Search Results - "Tomaszewski, P.E."

Solvothermal synthesis and characterization of mixed oxides with perovskite-like structure by Miniajluk, N., Trawczyński, J., Zawadzki, M., Tomaszewski, P.E., Miśta, W.

“…•Solvothermal method was successfully used to obtain well-crystallized perovskite.•Solvothermally prepared perovskites are catalytically active in lean CH4…”
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Spectroscopic and structural properties of Na3RE(PO4)2:Yb orthophosphates synthesised by hydrothermal method (RE=Y, Gd) by Godlewska, P., Matraszek, A., Macalik, L., Hermanowicz, K., Ptak, M., Tomaszewski, P.E., Hanuza, J., Szczygieł, I.

“…•Na3RE(PO4)2, RE=Y or Gd, doped with Yb3+ were synthesised by the hydrothermal method.•As-synthesised samples crystallise in the trigonal modification.•After…”
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Structure and vibrational properties of scheelite type Cd0.25RE0.5□0.25MoO4 solid solutions where □ is the cationic vacancy and RE=Sm–Dy by Godlewska, P., Tomaszewicz, E., Macalik, L., Hanuza, J., Ptak, M., Tomaszewski, P.E., Ropuszyńska-Robak, P.

“…► Polycrystalline Cd0.25RE0.5□0.25MoO4 solid solutions were prepared (RE=Pr–Dy). ► The cationic vacancies influence the phonon and electronic properties. ► The…”
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X-ray, SEM, Raman and IR studies of Bi2W2O9 prepared by Pechini method by Mączka, M., Ptak, M., Kępiński, L., Tomaszewski, P.E., Hanuza, J.

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Crystal structure, phonon and luminescence properties of AgRE(WO4)2 tungstates, where RE = Y, Pr, Nd, Sm - Lu by Godlewska, P., Tomaszewicz, E., Macalik, L., Ptak, M., Tomaszewski, P.E., Berkowski, M., Lemański, K., Solarz, P., Dereń, P.J., Hanuza, J.

“…The crystal structure of the all studied compounds was refined in the monoclinic C2/m (C2h3) space group. The IR and Raman spectra of polycrystalline…”
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Magnetic and low temperature phonon studies of CoCr2O4 powders doped with Fe(III) and Ni(II) ions by Ptak, M., Mączka, M., Pikul, A., Tomaszewski, P.E., Hanuza, J.

“…Extensive temperature-dependent phonon studies and low-temperature magnetic measurements of CoCr2−xFexO4 (for x=0.5, 1 and 2) and Co0.9Ni0.1Cr2O4…”
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Magnetic and low temperature phonon studies of CoCr{sub 2}O{sub 4} powders doped with Fe(III) and Ni(II) ions by Ptak, M., Mączka, M., Pikul, A., Tomaszewski, P.E., Hanuza, J.

“…Extensive temperature-dependent phonon studies and low-temperature magnetic measurements of CoCr{sub 2−x}Fe{sub x}O{sub 4} (for x=0.5, 1 and 2) and Co{sub…”
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Raman and IR spectroscopic study of a nonlinear optical crystal, La2CaB10O19 by Szymborska-Małek, K., Ptak, M., Tomaszewski, P.E., Majchrowski, A.

“…•Polarized Raman and IR-reflectance measurements were performed.•Assignments of all observed modes have been proposed.•Large LO–TO splitting was observed for…”
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Optical and structural characterisation of pure and Pr3+ doped LaPO4 and CePO4 nanocrystals by MACALIK, L, TOMASZEWSKI, P. E, MATRASZEK, A, SZCZYGIEL, I, SOLARZ, P, GODLEWSKA, P, SOBCZYK, M, HANUZA, J

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The crystal structure, vibrational and luminescence properties of the nanocrystalline KEu(WO4)2 and KGd(WO4)2:Eu3+ obtained by the Pechini method by MACALIK, L, TOMASZEWSKI, P. E, LISIECKI, R, HANUZA, J

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Correlation between the structural and spectroscopic parameters for Cd1−3xGd2x□xMoO4 solid solutions where □ denotes cationic vacancies by Godlewska, P., Tomaszewicz, E., Macalik, L., Hanuza, J., Ptak, M., Tomaszewski, P.E., Mączka, M., Ropuszyńska-Robak, P.

