{"id":1574,"date":"2018-12-21T11:37:49","date_gmt":"2018-12-21T11:37:49","guid":{"rendered":"http:\/\/www.finden.co.uk\/?p=1574"},"modified":"2019-03-08T15:24:15","modified_gmt":"2019-03-08T15:24:15","slug":"5d-operando-tomographic-diffraction-imaging-of-a-catalyst-bed","status":"publish","type":"post","link":"https:\/\/www.finden.co.uk\/zh\/news\/5d-operando-tomographic-diffraction-imaging-of-a-catalyst-bed\/","title":{"rendered":"5D operando tomographic diffraction imaging of a catalyst bed"},"content":{"rendered":"<p>Our paper on 5D operando tomographic diffraction imaging of a catalyst bed has been published online by <a href=\"https:\/\/www.nature.com\/articles\/s41467-018-07046-8#disqus_thread\" target=\"_blank\" rel=\"noopener noreferrer\">Nature Communications, <b data-test=\"journal-volume\"><span class=\"visually-hidden\">volume<\/span>\u00a09<\/b>, Article\u00a0number:\u00a0<span data-test=\"article-number\">4751<\/span> (<span data-test=\"article-publication-year\">2018<\/span>) <\/a><\/p>\n<p>We report the results from the first 5D tomographic diffraction imaging experiment of a complex Ni\u2013Pd\/CeO<sub>2<\/sub>\u2013ZrO<sub>2<\/sub>\/Al<sub>2<\/sub>O<sub>3<\/sub> catalyst used for methane reforming. This five-dimensional (three spatial, one scattering and one dimension to denote time\/imposed state) approach enabled us to track the chemical evolution of many particles across the catalyst bed and relate these changes to the gas environment that the particles experience. Rietveld analysis of some 2\u2009\u00d7\u200910<sup>6<\/sup> diffraction patterns allowed us to extract heterogeneities in the catalyst from the \u00c5 to the nm and to the \u03bcm scale (3D maps corresponding to unit cell lattice parameters, crystallite sizes and phase distribution maps respectively) under different chemical environments. We are able to capture the evolution of the Ni-containing species and gain a more complete insight into the multiple roles of the CeO<sub>2<\/sub>-ZrO<sub>2<\/sub> promoters and the reasons behind the partial deactivation of the catalyst during partial oxidation of methane.<\/p>\n<p>Read the full article at <a href=\"https:\/\/doi.org\/10.1038\/s41467-018-07046-8\" target=\"_blank\" rel=\"noopener noreferrer\">https:\/\/doi.org\/10.1038\/s41467-018-07046-8<\/a><\/p>\n<p>&nbsp;<\/p>","protected":false},"excerpt":{"rendered":"<p>Our paper on 5D operando tomographic diffraction imaging of a catalyst bed has been published online by Nature Communications, volume\u00a09, Article\u00a0number:\u00a04751 (2018) We report the results from the first 5D tomographic diffraction imaging experiment of a complex Ni\u2013Pd\/CeO2\u2013ZrO2\/Al2O3 catalyst used for methane reforming. This five-dimensional (three spatial, one scattering and one dimension to denote time\/imposed [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[15],"tags":[22,24,23,21,19],"class_list":["post-1574","post","type-post","status-publish","format-standard","hentry","category-news","tag-5d-diffraction-imaging","tag-catalysis","tag-diffraction-imaging","tag-tomography","tag-x-ray"],"_links":{"self":[{"href":"https:\/\/www.finden.co.uk\/zh\/wp-json\/wp\/v2\/posts\/1574","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.finden.co.uk\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.finden.co.uk\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.finden.co.uk\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.finden.co.uk\/zh\/wp-json\/wp\/v2\/comments?post=1574"}],"version-history":[{"count":3,"href":"https:\/\/www.finden.co.uk\/zh\/wp-json\/wp\/v2\/posts\/1574\/revisions"}],"predecessor-version":[{"id":1968,"href":"https:\/\/www.finden.co.uk\/zh\/wp-json\/wp\/v2\/posts\/1574\/revisions\/1968"}],"wp:attachment":[{"href":"https:\/\/www.finden.co.uk\/zh\/wp-json\/wp\/v2\/media?parent=1574"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.finden.co.uk\/zh\/wp-json\/wp\/v2\/categories?post=1574"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.finden.co.uk\/zh\/wp-json\/wp\/v2\/tags?post=1574"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}