Reduced oxygen diffusion through beryllium doped platinum electrodes
Using first principles electronic structure calculations we screen nine elements for their potential to retard oxygen diffusion through polycrystalline Pt (p-Pt) films. We determine that O diffuses preferentially as interstitial along Pt grain boundaries (GBs). The calculated barriers are compatible...
Gespeichert in:
| Veröffentlicht in: | Applied physics letters 1999-09, Vol.75 (10), p.1389-1391 |
|---|---|
| Hauptverfasser: | , , |
| Format: | Artikel |
| Sprache: | eng |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 1391 |
|---|---|
| container_issue | 10 |
| container_start_page | 1389 |
| container_title | Applied physics letters |
| container_volume | 75 |
| creator | Stumpf, R. Liu, C.-L. Tracy, C. |
| description | Using first principles electronic structure calculations we screen nine elements for their potential to retard oxygen diffusion through polycrystalline Pt (p-Pt) films. We determine that O diffuses preferentially as interstitial along Pt grain boundaries (GBs). The calculated barriers are compatible with experimental estimates. We find that Be controls O diffusion through p-Pt. Beryllium segregates to Pt GBs at interstitial (i) and substitutional (s) sites. i-Be is slightly less mobile than O and it repels O, thus stuffing the GB. s-Be has a high diffusion barrier and it forms strong bonds to O, trapping O in the GB. Experiments confirm our theoretical predictions. |
| doi_str_mv | 10.1063/1.124703 |
| format | Article |
| fullrecord | <record><control><sourceid>crossref</sourceid><recordid>TN_cdi_crossref_primary_10_1063_1_124703</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>10_1063_1_124703</sourcerecordid><originalsourceid>FETCH-LOGICAL-c225t-a14ac175ca3d6ead88e8ad2ce9e47777a4a32323c51d25499575f1726e6847633</originalsourceid><addsrcrecordid>eNotj09LxDAUxIMoWFfBj9Cjl655efnTHmXVVVgQRM8lJq-7lW5Tkhbst7eyzhyGHwwDw9gt8DVwjfewBiENxzOWATemQIDynGWccyx0peCSXaX0vaASiBl7fCc_OfJ5-Jn31Oe-bZoptaHPx0MM0_6Qf1Gcu66djrkPw1IcOju2_YLUkRtj8JSu2UVju0Q3_7lin89PH5uXYve2fd087AonhBoLC9I6MMpZ9JqsL0sqrReOKpJmkZUWxWKnwAslq0oZ1YARmnQpjUZcsbvTroshpUhNPcT2aONcA6__3tdQn97jL3AbTE0</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype></control><display><type>article</type><title>Reduced oxygen diffusion through beryllium doped platinum electrodes</title><source>AIP Journals Complete</source><source>AIP Digital Archive</source><creator>Stumpf, R. ; Liu, C.-L. ; Tracy, C.</creator><creatorcontrib>Stumpf, R. ; Liu, C.-L. ; Tracy, C.</creatorcontrib><description>Using first principles electronic structure calculations we screen nine elements for their potential to retard oxygen diffusion through polycrystalline Pt (p-Pt) films. We determine that O diffuses preferentially as interstitial along Pt grain boundaries (GBs). The calculated barriers are compatible with experimental estimates. We find that Be controls O diffusion through p-Pt. Beryllium segregates to Pt GBs at interstitial (i) and substitutional (s) sites. i-Be is slightly less mobile than O and it repels O, thus stuffing the GB. s-Be has a high diffusion barrier and it forms strong bonds to O, trapping O in the GB. Experiments confirm our theoretical predictions.</description><identifier>ISSN: 0003-6951</identifier><identifier>EISSN: 1077-3118</identifier><identifier>DOI: 10.1063/1.124703</identifier><language>eng</language><ispartof>Applied physics letters, 1999-09, Vol.75 (10), p.1389-1391</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c225t-a14ac175ca3d6ead88e8ad2ce9e47777a4a32323c51d25499575f1726e6847633</citedby><cites>FETCH-LOGICAL-c225t-a14ac175ca3d6ead88e8ad2ce9e47777a4a32323c51d25499575f1726e6847633</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27915,27916</link.rule.ids></links><search><creatorcontrib>Stumpf, R.</creatorcontrib><creatorcontrib>Liu, C.-L.</creatorcontrib><creatorcontrib>Tracy, C.