01355nas a2200181   4500008004100000022001400041245011900055210006900174260011500243300001200358490000700370520059000377653002200967653002000989653002201009100002001031856012201051       2006                        eng d  a0019-452200aPromoter induced rapid synthesis of AlPO4-5 molecular sieve in non-aqueous media using hexamethyleneimine template0 aPromoter induced rapid synthesis of AlPO45 molecular sieve in no  a92 ACHARYA PRAFULLA CHANDRA RD ATTN:DR INDRAJIT KAR/EXEC SEC, CALCUTTA 700009, INDIAbINDIAN CHEMICAL SOCcJUL  a692-6960 v833 a<p>AlPO4-5 have been synthesized from non-aqueous media using hexamethyleneimine template in presence of sodium ions. The results show that the sodium catalyses the nucleation and crystallization process of the formation of AlPO4-5 molecular sieve. The material synthesized was characterized by XRD, SEM, carbon and nitrogen analysis, TG/DTA, FT-IR, Al-27 and P-31 MASNMR. The results show that the samples are highly crystalline. The presence of octahedral and tetrahedral sites are observed in 27 At MASNMR, P-31 MASNMR gives only a single peak for tetrahedral phosphorous atoms.</p>10aaluminophosphates10aMolecular sieve10anon-aqueous media1 aVenkatathri, N.  uhttps://library.ncl.res.in/content/promoter-induced-rapid-synthesis-alpo4-5-molecular-sieve-non-aqueous-media-using-001941nas a2200169   4500008004100000022001400041245008400055210006900139260011500208300001200323490000700335520125300342653002101595653002001616100002001636856011501656       2006                        eng d  a0019-452200aSynthesis and characterization of AlPO4-5RT molecular sieve at room temperature0 aSynthesis and characterization of AlPO45RT molecular sieve at ro  a92 ACHARYA PRAFULLA CHANDRA RD ATTN:DR INDRAJIT KAR/EXEC SEC, CALCUTTA 700009, INDIAbINDIAN CHEMICAL SOCcJUL  a697-7010 v833 a<p>Aluminophosphate molecular sieve AlPO4-5RT (AlPO4-5, prepared at room temperature) have been synthesized using hexamethyleneimine template at room temperature for the first time. Gel composition Al2O3 : P2O5 : 1.16HEM : 45H(2)O aging for 12 h at room temperature, and in 24 h, 473 K are the standard reaction conditions for synthesis of AlPO4-5. Studies on above gel composition at room temperature shows the presence of AlPO4-5 crystals. Both the aluminophosphates have been characterized by elemental analysis, XRD, SEM, FT-IR, TG/DTA, and C-13, Al-27 and P-31 MASNMR techniques. XRD analysis of AlPO4-5RT shows that the presence of low intensed pseudobochmite sample. SEM shows the morphology nanosized crystals along with platelets. TG/DTA analysis reveals the presence of maximum five stages elimination of templates. Carbon and nitrogen analysis shows that the presence of four template molecules per unitcell. C-13 MASNMR analysis shows the interaction of template with structure of the framework. Al-27 MASNMR shows the presence of small amount of octahedral co-ordination besides the rest are in tetrahedral co-ordination. P-31 MASNMR shows the presence of two environmentally different tetrahedrally co-ordinated phosphorous atoms.</p>10aAluminophosphate10aMolecular sieve1 aVenkatathri, N.  uhttps://library.ncl.res.in/content/synthesis-and-characterization-alpo4-5rt-molecular-sieve-room-temperature-001737nas a2200181   4500008004100000022001400041245008600055210006900141260011500210300001200325490000700337520102700344653002001371653002001391653001201411100002001423856011201443       2006                        eng d  a0019-452200aSynthesis of high alumina ZSM-5 molecular sieve with ethylene diamine as template0 aSynthesis of high alumina ZSM5 molecular sieve with ethylene dia  a92 ACHARYA PRAFULLA CHANDRA RD ATTN:DR INDRAJIT KAR/EXEC SEC, CALCUTTA 700009, INDIAbINDIAN CHEMICAL SOCcJUL  a686-6910 v833 a<p>Attempts were made to investigate compositional constraints in the synthesis of pentasill molecular sieves, including aluminosilicate zeolites using ethylene diamine (C2DN) template, from the gel composition 1.85Na(2)O : aAl(2)O(3) : 15.2SiO(2) : 592H(2)O : 19.7C(2)DN in the temperature 177 degrees C for ten days. When a = 0.25 the product was ZSM-5 and then a = 1 the product was ZSM-35 and in between compositions the mixture of two were obtained. Reduce the time of crystallization time to 5 days give nanocrystalline material. XRD and FT-IR spectra in framework region of ZSM-5 synthesized using ethylene diamine template and without template are having similar pattern, however the intensity varies. Scanning electron microscopic picture of the both are varies. The structural stability of the zeolite ZSM-5 synthesized using no template was also found to be lower as compared with that for the ZSM-5 synthesized using ethylene diamine template. These differences. may result from the occluded excess sodium.</p>10aethylenediamine10aMolecular sieve10azeolite1 aVenkatathri, N.  uhttps://library.ncl.res.in/content/synthesis-high-alumina-zsm-5-molecular-sieve-ethylene-diamine-template-001726nas 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