Influence of various sol-gel parameters on the physico‐chemical properties of sulfuric acid chelated zirconia aerogels dried at ambient pressure

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buir.contributor.authorPatil, Bhushan
dc.citation.epage2000025-6en_US
dc.citation.issueNumber1en_US
dc.citation.spage2000025-1en_US
dc.citation.volumeNumber393en_US
dc.contributor.authorBangi, U. K. H.
dc.contributor.authorPatil, Bhushan
dc.contributor.authorPawar, R. C.
dc.contributor.authorPark, H.-H.
dc.date.accessioned2021-03-05T09:10:01Z
dc.date.available2021-03-05T09:10:01Z
dc.date.issued2020
dc.departmentInstitute of Materials Science and Nanotechnology (UNAM)en_US
dc.departmentNanotechnology Research Center (NANOTAM)en_US
dc.description.abstractThis work represents the influence of various sol–gel parameters on the physico‐chemical properties of sulfuric acid chelated zirconia aerogels dried at ambient pressure. The sol–gel parameters such as concentrations of precursor, chelating agent and catalyst are found to be the dominant factors which influence the physical, chemical and textural properties of the aerogels. Therefore, the influence of concentration of Zr precursor, ZrPr:H2SO4 molar ratio and ZrPr:H2O molar ratio on these properties of zirconia aerogels is studied. Zirconia lacogels are formed by the hydrolysis and condensation of zirconium n‐propoxide in n‐propanol chelated with sulfuric acid (18.4 M) and catalyzed with deionized water. Aerogels are obtained by subsequent solvent exchange, silylation, washing and ambient pressure drying. The physico‐chemical properties of as synthesized zirconia aerogels are carried out using FESEM, EDS, BET analysis and FTIR spectroscopy. The good quality zirconia aerogels are obtained using the molar ratio of ZrPr:PrOH:H2SO4:H2O:HMDZ::1:2.93:1.18:1.77:0.59. They possess the density of 0.54 g cm‐3, BET surface area of 328 m2 g‐1 and micropore volume of 0.028 cm3 g‐1. These aerogels can be applied as heterogeneous catalysts in many fields.en_US
dc.embargo.release2021-10-01
dc.identifier.doi10.1002/masy.202000025en_US
dc.identifier.issn1022-1360
dc.identifier.urihttp://hdl.handle.net/11693/75828
dc.language.isoEnglishen_US
dc.publisherWiley-VCH Verlagen_US
dc.relation.isversionofhttps://dx.doi.org/10.1002/masy.202000025en_US
dc.source.titleMacromolecular Symposiaen_US
dc.subjectAmbient pressure dryingen_US
dc.subjectBET surface areaen_US
dc.subjectChelating agenten_US
dc.subjectSol–gelen_US
dc.subjectZirconia aerogelsen_US
dc.titleInfluence of various sol-gel parameters on the physico‐chemical properties of sulfuric acid chelated zirconia aerogels dried at ambient pressureen_US
dc.typeArticleen_US
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