</creatorcontrib><title>Reduced oxygen diffusion through beryllium doped platinum electrodes</title><title>Applied physics letters</title><description>Using first principles electronic structure calculations we screen nine elements for their potential to retard oxygen diffusion through polycrystalline Pt (p-Pt) films. We determine that O diffuses preferentially as interstitial along Pt grain boundaries (GBs). The calculated barriers are compatible with experimental estimates. We find that Be controls O diffusion through p-Pt. Beryllium segregates to Pt GBs at interstitial (i) and substitutional (s) sites. i-Be is slightly less mobile than O and it repels O, thus stuffing the GB. s-Be has a high diffusion barrier and it forms strong bonds to O, trapping O in the GB. Experiments confirm our theoretical predictions.</description><issn>0003-6951</issn><issn>1077-3118</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1999</creationdate><recordtype>article</recordtype><recordid>eNotj09LxDAUxIMoWFfBj9Cjl655efnTHmXVVVgQRM8lJq-7lW5Tkhbst7eyzhyGHwwDw9gt8DVwjfewBiENxzOWATemQIDynGWccyx0peCSXaX0vaASiBl7fCc_OfJ5-Jn31Oe-bZoptaHPx0MM0_6Qf1Gcu66djrkPw1IcOju2_YLUkRtj8JSu2UVju0Q3_7lin89PH5uXYve2fd087AonhBoLC9I6MMpZ9JqsL0sqrReOKpJmkZUWxWKnwAslq0oZ1YARmnQpjUZcsbvTroshpUhNPcT2aONcA6__3tdQn97jL3AbTE0</recordid><startdate>19990906</startdate><enddate>19990906</enddate><creator>Stumpf, R.</creator><creator>Liu, C.-L.</creator><creator>Tracy, C.</creator><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>19990906</creationdate><title>Reduced oxygen diffusion through beryllium doped platinum electrodes</title><author>Stumpf, R. ; Liu, C.-L. ; Tracy, C.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c225t-a14ac175ca3d6ead88e8ad2ce9e47777a4a32323c51d25499575f1726e6847633</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1999</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Stumpf, R.</creatorcontrib><creatorcontrib>Liu, C.-L.</creatorcontrib><creatorcontrib>Tracy, C.</creatorcontrib><collection>CrossRef</collection><jtitle>Applied physics letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Stumpf, R.</au><au>Liu, C.-L.</au><au>Tracy, C.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Reduced oxygen diffusion through beryllium doped platinum electrodes</atitle><jtitle>Applied physics letters</jtitle><date>1999-09-06</date><risdate>1999</risdate><volume>75</volume><issue>10</issue><spage>1389</spage><epage>1391</epage><pages>1389-1391</pages><issn>0003-6951</issn><eissn>1077-3118</eissn><abstract>Using first principles electronic structure calculations we screen nine elements for their potential to retard oxygen diffusion through polycrystalline Pt (p-Pt) films. We determine that O diffuses preferentially as interstitial along Pt grain boundaries (GBs). The calculated barriers are compatible with experimental estimates. We find that Be controls O diffusion through p-Pt. Beryllium segregates to Pt GBs at interstitial (i) and substitutional (s) sites. i-Be is slightly less mobile than O and it repels O, thus stuffing the GB. s-Be has a high diffusion barrier and it forms strong bonds to O, trapping O in the GB. Experiments confirm our theoretical predictions.</abstract><doi>10.1063/1.124703</doi><tpages>3</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0003-6951 |
| ispartof | Applied physics letters, 1999-09, Vol.75 (10), p.1389-1391 |
| issn | 0003-6951 1077-3118 |
| language | eng |
| recordid | cdi_crossref_primary_10_1063_1_124703 |
| source | AIP Journals Complete; AIP Digital Archive |
| title | Reduced oxygen diffusion through beryllium doped platinum electrodes |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-14T23%3A02%3A06IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-crossref&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Reduced%20oxygen%20diffusion%20through%20beryllium%20doped%20platinum%20electrodes&rft.jtitle=Applied%20physics%20letters&rft.au=Stumpf,%20R.&rft.date=1999-09-06&rft.volume=75&rft.issue=10&rft.spage=1389&rft.epage=1391&rft.pages=1389-1391&rft.issn=0003-6951&rft.eissn=1077-3118&rft_id=info:doi/10.1063/1.124703&rft_dat=%3Ccrossref%3E10_1063_1_124703%3C/crossref%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_id=info:pmid/&rfr_iscdi=true |