“…Fourier transform IR and Raman spectra of the Cd1−3xGd2x□xMoO4 solid solutions have been studied and analysed using the factor group approach (□ denotes the…”
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Optical and structural characterisation of pure and Pr 3+ doped LaPO 4 and CePO 4 nanocrystals by Macalik, L., Tomaszewski, P.E., Matraszek, A., Szczygieł, I., Solarz, P., Godlewska, P., Sobczyk, M., Hanuza, J.

“…► The nanoparticles (12–30 nm) of hydrated (hexagonal) and water-free (monoclinic) phases of lanthanum and cerium orthophosphates La(Ce)PO 4 were obtained by…”
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Vibrational and luminescence studies of MIIn(MoO4)2 (MI=K, Rb) and MIAl(MoO4)2 (MI=K, Na) molybdates doped with chromium(III) prepared via the Pechini method by Maczka, M., Hermanowicz, K., Tomaszewski, P.E., Zawadzki, M., Hanuza, J.

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X-ray, SEM, Raman and IR studies of Bi 2W 2O 9 prepared by Pechini method by Mączka, M., Ptak, M., Kępiński, L., Tomaszewski, P.E., Hanuza, J.

“…Formation of Bi 2W 2O 9 has been monitored by X-ray powder diffraction, SEM, and Raman and IR spectra. These methods show that more stable Bi 2WO 6 tungstate…”
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The crystal structure, vibrational and luminescence properties of the nanocrystalline KEu(WO 4) 2 and KGd(WO 4) 2:Eu 3+ obtained by the Pechini method by Macalik, L., Tomaszewski, P.E., Lisiecki, R., Hanuza, J.

“…The luminescent nanocrystalline KEu(WO 4) 2 and KGd 0.98Eu 0.02(WO 4) 2 have been prepared by the Pechini method. X-ray diffraction, infrared and Raman…”
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Vibrational and luminescence studies of M IIn(MoO 4) 2 (M I = K, Rb) and M IAl(MoO 4) 2 (M I = K, Na) molybdates doped with chromium(III) prepared via the Pechini method by Maczka, M., Hermanowicz, K., Tomaszewski, P.E., Zawadzki, M., Hanuza, J.

“…KAl(MoO 4) 2, NaAl(MoO 4) 2, KIn(MoO 4) 2 and RbIn(MoO 4) 2 doped with 2% of chromium(III) ions have been prepared by the Pechini method. The grains of the…”
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Synthesis and characterization of NaIn(WO 4) 2:Cr 3+ nanoparticles by Maczka, M., Hermanowicz, K., Tomaszewski, P.E., Zawadzki, M., Hanuza, J.

“…NaIn(WO 4) 2:Cr 3+ nanoparticles have been prepared by Pechini method. Resultant samples have been characterized by X-ray, transmission electron microscopy,…”
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The crystal structure, vibrational and luminescence properties of the nanocrystalline KEu(WO{sub 4}){sub 2} and KGd(WO{sub 4}){sub 2}:Eu{sup 3+} obtained by the Pechini method by Macalik, L., Tomaszewski, P.E., Lisiecki, R., Hanuza, J., Department of Bioorganic Chemistry, Faculty of Industry and Economics, Wroclaw University of Economics, ul. Komandorska 118/120, 53-345 Wroclaw

“…The luminescent nanocrystalline KEu(WO{sub 4}){sub 2} and KGd{sub 0.98}Eu{sub 0.02}(WO{sub 4}){sub 2} have been prepared by the Pechini method. X-ray…”
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Heat capacity studies of phase transitions in K 3Nb 3O 6(BO 3) 2 by Mączka, M., Włosewicz, D., Tomaszewski, P.E., Hanuza, J.

“…Heat capacity measurements of K 3Nb 3O 6(BO 3) 2, a borate that exhibits superionic conductivity and ferroelectric properties, have been performed in the…”
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Crystal structure, vibrational properties and luminescence of NaMg 3Al(MoO 4) 5 crystal doped with Cr 3+ ions by Hermanowicz, K., Mączka, M., Wołcyrz, M., Tomaszewski, P.E., Paściak, M., Hanuza, J.

“…Crystals of NaMg 3Al(MoO 4) 5 doped with 0.5% Cr 3+ ions have been synthesized and characterized by a single-crystal X-ray structure analysis and IR, Raman,…”
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