{"id":21,"date":"2026-10-02T11:49:51","date_gmt":"2026-10-02T10:49:51","guid":{"rendered":"https:\/\/mapdow.com\/?p=21"},"modified":"2026-10-02T11:49:51","modified_gmt":"2026-10-02T10:49:51","slug":"catalytic-decomposition-of-n%e2%82%82o-green-chemistry","status":"publish","type":"post","link":"https:\/\/mapdow.com\/?p=21","title":{"rendered":"Catalytic Decomposition of N\u2082O: Green Chemistry"},"content":{"rendered":"<p>Catalytic decomposition converts N\u2082O directly to N\u2082 and O\u2082 \u2014 a thermodynamically favorable but kinetically hindered reaction. Developing efficient catalysts for this transformation is a key green chemistry challenge, applicable both to industrial N\u2082O abatement and to using N\u2082O as a mild oxidant in synthesis.<\/p>\n<h2>Thermodynamics and Kinetics<\/h2>\n<p>The decomposition reaction N\u2082O \u2192 N\u2082 + \u00bdO\u2082 is exothermic (\u0394H = \u221282.0 kJ\/mol) and spontaneous at all temperatures (\u0394G negative above approximately \u221293\u00b0C). However, the homogeneous uncatalyzed reaction is negligibly slow at temperatures below 600\u00b0C.<\/p>\n<pre>2N\u2082O \u2192 2N\u2082 + O\u2082  \u0394H = \u2212164 kJ\/mol<\/pre>\n<div class=\"chem-data-box\">\n<div class=\"label\">Reaction Enthalpy<\/div>\n<div class=\"value\">\u0394H = \u221282.0 kJ\/mol N\u2082O<\/div>\n<\/div>\n<h2>Catalyst Systems<\/h2>\n<p>Iron-exchanged zeolites (Fe-ZSM-5, Fe-Beta) are among the most active and selective catalysts, capable of operating at 300\u2013500\u00b0C. Perovskite-type oxides (LaCoO\u2083, LaMnO\u2083) offer good activity at 250\u2013400\u00b0C. Rhodium and ruthenium catalysts on oxide supports are active below 200\u00b0C.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Catalytic decomposition converts N\u2082O directly to N\u2082 and O\u2082 \u2014 a thermodynamically favorable but kinetically hindered reaction. Developing efficient catalysts for this transformation is a\u2026<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"class_list":["post-21","post","type-post","status-publish","format-standard","hentry","category-chemistry"],"_links":{"self":[{"href":"https:\/\/mapdow.com\/index.php?rest_route=\/wp\/v2\/posts\/21","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mapdow.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mapdow.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mapdow.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mapdow.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=21"}],"version-history":[{"count":0,"href":"https:\/\/mapdow.com\/index.php?rest_route=\/wp\/v2\/posts\/21\/revisions"}],"wp:attachment":[{"href":"https:\/\/mapdow.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=21"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mapdow.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=21"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mapdow.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=21"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}