Palladium thin films for hydrogen sensing in aqueous electrolytes
In this work, differently prepared palladium films are tested toward their hydrogen sensing properties in aqueous electrolytes. The Pd thin films were either electroless deposited, electrochemically deposited, or prepared by physical vapor deposition. The outcome of each fabrication process and char...
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| Veröffentlicht in: | Physica status solidi. A, Applications and materials science Applications and materials science, 2015-06, Vol.212 (6), p.1273-1280 |
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| container_title | Physica status solidi. A, Applications and materials science |
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| creator | Walkner, Sarah Schimo, Gabriela Mardare, Andrei Ionut Hassel, Achim Walter |
| description | In this work, differently prepared palladium films are tested toward their hydrogen sensing properties in aqueous electrolytes. The Pd thin films were either electroless deposited, electrochemically deposited, or prepared by physical vapor deposition. The outcome of each fabrication process and characteristics of the Pd films were determined by means of SEM and cyclic voltammetry. Electrochemical impedance spectroscopy was performed in order to calibrate the prepared hydrogen sensors. The Pd films react on different hydrogen concentrations in the electrolyte by changing their electrical resistivity. Elemental hydrogen can diffuse into the Pd film leading to a lattice expansion and a phase transition. A second hydrogen sensing mechanism due to a change in charge transfer resistance can be observed. |
| doi_str_mv | 10.1002/pssa.201431716 |
| format | Article |
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The Pd thin films were either electroless deposited, electrochemically deposited, or prepared by physical vapor deposition. The outcome of each fabrication process and characteristics of the Pd films were determined by means of SEM and cyclic voltammetry. Electrochemical impedance spectroscopy was performed in order to calibrate the prepared hydrogen sensors. The Pd films react on different hydrogen concentrations in the electrolyte by changing their electrical resistivity. Elemental hydrogen can diffuse into the Pd film leading to a lattice expansion and a phase transition. A second hydrogen sensing mechanism due to a change in charge transfer resistance can be observed.</description><identifier>ISSN: 1862-6300</identifier><identifier>EISSN: 1862-6319</identifier><identifier>DOI: 10.1002/pssa.201431716</identifier><language>eng</language><publisher>Weinheim: Blackwell Publishing Ltd</publisher><subject>Aqueous electrolytes ; Charge transfer ; Deposition ; Detection ; Electrochemical impedance spectroscopy ; electrodeposition ; gas sensors ; Hydrogen ; Palladium ; Sensors ; Thin films</subject><ispartof>Physica status solidi. A, Applications and materials science, 2015-06, Vol.212 (6), p.1273-1280</ispartof><rights>2015 WILEY−VCH Verlag GmbH & Co. KGaA, Weinheim</rights><rights>2015 WILEY-VCH Verlag GmbH & Co. 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A second hydrogen sensing mechanism due to a change in charge transfer resistance can be observed.</description><subject>Aqueous electrolytes</subject><subject>Charge transfer</subject><subject>Deposition</subject><subject>Detection</subject><subject>Electrochemical impedance spectroscopy</subject><subject>electrodeposition</subject><subject>gas sensors</subject><subject>Hydrogen</subject><subject>Palladium</subject><subject>Sensors</subject><subject>Thin films</subject><issn>1862-6300</issn><issn>1862-6319</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNqFkMFLwzAUh4MoOKdXzwUvXjrzkiZpjmPoVMYcbuoxZG26dXbtTFq0_70ZlSFePOVBvu_xez-ELgEPAGNys3NODwiGiIIAfoR6EHMScgry-DBjfIrOnNtgHLFIQA8NZ7oodJo326Be52WQ5cXWBVllg3Wb2mplysCZ0uXlKvC_-qMxVeMCU5iktlXR1sado5NMF85c_Lx99HJ3uxjdh5On8cNoOAmTiMU8lIQyvhScJDHNmEilJHEKUSIFWVKSpMxwjSOcafDAkkmdQRolhseaEiplTPvoutu7s5WP4Wq1zV1ifPpyn0mB8CdiAME8evUH3VSNLX06BVxiEBIT7qlBRyW2cs6aTO1svtW2VYDVvlG1b1QdGvWC7ITPvDDtP7SazefD327YubmrzdfB1fZdcUEFU2_TsZouXh85f54oSb8BF56ImA</recordid><startdate>201506</startdate><enddate>201506</enddate><creator>Walkner, Sarah</creator><creator>Schimo, Gabriela</creator><creator>Mardare, Andrei Ionut</creator><creator>Hassel, Achim Walter</creator><general>Blackwell Publishing Ltd</general><general>Wiley Subscription Services, Inc</general><scope>BSCLL</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>201506</creationdate><title>Palladium thin films for hydrogen sensing in aqueous electrolytes</title><author>Walkner, Sarah ; Schimo, Gabriela ; Mardare, Andrei Ionut ; Hassel, Achim Walter</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4586-92356b762c83f57d9928d14c972b32cd5e6a040fa1c83b59af1d4ce68a3239983</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>Aqueous electrolytes</topic><topic>Charge transfer</topic><topic>Deposition</topic><topic>Detection</topic><topic>Electrochemical impedance spectroscopy</topic><topic>electrodeposition</topic><topic>gas sensors</topic><topic>Hydrogen</topic><topic>Palladium</topic><topic>Sensors</topic><topic>Thin films</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Walkner, Sarah</creatorcontrib><creatorcontrib>Schimo, Gabriela</creatorcontrib><creatorcontrib>Mardare, Andrei Ionut</creatorcontrib><creatorcontrib>Hassel, Achim Walter</creatorcontrib><collection>Istex</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Physica status solidi. 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| language | eng |
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| source | Wiley Journals |
| subjects | Aqueous electrolytes Charge transfer Deposition Detection Electrochemical impedance spectroscopy electrodeposition gas sensors Hydrogen Palladium Sensors Thin films |
| title | Palladium thin films for hydrogen sensing in aqueous electrolytes |
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