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| creator | Zosel, J. Schiffel, G. Gerlach, F. Ahlborn, K. Sasum, U. Vashook, V. Guth, U. |
| description | Due to their relatively high sensitivity, improved long-term stability, possibilities for miniaturization and low cost products, mixed potential solid electrolyte sensors can be competitive for the in situ measurement of hydrogen trace concentrations in oxygen containing gases. Their response behavior in non-equilibrated oxygen containing gas mixtures is mainly determined by the catalytic activity of the measuring electrode and depends strongly on preparation and measuring conditions. In this work the sensitivity of electrodes made of composites (Au/MeO) has been investigated in hydrogen containing gases in the concentration range
φ(H
2)
=
0…800 vol.-ppm using a two-chamber setup with Pt-air reference. Electrodes made of Au/Nb
2O
5 composites show the highest sensitivities of up to 20
mV/vol.-ppm at
φ(H
2)
=
10 vol.-ppm and the lowest catalytic activity for hydrogen oxidation. Selected composite materials were tested additionally in self-heated solid electrolyte sensors with both electrodes exposed to the same atmosphere (gas-symmetrical sensor). |
| doi_str_mv | 10.1016/j.ssi.2006.01.004 |
| format | Article |
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φ(H
2)
=
0…800 vol.-ppm using a two-chamber setup with Pt-air reference. Electrodes made of Au/Nb
2O
5 composites show the highest sensitivities of up to 20
mV/vol.-ppm at
φ(H
2)
=
10 vol.-ppm and the lowest catalytic activity for hydrogen oxidation. Selected composite materials were tested additionally in self-heated solid electrolyte sensors with both electrodes exposed to the same atmosphere (gas-symmetrical sensor).</description><identifier>ISSN: 0167-2738</identifier><identifier>EISSN: 1872-7689</identifier><identifier>DOI: 10.1016/j.ssi.2006.01.004</identifier><language>eng</language><publisher>Elsevier B.V</publisher><subject>Catalytic activity ; Gas-symmetrical sensor ; Hydrogen sensitivity ; Mixed potential sensor ; Yttria Stabilized Zirconia (YSZ)</subject><ispartof>Solid state ionics, 2006-10, Vol.177 (26), p.2301-2304</ispartof><rights>2006 Elsevier B.V.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c328t-6505d694f5ff5007c2c8432da0c629ffca09fb0eb3b467b1d6eef468f53c4aca3</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.ssi.2006.01.004$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,777,781,3537,27905,27906,45976</link.rule.ids></links><search><creatorcontrib>Zosel, J.</creatorcontrib><creatorcontrib>Schiffel, G.</creatorcontrib><creatorcontrib>Gerlach, F.</creatorcontrib><creatorcontrib>Ahlborn, K.</creatorcontrib><creatorcontrib>Sasum, U.</creatorcontrib><creatorcontrib>Vashook, V.</creatorcontrib><creatorcontrib>Guth, U.</creatorcontrib><title>Electrode materials for potentiometric hydrogen sensors</title><title>Solid state ionics</title><description>Due to their relatively high sensitivity, improved long-term stability, possibilities for miniaturization and low cost products, mixed potential solid electrolyte sensors can be competitive for the in situ measurement of hydrogen trace concentrations in oxygen containing gases. Their response behavior in non-equilibrated oxygen containing gas mixtures is mainly determined by the catalytic activity of the measuring electrode and depends strongly on preparation and measuring conditions. In this work the sensitivity of electrodes made of composites (Au/MeO) has been investigated in hydrogen containing gases in the concentration range
φ(H
2)
=
0…800 vol.-ppm using a two-chamber setup with Pt-air reference. Electrodes made of Au/Nb
2O
5 composites show the highest sensitivities of up to 20
mV/vol.-ppm at
φ(H
2)
=
