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Paolucci\n                    <jats:italic>et al.<\/jats:italic>\n                    found that these copper ions may move about during the reaction (see the Perspective by Janssens and Vennestrom). Zeolite catalysts generally fix metals in place while the reacting partners flow in and out of their cagelike structures. In this case, though, x-ray absorption spectroscopy suggested that the ammonia was mobilizing the copper ions to pair up as they activated oxygen during the catalytic cycle.\n                  <\/jats:p>\n                  <jats:p>\n                    <jats:italic>Science<\/jats:italic>\n                    , this issue p.\n                    <jats:related-article xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" ext-link-type=\"doi\" issue=\"6354\" page=\"898\" related-article-type=\"in-this-issue\" vol=\"357\" xlink:href=\"10.1126\/science.aan5630\">898<\/jats:related-article>\n                    ; see also p.\n                    <jats:related-article xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" ext-link-type=\"doi\" issue=\"6354\" page=\"866\" related-article-type=\"in-this-issue\" vol=\"357\" xlink:href=\"10.1126\/science.aao2442\">866<\/jats:related-article>\n                  <\/jats:p>","DOI":"10.1126\/science.aan5630","type":"journal-article","created":{"date-parts":[[2017,8,17]],"date-time":"2017-08-17T20:50:23Z","timestamp":1503003023000},"page":"898-903","source":"Crossref","is-referenced-by-count":947,"title":["Dynamic multinuclear sites formed by mobilized copper ions in NO\n                    <i>\n                      <sub>x<\/sub>\n                    <\/i>\n                    selective catalytic reduction"],"prefix":"10.1126","volume":"357","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4506-9306","authenticated-orcid":false,"given":"Christopher","family":"Paolucci","sequence":"first","affiliation":[{"name":"Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, IN 46556, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-5444-0103","authenticated-orcid":false,"given":"Ishant","family":"Khurana","sequence":"additional","affiliation":[{"name":"Charles D. Davidson School of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, IN 47907, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9388-7170","authenticated-orcid":false,"given":"Atish A.","family":"Parekh","sequence":"additional","affiliation":[{"name":"Charles D. Davidson School of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, IN 47907, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2565-5906","authenticated-orcid":false,"given":"Sichi","family":"Li","sequence":"additional","affiliation":[{"name":"Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, IN 46556, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2414-0644","authenticated-orcid":false,"given":"Arthur J.","family":"Shih","sequence":"additional","affiliation":[{"name":"Charles D. Davidson School of Chemical Engineering, Purdue University, 480 Stadium Mall Drive, West Lafayette, IN 47907, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6291-7912","authenticated-orcid":false,"given":"Hui","family":"Li","sequence":"additional","affiliation":[{"name":"Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, IN 46556, USA."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7519-5100","authenticated-orcid":false,"given":"John R.","family":"Di Iorio","sequence":"additional","affiliation":[{"name":"Charles D. 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