{"id":545,"date":"2025-09-29T21:54:19","date_gmt":"2025-09-29T19:54:19","guid":{"rendered":"https:\/\/perso.ens-lyon.fr\/stephan.steinmann\/?p=545"},"modified":"2025-09-29T21:54:19","modified_gmt":"2025-09-29T19:54:19","slug":"where-is-ytterium-in-apatitic-marine-sediments","status":"publish","type":"post","link":"https:\/\/perso.ens-lyon.fr\/stephan.steinmann\/2025\/09\/where-is-ytterium-in-apatitic-marine-sediments\/","title":{"rendered":"Where is Ytterium in apatitic marine sediments?"},"content":{"rendered":"<p>Having figured out where is Cerium, we wanted to know if Yttrium, which is much more abundant in fluoroapatite, is co-located with it or not. In our latest research on lanthanides in fluoroapatite, published in <a href=\"https:\/\/pubs.acs.org\/doi\/10.1021\/acs.chemmater.5c01722\">Chemistry of Materials<\/a>, we demonstrate that Y is <em><strong>not<\/strong><\/em> in the same chemical environment as Ce. There are no Y aggregates detectable by EXAFS. Instead, Y seems to be incorporated in the amorphous coating of the apatite crystals.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-546 size-medium\" src=\"https:\/\/perso.ens-lyon.fr\/stephan.steinmann\/wp-content\/uploads\/2025\/09\/TOC-300x217.jpeg\" alt=\"\" width=\"300\" height=\"217\" srcset=\"https:\/\/perso.ens-lyon.fr\/stephan.steinmann\/wp-content\/uploads\/2025\/09\/TOC-300x217.jpeg 300w, https:\/\/perso.ens-lyon.fr\/stephan.steinmann\/wp-content\/uploads\/2025\/09\/TOC.jpeg 766w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/p>","protected":false},"excerpt":{"rendered":"<p>Having figured out where is Cerium, we wanted to know if Yttrium, which is much more abundant in fluoroapatite, is co-located with it or not. In our latest research on lanthanides in fluoroapatite, published in Chemistry of Materials, we demonstrate that Y is not in the same chemical environment as Ce. There are no Y [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"","_lmt_disable":"","footnotes":""},"categories":[4],"tags":[],"class_list":["post-545","post","type-post","status-publish","format-standard","hentry","category-publications"],"modified_by":"Stephan Steinmann","_links":{"self":[{"href":"https:\/\/perso.ens-lyon.fr\/stephan.steinmann\/wp-json\/wp\/v2\/posts\/545","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/perso.ens-lyon.fr\/stephan.steinmann\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/perso.ens-lyon.fr\/stephan.steinmann\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/perso.ens-lyon.fr\/stephan.steinmann\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/perso.ens-lyon.fr\/stephan.steinmann\/wp-json\/wp\/v2\/comments?post=545"}],"version-history":[{"count":1,"href":"https:\/\/perso.ens-lyon.fr\/stephan.steinmann\/wp-json\/wp\/v2\/posts\/545\/revisions"}],"predecessor-version":[{"id":547,"href":"https:\/\/perso.ens-lyon.fr\/stephan.steinmann\/wp-json\/wp\/v2\/posts\/545\/revisions\/547"}],"wp:attachment":[{"href":"https:\/\/perso.ens-lyon.fr\/stephan.steinmann\/wp-json\/wp\/v2\/media?parent=545"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/perso.ens-lyon.fr\/stephan.steinmann\/wp-json\/wp\/v2\/categories?post=545"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/perso.ens-lyon.fr\/stephan.steinmann\/wp-json\/wp\/v2\/tags?post=545"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}