{"id":722,"date":"2008-02-09T19:56:28","date_gmt":"2008-02-10T00:56:28","guid":{"rendered":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/?post_type=wm_projects&#038;p=722"},"modified":"2018-03-09T21:28:17","modified_gmt":"2018-03-10T02:28:17","slug":"microstructural-design-on-sofcs","status":"publish","type":"wm_projects","link":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/project\/microstructural-design-on-sofcs\/","title":{"rendered":"Microstructural Design of Solid Oxide Fuel Cells"},"content":{"rendered":"<p>The effects of connected porosity and graded Lanthanum Strontium Manganate (LSM) particle-based electrodes are analyzed for an electrolyte-supported, Yttria Stabilized Zirconia (YSZ), SOFC half-cell.\u00a0Optimal microstructure electrodes are proposed by identifying mechanisms that control the transport of oxygen in the porous cathode electrode: 1) transport of oxygen to the cathode-electrolyte interface through the pores; and 2) oxygen replenishment through ion diffusion across the strontium-doped lanthanum manganate (LSM) particulate phase.\u00a0For the selected material parameters, simulations show that a decrease in the spacing of interconnected porosity improves the power delivery.\u00a0Microstructural and electrochemical conditions that lead to <img data-attachment-id=\"724\" data-permalink=\"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/project\/microstructural-design-on-sofcs\/oxygen060\/\" data-orig-file=\"https:\/\/i0.wp.com\/engineering.purdue.edu\/ComputationalMaterials\/wp-content\/uploads\/2018\/03\/oxygen060.jpg?fit=155%2C132&amp;ssl=1\" data-orig-size=\"155,132\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"oxygen distribution of LSM|YSZ SOFC half cell\" data-image-description=\"\" data-image-caption=\"\" data-medium-file=\"https:\/\/i0.wp.com\/engineering.purdue.edu\/ComputationalMaterials\/wp-content\/uploads\/2018\/03\/oxygen060.jpg?fit=155%2C132&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/engineering.purdue.edu\/ComputationalMaterials\/wp-content\/uploads\/2018\/03\/oxygen060.jpg?fit=155%2C132&amp;ssl=1\" loading=\"lazy\" class=\" wp-image-724 alignright\" src=\"https:\/\/i0.wp.com\/engineering.purdue.edu\/ComputationalMaterials\/wp-content\/uploads\/2018\/03\/oxygen060.jpg?resize=374%2C318&#038;ssl=1\" alt=\"\" width=\"374\" height=\"318\" data-recalc-dims=\"1\" \/>self-induced starvation of the cell occurs are identified, including the \u00a0effect of the\u00a0networks that contribute to power generation in the absence of percolating porosity.\u00a0Microstructures where LSM particle density gradients are induced demonstrate that a greater number of cathodic particles near the cathode-electrolyte interface increases the power delivery of the cell by improving pore connectivity and thus reducing polarization losses.<\/p>\n","protected":false},"excerpt":{"rendered":"<p class=\"post-excerpt\" class=\"post-excerpt\">The effects of connected porosity and graded Lanthanum Strontium Manganate (LSM) particle-based&hellip;<\/p>\n","protected":false},"author":1,"featured_media":726,"template":"","meta":{"advanced_seo_description":""},"project_category":[28],"project_tag":[36,30,31,32,68,37],"jetpack_sharing_enabled":true,"jetpack_likes_enabled":true,"_links":{"self":[{"href":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/wp-json\/wp\/v2\/wm_projects\/722"}],"collection":[{"href":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/wp-json\/wp\/v2\/wm_projects"}],"about":[{"href":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/wp-json\/wp\/v2\/types\/wm_projects"}],"author":[{"embeddable":true,"href":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/wp-json\/wp\/v2\/users\/1"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/wp-json\/wp\/v2\/media\/726"}],"wp:attachment":[{"href":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/wp-json\/wp\/v2\/media?parent=722"}],"wp:term":[{"taxonomy":"project_category","embeddable":true,"href":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/wp-json\/wp\/v2\/project_category?post=722"},{"taxonomy":"project_tag","embeddable":true,"href":"https:\/\/engineering.purdue.edu\/ComputationalMaterials\/index.php\/wp-json\/wp\/v2\/project_tag?post=722"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}