{"id":69916,"date":"2025-07-15T12:00:00","date_gmt":"2025-07-15T12:00:00","guid":{"rendered":"https:\/\/www.africa-press.net\/senegal\/politique\/les-grandes-decouvertes-des-eponges-moleculaires"},"modified":"2025-07-16T22:01:04","modified_gmt":"2025-07-16T22:01:04","slug":"les-grandes-decouvertes-des-eponges-moleculaires","status":"publish","type":"post","link":"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/les-grandes-decouvertes-des-eponges-moleculaires","title":{"rendered":"Les Grandes D\u00e9couvertes des \u00c9ponges Mol\u00e9culaires"},"content":{"rendered":"<p><span style=\"color: #ff6600\"><strong>Africa-Press &#8211; Senegal. <\/strong><\/span>Ce n\u2019est encore qu\u2019un prototype de laboratoire, mis au point il y a quelques mois a\u0300 l\u2019universite\u0301 de Californie a\u0300 Berkeley (E\u0301tats-Unis). Mais cette poudre blancha\u0302tre suscite de\u0301ja\u0300 de grands espoirs pour aider les industries du ciment ou de l\u2019acier a\u0300 re\u0301duire leurs e\u0301missions de dioxyde de carbone (CO2). Constitue\u0301e d\u2019e\u0301le\u0301ments mine\u0301raux \u2013 des hydrures de zinc \u2013 et de compose\u0301s organiques, elle capture plus de 90% du CO2 avec lequel elle est mise en contact, de manie\u0300re extre\u0302mement spe\u0301cifique et re\u0301versible, a\u0300 des tempe\u0301ratures de\u0301passant 200\u00b0C.<\/p>\n<p><b>\u00ab Plus de 40 publications scientifiques chaque jour \u00bb<\/b><\/p>\n<p>Ses capacite\u0301s d\u2019absorption sont phe\u0301nome\u0301nales: pour une cuille\u0300re a\u0300 soupe de cette poudre cristalline, la surface inte\u0301rieure de contact correspond en effet a\u0300 six terrains de football ! \u00ab Ce mate\u0301riau appartient a\u0300 une nouvelle famille de solides poreux hybrides connue sous le nom de MOF (pour Metal-organic framework). Elle suscite depuis une vingtaine d\u2019anne\u0301es une tre\u0300s intense activite\u0301 de recherche, avec actuellement plus de 40 publications scientifiques chaque jour \u00bb , explique Christian Serre, chercheur CNRS, membre de l\u2019Acade\u0301mie des sciences, qui dirige l\u2019Institut des mate\u0301riaux poreux de Paris.<\/p>\n<p><b>Des mate\u0301riaux \u00ab gruye\u0300re \u00bb a\u0300 l\u2019exceptionnelle porosite\u0301<\/b><\/p>\n<p>Trois e\u0301quipes de chercheurs ont contribue\u0301 tout particulie\u0300rement a\u0300 l\u2019essor des MOF au de\u0301but des anne\u0301es 2000: celles d\u2019Omar Yaghi, alors a\u0300 l\u2019universite\u0301 du Michigan (E\u0301tats-Unis), de Susumu Kitagawa, de l\u2019universite\u0301 de Kyoto (Japon), et de Ge\u0301rard Fe\u0301rey, de l\u2019universite\u0301 de Versailles-Saint-Quentin-en-Yvelines.<\/p>\n<p>Trois potentiels laure\u0301ats du prix Nobel de chimie (he\u0301las, plus pour le Franc\u0327ais de\u0301ce\u0301de\u0301 en 2017), qui ont montre\u0301 chacun a\u0300 leur manie\u0300re comment synthe\u0301tiser ces mate\u0301riaux \u00ab gruye\u0300re \u00bb, et mis en e\u0301vidence leur exceptionnelle porosite\u0301. Cette dernie\u0300re re\u0301sulte de l\u2019assemblage d\u2019ions me\u0301talliques (aluminium, fer, zinc&#8230; ) portant des charges e\u0301lectriques positives avec des compose\u0301s organiques charge\u0301s ne\u0301gativement, constitue\u0301s le plus souvent de carbone, d\u2019hydroge\u0300ne, d\u2019oxyge\u0300ne et d\u2019azote.<\/p>\n<p>\u00ab A\u0300 la manie\u0300re d\u2019un Lego, en jouant sur le nombre et le type d\u2019ions me\u0301talliques ainsi que sur la forme et la taille des entite\u0301s organiques, on peut construire des myriades d\u2019architectures pour moduler les proprie\u0301te\u0301s physico-chimiques \u00ab , pre\u0301cise Christian Serre. Plus de 130.000 structures ont ainsi e\u0301te\u0301 synthe\u0301tise\u0301es a\u0300 ce jour, permettant de pie\u0301ger et parfois me\u0302me de de\u0301composer une varie\u0301te\u0301 de substances telles que le dioxyde de carbone, le formalde\u0301hyde ou les oxydes d\u2019azote. \u00ab Les applications industrielles concernent la de\u0301pollution de l\u2019air, le stockage de gaz, la de\u0301shumidification ou la production d\u2019eau douce \u00bb , se re\u0301jouit Christian Serre.