Some structural aspects of neodymium praseodymium oxalate single crystals grown in hydro silica gels
作者： Cyriac Joseph , M A Ittyachen , K S Raju
DOI: 10.1007/BF02753212
关键词: X-ray photoelectron spectroscopy 、 Oxalate 、 Inorganic chemistry 、 Materials science 、 Praseodymium 、 Isostructural 、 Neodymium 、 Oxalic acid 、 Infrared spectroscopy 、 Aqueous solution
摘要: The mixed crystals of neodymium praseodymium oxalate are grown by the diffusion a mixture aqueous solutions nitrate and (as an upper reactant) into set gel embedded with oxalic acid. By varying concentration (by volume) rare earth nitrates in reactant, incorporation Nd Pr has been studied. Tabular well defined hexagonal basal planes observed concentrations. X-ray diffraction patterns these powdered samples reveal that ‘isostructural’, while IR FTIR spectra establish presence groups. TGA DSC analyses show correctness chemical formula for crystals, release water molecules (endothermic) CO CO2 (exothermic), oxides as stable residue. fluorescence (XRF) energy dispersive (EDAX) heavy elements qualitatively to good extent quantitatively. photoelectron spectroscopic (XPS) studies confirm (Nd Pr) their respective oxides. findings techniques characterization excellent agreement proposed empirical structure oxalates. implications discussed.
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sci-hub.se 参考文章(12)
Zhang Yugeng, Su Qinde, Zhao Guiwen, Photoacoustic Spectra of Pr3+, Nd3+, Gd3+ Acetate Complexes Crystal Research and Technology. ,vol. 28, pp. 995- 999 ,(1993) , 10.1002/CRAT.2170280723
Jayakumari Isac, M A Ittyachen, K S Raju, Praseodymium barium molybdate—its growth and structural characterization Bulletin of Materials Science. ,vol. 19, pp. 495- 504 ,(1996) , 10.1007/BF02744821
Cyriak Joseph, George Varghese, M. A. Ittyachen, Growth and characterization of mixed neodymium praseodymium oxalatze decahydrate crystals in silica gel Crystal Research and Technology. ,vol. 30, pp. 159- 164 ,(1995) , 10.1002/CRAT.2170300203
A. W. Czanderna, Klaus Reindl, Methods of Surface Analysis Journal of The Electrochemical Society. ,vol. 124, ,(1977) , 10.1149/1.2133239
M. Gałczyński, W. Strȩk, Concentration dependence of absorption spectra of Pr3+ in LiLa1−xPrxP4O12 crystals Journal of Physics and Chemistry of Solids. ,vol. 52, pp. 681- 683 ,(1991) , 10.1016/0022-3697(91)90167-X
Heinz K. Henisch, J. S. Blakemore, Crystal Growth in Gels American Journal of Physics. ,vol. 39, pp. 591- 592 ,(1971) , 10.1119/1.1986234
P N Kotru, K K Raina, Magnetic moment and susceptibility measurements of pure Nd and mixed rare-earth (Di) tartrate crystals Journal of Physics D. ,vol. 19, ,(1986) , 10.1088/0022-3727/19/1/003
Cyriac Joseph, George Varghese, M. A. Ittyachen, Magnetic Moment and Susceptibility Measurements of Mixed Rare Earth Oxalate Crystals Crystal Research and Technology. ,vol. 31, pp. 127- 130 ,(1996) , 10.1002/CRAT.2170310120
K S Raju, K N Krishna, Jayakumari Issac, M A Ittyachen, Structural characterization of gel-grown neodymium copper oxalate single crystals Bulletin of Materials Science. ,vol. 17, pp. 1447- 1455 ,(1994) , 10.1007/BF02747242
Junnosuke Fujita, Kazuo Nakamoto, Masahisa Kobayashi, Infrared Spectra of Metallic Complexes. III. The Infrared Spectra of Metallic Oxalates The Journal of Physical Chemistry. ,vol. 61, pp. 1014- 1015 ,(1957) , 10.1021/J150553A045