01726nas a2200229   4500008004100000022001400041245009900055210006900154260007300223300001200296490000800308520090000316653001301216653002101229653001401250653002001264653001301284100002001297700002501317700002901342856012501371       2008                        eng d  a1387-181100aIncorporation of zirconium in medium-pore aluminophosphate molecular sieves with AEL framework0 aIncorporation of zirconium in mediumpore aluminophosphate molecu  aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcFEB  a223-2290 v1083 a<p>Zirconium incorporated alurninophosphate molecular sieves ZrAPO-11 was synthesized by hydrothermal method. The samples were characterized by X-ray diffraction (XRD), scanning electron microscopy, thermogravimetric/differential thermal analysis (TGA/DTA), diffuse reflectance UV-visible spectroscopy, magic-angle spinning nuclear magnetic resonance (MAS NMR) spectroscopy (P-31 and Al-27). The acidity of the materials were determined by temperature programmed desorption (TPD) of ammonia. X-ray diffraction and scanning electron microscopy reveals formation of crystalline material in pure phase. Thermal analysis shows higher template content in zirconium containing samples than the corresponding AlPOs. MAS NMR suggests incorporation of zirconium in the framework. TPD reveals that the ZrAPO-11 samples were of higher acidity than AIPO(4)-11 (c) 2007 Elsevier Inc. All rights reserved.</p>10aAlPO4-1110aAluminophosphate10acatalysis10aMolecular sieve10aZrAPO-111 aGanguli, J., N.1 aChakrabortty, Dhruba1 aSatyanarayana, C., V. V.  uhttps://library.ncl.res.in/content/incorporation-zirconium-medium-pore-aluminophosphate-molecular-sieves-ael-framework-001822nas a2200229   4500008004100000022001400041245009900055210006900154260007300223300001000296490000800306520100300314653000801317653002101325653001401346653002001360653001301380100002501393700002001418700002901438856012501467       2011                        eng d  a1387-181100aIncorporation of zirconium in medium-pore aluminophosphate molecular sieves with AFO framework0 aIncorporation of zirconium in mediumpore aluminophosphate molecu  aPO BOX 211, 1000 AE AMSTERDAM, NETHERLANDSbELSEVIER SCIENCE BVcJAN  a65-710 v1373 a<p>Zirconium substituted medium pore microporous aluminophosphate molecular sieve ZrAPO-41 was prepared by hydrothermal synthesis under autogenous pressure The formation of the pure phase was confirmed by powder X-ray diffraction (XRD) and scanning electron microscopy (SEM)The thermal behaviour of the material was investigated by carrying out thermogravimetric/differential thermal analysis (TGA/DTA) The zirconium environment was studied by magic-angle spinning nuclear magnetic resonance (MAS NMR) spectroscopy which suggests incorporation of zirconium into the framework UV-Visible diffuse reflectance study also supports the claim The temperature programmed desorption (TPD) of ammonia reveals that the acidity of ZrAPO 41 samples is higher than that of pure AlPO4-41 The catalytic activity of the samples was investigated through phenol hydroxylation reaction The result show hi E her catalytic activity for ZrAPO-41 samples compared to AlPO4-41 (C) 2010 Elsevier Inc All rights reserved</p>10aAFO10aAluminophosphate10acatalysis10aMolecular sieve10aZrAPO 411 aChakrabortty, Dhruba1 aGanguli, J., N.1 aSatyanarayana, C., V. V.  uhttps://library.ncl.res.in/content/incorporation-zirconium-medium-pore-aluminophosphate-molecular-sieves-afo-framework-0