Three open\|framework zinc germanophosphates have been synthesized from ethylene glycol systems of Zn(Ac)\-2·2H\-2O\|H\-3PO\-4\|\%R\%\|GeO\-2\|Py\|EG, where \%R\% stands for an amine and EG for ethylene glycol. I...
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Three open\|framework zinc germanophosphates have been synthesized from ethylene glycol systems of Zn(Ac)\-2·2H\-2O\|H\-3PO\-4\|\%R\%\|GeO\-2\|Py\|EG, where \%R\% stands for an amine and EG for ethylene glycol. It was found that by selecting proper amines as structure\|directing templates during crystallization open\|framework zinc germanophosphates were synthesized. The structures of the zinc germanophosphates were characterized by X\|ray diffraction(XRD), scanning electron microscopy(SEM), inductively coupled plasma(ICP) analysis, infrared spectroscopy(IR).
Co(en) 3V 3O 6·H 2O has been synthesized by using hydrothermal method and characterized by IR, ICP, XPS and X ray diffraction analysis. The results of the X ray diffraction analysis show that structure of Co(en) ...
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Co(en) 3V 3O 6·H 2O has been synthesized by using hydrothermal method and characterized by IR, ICP, XPS and X ray diffraction analysis. The results of the X ray diffraction analysis show that structure of Co(en) 3(VO 3) 3·H 2O is orthorhombic with P2(1)2(1)2(1) , and the crystal data are a =0 819 2(7) nm, b =1.263 9(1) nm, c =1.804 8(2) nm, V =1.868 8(3) nm 3, Z=4, D c=1.973 g/cm 3, F (000)=1 124, R 1=0.040 7, wR 2=0.094 9, ( Δ/ρ ) max =706 e/nm 3 and ( Δ/ρ ) min =-452 e/nm 3. The results of XPS show that the Co 2+ was oxidized to Co 3+ (en) 3 at about pH=7.0 in the aqueous solution.
Mesoporous aluminosilicates with cubic and hexagonal structure have been synthesized by structure units of β zeolite in a two step crystallization process and characterized by XRD, IR, N 2 physical adsorption and des...
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Mesoporous aluminosilicates with cubic and hexagonal structure have been synthesized by structure units of β zeolite in a two step crystallization process and characterized by XRD, IR, N 2 physical adsorption and desorption, 27 Al MAS NMR and NH 3 TPD techniques. The results show that MB48(25) and MB41(25) were similar to MCM 48 and MCM 41 on the long range structure respectively and MB48 with a cubic structure can be synthesized under the condition of a lower n (CTMAB)/ n (SiO 2) ratio. HMB48(25) and HMB41(25) exhibit a stronger acidic strength than conventional HMCM 41. The catalytic activity of HMB48(25) was the highest for cumene cracking and alkylation of 2,4 tert butylphenol with tert butylalcohol.
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