{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,30]],"date-time":"2026-06-30T21:39:25Z","timestamp":1782855565916,"version":"3.54.5"},"reference-count":39,"publisher":"Royal Society of Chemistry (RSC)","content-domain":{"domain":["rsc.org"],"crossmark-restriction":true},"short-container-title":["Faraday Discuss."],"abstract":"<p>\n                    The possible link between oxygen surface exchange rate and bulk oxygen anion diffusivity in mixed ionic and electronic conducting oxides is a topic of great interest and debate. While a large body of experimental evidence and theoretical analyses support a link, observed differences between bulk and surface composition of these materials are hard to reconcile with this observation. This is further compounded by potential problems with simultaneous measurement of both parameters. Here we utilize separate techniques,\n                    <italic>in situ<\/italic>\n                    neutron diffraction and pulsed isotopic surface exchange, to examine bulk ion mobility and surface oxygen exchange rates of three Ruddlesden\u2013Popper phases, general form A\n                    <sub>n\u22121<\/sub>\n                    A\u20322B\n                    <sub>n<\/sub>\n                    O\n                    <sub>3n+1<\/sub>\n                    , A\n                    <sub>n\u22121<\/sub>\n                    A\u20322B\n                    <sub>n<\/sub>\n                    X\n                    <sub>3n+1<\/sub>\n                    ; LaSrCo\n                    <sub>0.5<\/sub>\n                    Fe\n                    <sub>0.5<\/sub>\n                    O\n                    <sub>4\u2212\u03b4<\/sub>\n                    (\n                    <italic>n<\/italic>\n                    = 1), La\n                    <sub>0.3<\/sub>\n                    Sr\n                    <sub>2.7<\/sub>\n                    CoFeO\n                    <sub>7\u2212\u03b4<\/sub>\n                    (\n                    <italic>n<\/italic>\n                    = 2) and LaSr\n                    <sub>3<\/sub>\n                    Co\n                    <sub>1.5<\/sub>\n                    Fe\n                    <sub>1.5<\/sub>\n                    O\n                    <sub>10\u2212\u03b4<\/sub>\n                    (\n                    <italic>n<\/italic>\n                    = 3). These measurements are complemented by surface composition determination\n                    <italic>via<\/italic>\n                    high sensitivity-low energy ion scattering. We observe a correlation between bulk ion mobility and surface exchange rate between materials. The surface exchange rates vary by more than one order of magnitude with high anion mobility in the bulk of an oxygen vacancy-rich\n                    <italic>n<\/italic>\n                    = 2 Ruddlesden\u2013Popper material correlating with rapid oxygen exchange. This is in contrast with the similar surface exchange rates which we may expect due to similar surface compositions across all three samples. We conclude that experimental limitations lead to inherent convolution of surface and bulk rates, and that surface exchange steps are not likely to be rate limiting in oxygen incorporation.\n                  <\/p>","DOI":"10.1039\/c5fd00014a","type":"journal-article","created":{"date-parts":[[2015,3,2]],"date-time":"2015-03-02T04:00:30Z","timestamp":1425268830000},"page":"113-127","update-policy":"https:\/\/doi.org\/10.1039\/rsc_crossmark_policy","source":"Crossref","is-referenced-by-count":17,"title":["Is the surface oxygen exchange rate linked to bulk ion diffusivity in mixed conducting Ruddlesden\u2013Popper phases?"],"prefix":"10.1039","volume":"182","author":[{"given":"Alex C.","family":"Tomkiewicz","sequence":"first","affiliation":[{"name":"Department of Chemical and Biomolecular Engineering"},{"name":"Lehigh University"},{"name":"Bethlehem"},{"name":"USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mazin A.","family":"Tamimi","sequence":"additional","affiliation":[{"name":"Department of Chemical and Biomolecular Engineering"},{"name":"Lehigh University"},{"name":"Bethlehem"},{"name":"USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ashfia","family":"Huq","sequence":"additional","affiliation":[{"name":"Spallation Neutron Source"},{"name":"Oak Ridge National Laboratory"},{"name":"Oak