Anodic dissolution of cobalt in aqueous sodium nitrate solution at high current densities
The present work focuses on the anodic dissolution of cobalt and the surface texture development in 2.9 mol/L sodium nitrate solution under current controlled conditions at 25 and 30 A/cm2. Before the electrochemical experiments the crystallographic orientation of the samples was investigated by EBS...
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| Veröffentlicht in: | Materials and corrosion 2015-06, Vol.66 (6), p.549-556 |
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| container_title | Materials and corrosion |
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| creator | Schneider, M. Schubert, N. Höhn, S. Michaelis, A. |
| description | The present work focuses on the anodic dissolution of cobalt and the surface texture development in 2.9 mol/L sodium nitrate solution under current controlled conditions at 25 and 30 A/cm2. Before the electrochemical experiments the crystallographic orientation of the samples was investigated by EBSD. The anodic behavior of cobalt as well as the surface topography was microscopically observed using a special electrochemical through flow cell in‐operando during the current controlled dissolution. The experiments were completed by SEM/EDX‐analysis. The authors evidence that the dissolution process at high current densities is independent of the crystallographic orientation of the sample and leads to a surface polishing. The current efficiency is approximately 100%. Only a weak and temporary oxygen evolution was detected at 25 A/cm2. |
| doi_str_mv | 10.1002/maco.201407638 |
| format | Article |
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Before the electrochemical experiments the crystallographic orientation of the samples was investigated by EBSD. The anodic behavior of cobalt as well as the surface topography was microscopically observed using a special electrochemical through flow cell in‐operando during the current controlled dissolution. The experiments were completed by SEM/EDX‐analysis. The authors evidence that the dissolution process at high current densities is independent of the crystallographic orientation of the sample and leads to a surface polishing. The current efficiency is approximately 100%. Only a weak and temporary oxygen evolution was detected at 25 A/cm2.</description><identifier>ISSN: 0947-5117</identifier><identifier>EISSN: 1521-4176</identifier><identifier>DOI: 10.1002/maco.201407638</identifier><language>eng</language><publisher>Weinheim: Blackwell Publishing Ltd</publisher><subject>anodic cobalt dissolution ; Anodic dissolution ; Cobalt ; Crystallography ; Density ; Dissolution ; electrochemical machining ; High current ; in-operando microscopy ; Orientation ; Sodium nitrates ; surface texture ; Texture</subject><ispartof>Materials and corrosion, 2015-06, Vol.66 (6), p.549-556</ispartof><rights>2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim</rights><rights>2015 WILEY-VCH Verlag GmbH & Co. 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Before the electrochemical experiments the crystallographic orientation of the samples was investigated by EBSD. The anodic behavior of cobalt as well as the surface topography was microscopically observed using a special electrochemical through flow cell in‐operando during the current controlled dissolution. The experiments were completed by SEM/EDX‐analysis. The authors evidence that the dissolution process at high current densities is independent of the crystallographic orientation of the sample and leads to a surface polishing. The current efficiency is approximately 100%. Only a weak and temporary oxygen evolution was detected at 25 A/cm2.