TY - JOUR
T1 - Synthesis of large single crystals of templated Y faujasite
AU - Ferchiche, Samia
AU - Valcheva-Traykova, Maria
AU - Vaughan, David E.W.
AU - Warzywoda, Juliusz
AU - Sacco, Albert
N1 - Funding Information:
The authors acknowledge the financial support of NASA, and thank Teri Lalain and Prof. Karl Mueller (Department of Chemistry, Pennsylvania State University) for the 29 Si NMR spectrum.
PY - 2001/2
Y1 - 2001/2
N2 - Large single crystals of zeolite Y with diameters up to 210-245 μm and Si/Al = 1.71 were synthesized from a reaction mixture (4.76Na2O:1.0Al2O3:3.5SiO2:454H2O:0.6T2O:5TEA) comprising fumed silica, sodium aluminate and the template bis(2-hydroxyethyl)dimethylammonium chloride in an aqueous triethanolamine (TEA) cosolvent. Scanning electron microscopy, optical microscopy and X ray diffraction showed that the particulate products were mixtures of large transparent faujasite octahedral with diameters up to 175-245 μm and of translucent polycrystalline spheres of the zeolite gismondine. A uniform distribution of Si and Al in the zeolite framework was seen, whereas their shapes showed some stress and microtension in the crystals.
AB - Large single crystals of zeolite Y with diameters up to 210-245 μm and Si/Al = 1.71 were synthesized from a reaction mixture (4.76Na2O:1.0Al2O3:3.5SiO2:454H2O:0.6T2O:5TEA) comprising fumed silica, sodium aluminate and the template bis(2-hydroxyethyl)dimethylammonium chloride in an aqueous triethanolamine (TEA) cosolvent. Scanning electron microscopy, optical microscopy and X ray diffraction showed that the particulate products were mixtures of large transparent faujasite octahedral with diameters up to 175-245 μm and of translucent polycrystalline spheres of the zeolite gismondine. A uniform distribution of Si and Al in the zeolite framework was seen, whereas their shapes showed some stress and microtension in the crystals.
UR - http://www.scopus.com/inward/record.url?scp=0035251289&partnerID=8YFLogxK
U2 - 10.1016/S0022-0248(00)00979-9
DO - 10.1016/S0022-0248(00)00979-9
M3 - Article
AN - SCOPUS:0035251289
SN - 0022-0248
VL - 222
SP - 801
EP - 805
JO - Journal of Crystal Growth
JF - Journal of Crystal Growth
IS - 4
ER -