{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2024,8,7]],"date-time":"2024-08-07T16:40:09Z","timestamp":1723048809639},"reference-count":8,"publisher":"Walter de Gruyter GmbH","issue":"1","license":[{"start":{"date-parts":[[2009,3,1]],"date-time":"2009-03-01T00:00:00Z","timestamp":1235865600000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/3.0"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2009,3,1]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>Nanostructured hybrid materials containing Al2O3 were synthesized via a sol-gel method through hydrolysis and co-condensation reactions using trimethylsilyl isocyanate (TMSI) as a new silica source in the presence of tetramethoxysilane (TMOS) and three different quantities (10, 20 and 30 wt.%) of aluminum sec-butoxide (Al(OBusec)3 as a modifying agent. The xerogel nanostructured materials are pyrolyzed in nitrogen atmosphere in the temperature range from 400\u00b0C to 1100\u00b0C. The transformation of the xerogel hybrid networks into Al-Si oxycarbonitride materials has been investigated by XRD, FTIR, SEM, AFM, and 29Si MAS-NMR. To the best of our knowledge, the work reported here is the first synthesis of porous di-urethanesils modified with aluminum and one of the few examples of alumosilica oxycarbonitride materials   <jats:inline-formula><jats:alternatives><jats:inline-graphic xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" xlink:href=\"graphic\/s11532-008-0098-0_1.jpg\" \/><\/jats:alternatives><\/jats:inline-formula><\/jats:p>","DOI":"10.2478\/s11532-008-0098-0","type":"journal-article","created":{"date-parts":[[2008,12,22]],"date-time":"2008-12-22T08:33:16Z","timestamp":1229934796000},"page":"42-46","source":"Crossref","is-referenced-by-count":2,"title":["Preparation of nanostructured porous SiO2-Al2O3 oxycarbonitride materials obtained by a new chemical precursor method"],"prefix":"10.2478","volume":"7","author":[{"given":"Yordanka","family":"Ivanova","sequence":"first","affiliation":[{"name":"1Department of Silicate Technology, University of Chemical Technology and Metallurgy, 1756, Sofia, Bulgaria"}]},{"given":"Tsvetelina","family":"Gerganova","sequence":"additional","affiliation":[{"name":"1Department of Silicate Technology, University of Chemical Technology and Metallurgy, 1756, Sofia, Bulgaria"}]},{"given":"M.","family":"Fernandes","sequence":"additional","affiliation":[{"name":"2Ceramic and Glass Engineering Department CICECO, Aveiro University, 3810-193, Aveiro, Portugal"}]},{"given":"Isabel","family":"Salvado","sequence":"additional","affiliation":[{"name":"2Ceramic and Glass Engineering Department CICECO, Aveiro University, 3810-193, Aveiro, Portugal"}]}],"member":"374","reference":[{"key":"ref81","doi-asserted-by":"publisher","first-page":"452","DOI":"10.2478\/BF02479275","article-title":"http dx org","author":"Ivanova","year":"2005","journal-title":"Cent Eur J Chem"},{"key":"ref51","doi-asserted-by":"publisher","first-page":"1425","DOI":"10.1364\/AO.19.001425","article-title":"http dx org","volume":"19","author":"Yoldas","year":"1980","journal-title":"Applied Optics"},{"key":"ref41","doi-asserted-by":"publisher","first-page":"259","DOI":"10.1016\/0079-6786(88)90005-2","article-title":"Solid State http dx org","volume":"18","author":"Livage","year":"1988","journal-title":"Chem"},{"key":"ref101","doi-asserted-by":"publisher","first-page":"1530","DOI":"10.1111\/j.1151-2916.2002.tb00432.x","article-title":"http dx org","volume":"85","author":"Soraru","year":"2002","journal-title":"Am Ceram Soc"},{"key":"ref61","doi-asserted-by":"publisher","first-page":"2530","DOI":"10.1021\/cm0348848","article-title":"http dx org","volume":"16","author":"Goncalves","year":"2004","journal-title":"Chem Mater"},{"key":"ref71","doi-asserted-by":"publisher","first-page":"2827","DOI":"10.1021\/cm990195d","article-title":"http dx org","volume":"11","author":"Gates","year":"1999","journal-title":"Chem Mater"},{"key":"ref21","doi-asserted-by":"publisher","first-page":"515","DOI":"10.1016\/j.tsf.2005.12.080","article-title":"http dx org","author":"Ivanova","year":"2006","journal-title":"Thin Solid Films"},{"key":"ref01","doi-asserted-by":"publisher","first-page":"286","DOI":"10.1016\/S0022-3093(01)00478-1","article-title":"http dx org","author":"Szaniawska","year":"2001","journal-title":"Cryst Solids"}],"container-title":["Open Chemistry"],"original-title":[],"link":[{"URL":"http:\/\/link.springer.com\/content\/pdf\/10.2478\/s11532-008-0098-0.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/www.degruyter.com\/view\/journals\/chem\/7\/1\/article-p42.xml","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/www.degruyter.com\/document\/doi\/10.2478\/s11532-008-0098-0\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2021,4,22]],"date-time":"2021-04-22T14:29:24Z","timestamp":1619101764000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.degruyter.com\/view\/journals\/chem\/7\/1\/article-p42.xml"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2009,3,1]]},"references-count":8,"journal-issue":{"issue":"1"},"URL":"https:\/\/doi.org\/10.2478\/s11532-008-0098-0","relation":{},"ISSN":["2391-5420"],"issn-type":[{"value":"2391-5420","type":"electronic"}],"subject":[],"published":{"date-parts":[[2009,3,1]]}}}