<\/p>\n<p><strong>Pour plus d&rsquo;informations et d&rsquo;analyses sur la <span style=\"color: #ff6600\">Senegal<\/span>, suivez <span style=\"color: #ff6600\">Africa-Press<\/span><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Africa-Press &#8211; Senegal. Ce n\u2019est encore qu\u2019un prototype de laboratoire, mis au point il y a quelques mois a\u0300 l\u2019universite\u0301 de Californie a\u0300 Berkeley (E\u0301tats-Unis). Mais cette poudre blancha\u0302tre suscite de\u0301ja\u0300 de grands espoirs pour aider les industries du ciment ou de l\u2019acier a\u0300 re\u0301duire leurs e\u0301missions de dioxyde de carbone (CO2). Constitue\u0301e d\u2019e\u0301le\u0301ments mine\u0301raux [&hellip;]<\/p>\n","protected":false},"author":82,"featured_media":69915,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[22,10],"tags":[44],"class_list":["post-69916","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-divers","category-toutes-les-actualites","tag-senegal-2"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.1 (Yoast SEO v27.0) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Les Grandes D\u00e9couvertes des \u00c9ponges Mol\u00e9culaires - Senegal<\/title>\n<meta name=\"description\" content=\"Ce n\u2019est encore qu\u2019un prototype de laboratoire, mis au point il y a quelques mois a\u0300 l\u2019universite\u0301 de Californie a\u0300 Berk ...\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/les-grandes-decouvertes-des-eponges-moleculaires\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Les Grandes D\u00e9couvertes des \u00c9ponges Mol\u00e9culaires\" \/>\n<meta property=\"og:description\" content=\"Ce n\u2019est encore qu\u2019un prototype de laboratoire, mis au point il y a quelques mois a\u0300 l\u2019universite\u0301 de Californie a\u0300 Berk ...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/les-grandes-decouvertes-des-eponges-moleculaires\" \/>\n<meta property=\"og:site_name\" content=\"Senegal\" \/>\n<meta property=\"article:published_time\" content=\"2025-07-15T12:00:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-07-16T22:01:04+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/static.africa-press.net\/senegal\/sites\/13\/2025\/07\/sm_1752659648.128032.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1280\" \/>\n\t<meta property=\"og:image:height\" content=\"720\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"cfeditorfr\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"cfeditorfr\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/les-grandes-decouvertes-des-eponges-moleculaires#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/les-grandes-decouvertes-des-eponges-moleculaires\"},\"author\":{\"name\":\"cfeditorfr\",\"@id\":\"https:\/\/www.africa-press.net\/senegal\/#\/schema\/person\/2b1cf3cd81a31e3cd26889ca66d677f1\"},\"headline\":\"Les Grandes D\u00e9couvertes des \u00c9ponges Mol\u00e9culaires\",\"datePublished\":\"2025-07-15T12:00:00+00:00\",\"dateModified\":\"2025-07-16T22:01:04+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/les-grandes-decouvertes-des-eponges-moleculaires\"},\"wordCount\":505,\"commentCount\":0,\"image\":{\"@id\":\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/les-grandes-decouvertes-des-eponges-moleculaires#primaryimage\"},\"thumbnailUrl\":\"https:\/\/static.africa-press.net\/senegal\/sites\/13\/2025\/07\/sm_1752659648.128032.jpg\",\"keywords\":[\"Senegal\"],\"articleSection\":[\"Divers\",\"Toutes les actualit\u00e9s\"],\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/les-grandes-decouvertes-des-eponges-moleculaires#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/les-grandes-decouvertes-des-eponges-moleculaires\",\"url\":\"https:\/\/www.africa-press.net\/senegal\/toutes-les-actualites\/les-grandes-decouvertes-des-eponges-moleculaires\",\"name\":\"Les Grandes D\u00e9couvertes des \u00c9ponges Mol\u00e9culaires - 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