{"id":35673,"date":"2024-04-18T14:36:25","date_gmt":"2024-04-18T12:36:25","guid":{"rendered":"https:\/\/comet.technology\/?p=35673"},"modified":"2024-04-18T14:37:29","modified_gmt":"2024-04-18T12:37:29","slug":"desenvolupament-i-conformacio-de-materials-nanoporosos-per-a-dac","status":"publish","type":"post","link":"https:\/\/comet.technology\/ca\/2024\/04\/18\/desenvolupament-i-conformacio-de-materials-nanoporosos-per-a-dac\/","title":{"rendered":"Desenvolupament i conformaci\u00f3 de materials nanoporosos per a DAC"},"content":{"rendered":"\n<p><\/p>\n\n<p>La recerca d&#8217;adsorbents que puguin eliminar selectivament el CO<sub>2<\/sub> de l&#8217;aire abasta una \u00e0mplia gamma de materials amb diferent qu\u00edmica superficial. Estem desenvolupant s\u00f2lids nanoporosos per a aix\u00f2, on les superf\u00edcies internes molt elevades es poden explotar i les interaccions es poden adaptar f\u00e0cilment. Al llit del contactor, amb un alt flux d&#8217;aire d&#8217;entrada a trav\u00e9s dels mon\u00f2lits, es requereix una bona absorci\u00f3 d&#8217;equilibri on el nivell de CO<sub>2<\/sub> nom\u00e9s \u00e9s de 420 ppm. A m\u00e9s, s&#8217;han de complir altres criteris importants en aquest llit. Aquests inclouen una cin\u00e8tica r\u00e0pida de l&#8217;absorci\u00f3 de CO<sub>2<\/sub> i una f\u00e0cil desorci\u00f3 a temperatures moderades i, a m\u00e9s, l&#8217;absorci\u00f3 no s&#8217;ha de veure massa fortament afectada per la pres\u00e8ncia d&#8217;una mica d&#8217;humitat en el corrent d&#8217;aire. Aquests requisits estrictes, que a SOLDAC comprovem que es poden complir, restringeixen el nombre de materials adequats a alguns candidats clau. A m\u00e9s, un cop capturat el CO<sub>2<\/sub>, hi ha la necessitat de concentrar-lo m\u00e9s en els llits posteriors.<\/p>\n\n<p><\/p>\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" src=\"https:\/\/soldac-project.eu\/wp-content\/uploads\/sites\/25\/2024\/04\/Fig.-1-Representation-of-MOF-structure-and-powdered-nanoporo-1024x420.jpg\" alt=\"\" class=\"wp-image-30981\"\/><figcaption class=\"wp-element-caption\">Fig. 1 Representaci\u00f3 de l&#8217;estructura MOF i del material nanopor\u00f3s en pols<\/figcaption><\/figure>\n\n<p><\/p>\n\n<p>Despr\u00e9s d&#8217;una selecci\u00f3 acurada de materials nanoporosos prometedors per al proc\u00e9s global, inclosos els marcs org\u00e0nics met\u00e0l\u00b7lics (MOF) i les zeolites inorg\u00e0niques, el seg\u00fcent pas \u00e9s fabricar aquests materials en les formes adequades al seu paper a la unitat DAC. Aix\u00f2 implica el rentat de pols microcristal\u00b7lins amb bona consist\u00e8ncia sobre un suport mon\u00f2lit o donar forma als materials en pols en pellets mitjan\u00e7ant additius aglutinants. Aleshores, els pellets es poden utilitzar per a llits d&#8217;adsorci\u00f3, on no acumularan una contrapressi\u00f3 apreciable quan els gasos hi passen. En cada cas, el nostre flux de treball ha de confirmar que els materials conserven les seves propietats adsorbents despr\u00e9s de la seva aplicaci\u00f3 com a recobriments o en forma de pellets.<\/p>\n\n<p><\/p>\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" src=\"https:\/\/soldac-project.eu\/wp-content\/uploads\/sites\/25\/2024\/04\/Fig.-2-Monoliths-for-coating-nanoporous-materials-1024x573.jpg\" alt=\"\" class=\"wp-image-30984\"\/><figcaption class=\"wp-element-caption\">Fig. 2 Mon\u00f2lits per revestir materials nanoporosos; Material nanopor\u00f3s en pols (MOF\/Zeolita) en forma de pellets<\/figcaption><\/figure>\n\n<p><\/p>\n\n<p><em>Escrit per Harpreet Kaur i Paul Wright, <a href=\"https:\/\/wrightgroup.wp.st-andrews.ac.uk\/\" target=\"_blank\" rel=\"noopener\">St Andrews University<\/a><\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>La recerca d&#8217;adsorbents que puguin eliminar selectivament el CO2 de l&#8217;aire abasta una \u00e0mplia gamma de materials amb diferent qu\u00edmica superficial. Estem desenvolupant s\u00f2lids nanoporosos per a aix\u00f2, on les superf\u00edcies internes molt elevades es poden explotar i les interaccions es poden adaptar f\u00e0cilment. Al llit del contactor, amb un alt flux d&#8217;aire d&#8217;entrada a [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":35680,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[742],"tags":[],"class_list":["post-35673","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-soldac-ca"],"acf":[],"_links":{"self":[{"href":"https:\/\/comet.technology\/ca\/wp-json\/wp\/v2\/posts\/35673","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/comet.technology\/ca\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/comet.technology\/ca\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/comet.technology\/ca\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/comet.technology\/ca\/wp-json\/wp\/v2\/comments?post=35673"}],"version-history":[{"count":3,"href":"https:\/\/comet.technology\/ca\/wp-json\/wp\/v2\/posts\/35673\/revisions"}],"predecessor-version":[{"id":35676,"href":"https:\/\/comet.technology\/ca\/wp-json\/wp\/v2\/posts\/35673\/revisions\/35676"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/comet.technology\/ca\/wp-json\/wp\/v2\/media\/35680"}],"wp:attachment":[{"href":"https:\/\/comet.technology\/ca\/wp-json\/wp\/v2\/media?parent=35673"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/comet.technology\/ca\/wp-json\/wp\/v2\/categories?post=35673"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/comet.technology\/ca\/wp-json\/wp\/v2\/tags?post=35673"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}