{"id":3332,"date":"2023-02-08T09:43:17","date_gmt":"2023-02-08T14:43:17","guid":{"rendered":"https:\/\/cqfa.quebec\/?p=3332"},"modified":"2023-02-08T09:52:11","modified_gmt":"2023-02-08T14:52:11","slug":"synthesis-of-vacancy-rich-titania-particles-suitable-for-the-additive-manufacturing-of-ceramics","status":"publish","type":"post","link":"https:\/\/cqfa.quebec\/en\/synthesis-of-vacancy-rich-titania-particles-suitable-for-the-additive-manufacturing-of-ceramics\/","title":{"rendered":"Synthesis of vacancy-rich titania particles suitable for the additive manufacturing of ceramics"},"content":{"rendered":"<p><em>A. Benavides-Guerrero, J.; Gerlein, L.F.; Trudeau, C.; Banerjee, D.; Guo, X.; G. Cloutier, S. (2022). Synthesis of vacancy-rich titania particles suitable for the additive manufacturing of ceramics. Nature, Scientific Reports,\u00a0<span class=\"u-visually-hidden\">volume<\/span> 12, 15441\u00a0(2022).<\/em><\/p>\n<p>&nbsp;<\/p>\n<p>In the last decades, titania (or TiO<sub>2<\/sub>) particles played a crucial role in the development of photo-catalysis and better environmentally-friendly energy-harvesting techniques. In this work, we engineer a new generation of TiO<sub>2<\/sub>\u00a0particles rich in oxygen vacancies using a modified sol\u2013gel synthesis. By design, these vacancy-rich particles efficiently absorb visible light to allow carefully-controlled light-induced conversion to the anatase or rutile crystalline phases. FTIR and micro-Raman spectroscopy reveal the formation of oxygen vacancies during conversion and explain this unique laser-assisted crystallization mechanism. We achieve low-energy laser-assisted crystallization in ambient environment using a modified filament 3D printer equipped with a low-power laser printhead. Since the established high-temperature treatment necessary to convert to crystalline TiO<sub>2<\/sub>\u00a0is ill-suited to additive manufacturing platforms, this work removes a major fundamental hurdle and opens whole new vistas of possibilities towards the additive manufacturing of ceramics, including carefully-engineered crystalline TiO<sub>2<\/sub>\u00a0substrates with potential applications for new and better photo-catalysis, fuel cells and energy-harvesting technologies.<\/p>\n<p>&nbsp;<\/p>\n<p class=\"link-btn-style btn-yellow\"><a href=\"https:\/\/www.nature.com\/articles\/s41598-022-19824-y\" target=\"_blank\" rel=\"noopener\">Read the publication<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A. Benavides-Guerrero, J.; Gerlein, L.F.; Trudeau, C.; Banerjee, D.; Guo, X.; G. Cloutier, S. (2022). Synthesis of vacancy-rich titania particles suitable for the additive manufacturing of ceramics. Nature, Scientific Reports,\u00a0volume [&hellip;]<\/p>\n","protected":false},"author":80,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"footnotes":""},"categories":[43],"tags":[],"class_list":["post-3332","post","type-post","status-publish","format-standard","hentry","category-publications-academiques-quebecoises"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.3 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Synthesis of vacancy-rich titania particles suitable for the additive manufacturing of ceramics - CQFA - Carrefour qu\u00e9b\u00e9cois de la fabrication additive<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/cqfa.quebec\/en\/synthesis-of-vacancy-rich-titania-particles-suitable-for-the-additive-manufacturing-of-ceramics\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Synthesis of vacancy-rich titania particles suitable for the additive manufacturing of ceramics - CQFA - Carrefour qu\u00e9b\u00e9cois de la fabrication additive\" \/>\n<meta property=\"og:description\" content=\"A. Benavides-Guerrero, J.; Gerlein, L.F.; Trudeau, C.; Banerjee, D.; Guo, X.; G. Cloutier, S. (2022). Synthesis of vacancy-rich titania particles suitable for the additive manufacturing of ceramics. 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Benavides-Guerrero, J.; Gerlein, L.F.; Trudeau, C.; Banerjee, D.; Guo, X.; G. Cloutier, S. (2022). Synthesis of vacancy-rich titania particles suitable for the additive manufacturing of ceramics. 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