Ridge"},{"name":"USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Steven","family":"McIntosh","sequence":"additional","affiliation":[{"name":"Department of Chemical and Biomolecular Engineering"},{"name":"Lehigh University"},{"name":"Bethlehem"},{"name":"USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"292","published-online":{"date-parts":[[2015]]},"reference":[{"key":"C5FD00014A-(cit1)\/*[position()=1]","doi-asserted-by":"crossref","first-page":"197","DOI":"10.1016\/S0167-2738(98)00152-0","volume":"112","author":"Maier","year":"1998","journal-title":"Solid State Ionics"},{"key":"C5FD00014A-(cit2)\/*[position()=1]","doi-asserted-by":"crossref","first-page":"890","DOI":"10.1039\/b511702j","volume":"8","author":"De Souza","year":"2006","journal-title":"Phys. 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Interface Anal."},{"key":"C5FD00014A-(cit39)\/*[position()=1]","doi-asserted-by":"crossref","first-page":"893","DOI":"10.1016\/j.ssi.2013.09.010","volume":"262","author":"Druce","year":"2014","journal-title":"Solid State Ionics"}],"container-title":["Faraday Discussions"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/pubs.rsc.org\/en\/content\/articlepdf\/2015\/FD\/C5FD00014A","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,6,30]],"date-time":"2026-06-30T20:33:49Z","timestamp":1782851629000},"score":1,"resource":{"primary":{"URL":"https:\/\/pubs.rsc.org\/fd\/article\/479366"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2015]]},"references-count":39,"URL":"https:\/\/doi.org\/10.1039\/c5fd00014a","relation":{},"ISSN":["1359-6640","1364-5498"],"issn-type":[{"value":"1359-6640","type":"print"},{"value":"1364-5498","type":"electronic"}],"subject":[],"published":{"date-parts":[[2015]]},"assertion":[{"value":"This document is Similarity Check deposited","name":"similarity_check","explanation":{"URL":"https:\/\/www.crossref.org\/services\/similarity-check\/"},"group":{"name":"similarity_check","label":"SIMILARITY CHECK"}},{"value":"https:\/\/doi.org\/10.1039\/C5FD90073E","URL":"https:\/\/doi.org\/10.1039\/C5FD90073E","name":"related_article","label":"CrossRef DOI Link to Discussion:","group":{"name":"associated_articles","label":"ASSOCIATED ARTICLES"}},{"value":"https:\/\/doi.org\/10.1039\/C5FD90073E","URL":"https:\/\/doi.org\/10.1039\/C5FD90073E","name":"related_article","label":"CrossRef DOI Link to Discussion:","group":{"name":"associated_articles","label":"ASSOCIATED ARTICLES"}},{"value":"https:\/\/doi.org\/10.1039\/C5FD90073E","URL":"https:\/\/doi.org\/10.1039\/C5FD90073E","name":"related_article","label":"CrossRef DOI Link to Discussion:","group":{"name":"associated_articles","label":"ASSOCIATED ARTICLES"}},{"value":"https:\/\/doi.org\/10.1039\/C5FD90073E","URL":"https:\/\/doi.org\/10.1039\/C5FD90073E","name":"related_article","label":"CrossRef DOI Link to Discussion:","group":{"name":"associated_articles","label":"ASSOCIATED ARTICLES"}},{"value":"https:\/\/doi.org\/10.1039\/C5FD90073E","URL":"https:\/\/doi.org\/10.1039\/C5FD90073E","name":"related_article","label":"CrossRef DOI Link to Discussion:","group":{"name":"associated_articles","label":"ASSOCIATED ARTICLES"}},{"value":"https:\/\/doi.org\/10.1039\/C5FD90073E","URL":"https:\/\/doi.org\/10.1039\/C5FD90073E","name":"related_article","label":"CrossRef DOI Link to Discussion:","group":{"name":"associated_articles","label":"ASSOCIATED ARTICLES"}},{"value":"https:\/\/doi.org\/10.1039\/C5FD90073E","URL":"https:\/\/doi.org\/10.1039\/C5FD90073E","name":"related_article","label":"CrossRef DOI Link to Discussion:","group":{"name":"associated_articles","label":"ASSOCIATED ARTICLES"}},{"value":"https:\/\/doi.org\/10.1039\/C5FD90073E","URL":"https:\/\/doi.org\/10.1039\/C5FD90073E","name":"related_article","label":"CrossRef DOI Link to Discussion:","group":{"name":"associated_articles","label":"ASSOCIATED ARTICLES"}},{"value":"The Royal Society of Chemistry has an exclusive publication licence for this journal","name":"copyright_licence","group":{"name":"copyright_licensing","label":"COPYRIGHT AND LICENSING"}},{"value":"Single-blind","order":2,"name":"peer_review_method","group":{"name":"peer_review_method","label":"PEER REVIEW METHOD"}},{"value":"Received 4 February 2015; Accepted 27 February 2015;  Accepted Manuscript published 2 March 2015;  Advance Article published 24 July 2015;  Version of Record published 10 October 2015","order":1,"name":"history","group":{"name":"publication_history","label":"PUBLICATION HISTORY"}}]}}