10 vol.-ppm and the lowest catalytic activity for hydrogen oxidation. Selected composite materials were tested additionally in self-heated solid electrolyte sensors with both electrodes exposed to the same atmosphere (gas-symmetrical sensor).</description><subject>Catalytic activity</subject><subject>Gas-symmetrical sensor</subject><subject>Hydrogen sensitivity</subject><subject>Mixed potential sensor</subject><subject>Yttria Stabilized Zirconia (YSZ)</subject><issn>0167-2738</issn><issn>1872-7689</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><recordid>eNp9kD1PwzAQQC0EEqXwA9gysSWc7cROxISq8iFVYoHZcpwzuEriYrtI_fe4KjPL3fLeSfcIuaVQUaDiflvF6CoGICqgFUB9Rha0layUou3OySIzsmSSt5fkKsYtZJC3YkHkekSTgh-wmHTC4PQYC-tDsfMJ5-T8hCk4U3wdhuA_cS4iztGHeE0ubEbx5m8vycfT-n31Um7enl9Xj5vScNamUjTQDKKrbWNtAyANM23N2aDBCNZZazR0tgfseV8L2dNBINpatLbhptZG8yW5O93dBf-9x5jU5KLBcdQz-n1UrOMMZJ5LQk-gCT7GgFbtgpt0OCgK6phIbVVOpI6JFFCVE2Xn4eRg_uDHYVDROJwNDi7kKmrw7h_7F1rIb_0</recordid><startdate>20061031</startdate><enddate>20061031</enddate><creator>Zosel, J.</creator><creator>Schiffel, G.</creator><creator>Gerlach, F.</creator><creator>Ahlborn, K.</creator><creator>Sasum, U.</creator><creator>Vashook, V.</creator><creator>Guth, U.</creator><general>Elsevier B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7U5</scope><scope>8FD</scope><scope>L7M</scope></search><sort><creationdate>20061031</creationdate><title>Electrode materials for potentiometric hydrogen sensors</title><author>Zosel, J. ; Schiffel, G. ; Gerlach, F. ; Ahlborn, K. ; Sasum, U. ; Vashook, V. ; Guth, U.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c328t-6505d694f5ff5007c2c8432da0c629ffca09fb0eb3b467b1d6eef468f53c4aca3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><topic>Catalytic activity</topic><topic>Gas-symmetrical sensor</topic><topic>Hydrogen sensitivity</topic><topic>Mixed potential sensor</topic><topic>Yttria Stabilized Zirconia (YSZ)</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zosel, J.</creatorcontrib><creatorcontrib>Schiffel, G.</creatorcontrib><creatorcontrib>Gerlach, F.</creatorcontrib><creatorcontrib>Ahlborn, K.</creatorcontrib><creatorcontrib>Sasum, U.</creatorcontrib><creatorcontrib>Vashook, V.</creatorcontrib><creatorcontrib>Guth, U.</creatorcontrib><collection>CrossRef</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Solid state ionics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zosel, J.</au><au>Schiffel, G.</au><au>Gerlach, F.</au><au>Ahlborn, K.</au><au>Sasum, U.</au><au>Vashook, V.</au><au>Guth, U.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Electrode materials for potentiometric hydrogen sensors</atitle><jtitle>Solid state ionics</jtitle><date>2006-10-31</date><risdate>2006</risdate><volume>177</volume><issue>26</issue><spage>2301</spage><epage>2304</epage><pages>2301-2304</pages><issn>0167-2738</issn><eissn>1872-7689</eissn><abstract>Due to their relatively high sensitivity, improved long-term stability, possibilities for miniaturization and low cost products, mixed potential solid electrolyte sensors can be competitive for the in situ measurement of hydrogen trace concentrations in oxygen containing gases. Their response behavior in non-equilibrated oxygen containing gas mixtures is mainly determined by the catalytic activity of the measuring electrode and depends strongly on preparation and measuring conditions. In this work the sensitivity of electrodes made of composites (Au/MeO) has been investigated in hydrogen containing gases in the concentration range
φ(H
2)
=
0…800 vol.-ppm using a two-chamber setup with Pt-air reference. Electrodes made of Au/Nb
2O
5 composites show the highest sensitivities of up to 20
mV/vol.-ppm at
φ(H
2)
=
10 vol.-ppm and the lowest catalytic activity for hydrogen oxidation. Selected composite materials were tested additionally in self-heated solid electrolyte sensors with both electrodes exposed to the same atmosphere (gas-symmetrical sensor).</abstract><pub>Elsevier B.V</pub><doi>10.1016/j.ssi.2006.01.004</doi><tpages>4</tpages></addata></record> |
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| language | eng |
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| source | Elsevier ScienceDirect Journals |
| subjects | Catalytic activity Gas-symmetrical sensor Hydrogen sensitivity Mixed potential sensor Yttria Stabilized Zirconia (YSZ) |
| title | Electrode materials for potentiometric hydrogen sensors |
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