</description><subject>anodic cobalt dissolution</subject><subject>Anodic dissolution</subject><subject>Cobalt</subject><subject>Crystallography</subject><subject>Density</subject><subject>Dissolution</subject><subject>electrochemical machining</subject><subject>High current</subject><subject>in-operando microscopy</subject><subject>Orientation</subject><subject>Sodium nitrates</subject><subject>surface texture</subject><subject>Texture</subject><issn>0947-5117</issn><issn>1521-4176</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2015</creationdate><recordtype>article</recordtype><recordid>eNpdkEtLxDAUhYMoOD62rgNu3FRz82yWw6Cj4mvhA1chbVPN2DZjk6L-ezuMzMLV5cJ3DocPoSMgp0AIPWttGU4pAU6UZPkWmoCgkHFQchtNiOYqEwBqF-3FuCAEQDM-Qa_TLlS-xJWPMTRD8qHDocZlKGyTsO-w_RxcGCKOIza0uPOpt8nhDWwTfvdv77gc-t51CVeuiz55Fw_QTm2b6A7_7j56ujh_nF1mN_fzq9n0JisZ13lmORUu50o5ULzQQguqKlVracsSnCgqSlUtCglO11Q5x3nOZV2rohKcaJazfXSy7l32Ydwak2l9LF3T2G413IAiRGsuOYzo8T90EYa-G9cZkDnnTI_yRkqvqS_fuB-z7H1r-x8DxKw0m5Vms9Fsbqez-803ZrN11sfkvjdZ238YqZgS5uVubub58wO9fbk2jP0CjuqCvw</recordid><startdate>201506</startdate><enddate>201506</enddate><creator>Schneider, M.</creator><creator>Schubert, N.</creator><creator>Höhn, S.</creator><creator>Michaelis, A.</creator><general>Blackwell Publishing Ltd</general><general>Wiley Subscription Services, Inc</general><scope>BSCLL</scope><scope>7SE</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>201506</creationdate><title>Anodic dissolution of cobalt in aqueous sodium nitrate solution at high current densities</title><author>Schneider, M. ; Schubert, N. ; Höhn, S. ; Michaelis, A.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3498-a425e8477e174b959527d7f96acc1e5bd227f5b61e9f27ee44846ff7bd5409383</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2015</creationdate><topic>anodic cobalt dissolution</topic><topic>Anodic dissolution</topic><topic>Cobalt</topic><topic>Crystallography</topic><topic>Density</topic><topic>Dissolution</topic><topic>electrochemical machining</topic><topic>High current</topic><topic>in-operando microscopy</topic><topic>Orientation</topic><topic>Sodium nitrates</topic><topic>surface texture</topic><topic>Texture</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Schneider, M.</creatorcontrib><creatorcontrib>Schubert, N.</creatorcontrib><creatorcontrib>Höhn, S.</creatorcontrib><creatorcontrib>Michaelis, A.</creatorcontrib><collection>Istex</collection><collection>Corrosion Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Materials and corrosion</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Schneider, M.</au><au>Schubert, N.</au><au>Höhn, S.</au><au>Michaelis, A.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Anodic dissolution of cobalt in aqueous sodium nitrate solution at high current densities</atitle><jtitle>Materials and corrosion</jtitle><addtitle>Materials and Corrosion</addtitle><date>2015-06</date><risdate>2015</risdate><volume>66</volume><issue>6</issue><spage>549</spage><epage>556</epage><pages>549-556</pages><issn>0947-5117</issn><eissn>1521-4176</eissn><abstract>The present work focuses on the anodic dissolution of cobalt and the surface texture development in 2.9 mol/L sodium nitrate solution under current controlled conditions at 25 and 30 A/cm2. Before the electrochemical experiments the crystallographic orientation of the samples was investigated by EBSD. The anodic behavior of cobalt as well as the surface topography was microscopically observed using a special electrochemical through flow cell in‐operando during the current controlled dissolution. The experiments were completed by SEM/EDX‐analysis. The authors evidence that the dissolution process at high current densities is independent of the crystallographic orientation of the sample and leads to a surface polishing. The current efficiency is approximately 100%. Only a weak and temporary oxygen evolution was detected at 25 A/cm2.</abstract><cop>Weinheim</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1002/maco.201407638</doi><tpages>8</tpages></addata></record> |
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| language | eng |
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| source | Wiley Online Library Journals Frontfile Complete |
| subjects | anodic cobalt dissolution Anodic dissolution Cobalt Crystallography Density Dissolution electrochemical machining High current in-operando microscopy Orientation Sodium nitrates surface texture Texture |
| title | Anodic dissolution of cobalt in aqueous sodium nitrate solution at high current densities |
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