Synthesis and characterization of three new rare-earth orthoborates: Ba2MgY2(BO3)4, Ba2CdY2(BO3)4, and Ba2CdSc(BO3)3

2020 ◽  
Vol 49 (31) ◽  
pp. 10874-10879
Author(s):  
Runqing Liu ◽  
Hongping Wu ◽  
Hongwei Yu ◽  
Zhanggui Hu ◽  
Jiyang Wang ◽  
...  
Keyword(s):  
Rare Earth ◽  
High Temperature ◽  
Solution Method ◽  
Synthesis And Characterization ◽  
High Temperature Solution ◽  
X Ray Diffraction ◽  
X Ray ◽  
Temperature Solution ◽  
First Time

Three rare-earth orthoborates Ba2MgY2(BO3)4, Ba2CdY2(BO3)4, and Ba2CdSc(BO3)3 were synthesized via a high-temperature solution method and their structures were determined by single crystal X-ray diffraction for the first time.

Pb3Ba3Zn6(BO3)8 and α-BaZn2(BO3)2: new members of the zincoborates containing two different dimensional Zn–O units

2020 ◽  
Vol 7 (1) ◽  
pp. 101-107
Author(s):  
Xiaobo Pan ◽  
Hongping Wu ◽  
Shichao Cheng ◽  
Zhengping Wang
Keyword(s):  
High Temperature ◽  
Single Crystal ◽  
Solution Method ◽  
High Temperature Solution ◽  
X Ray Diffraction ◽  
New Members ◽  
X Ray ◽  
Temperature Solution ◽  
First Time

Two new zincoborates, namely, Pb3Ba3Zn6(BO3)8 and α-BaZn2(BO3)2, were synthesized by the high-temperature solution method and their structures were determined by single-crystal X-ray diffraction for the first time.

scholarly journals High-pressure synthesis and characterization of the non-centrosymmetric scandium borate ScB6O9(OH)3

2020 ◽  
Vol 75 (6-7) ◽  
pp. 597-603
Author(s):  
Birgit Fuchs ◽  
Hubert Huppertz
Keyword(s):  
High Pressure ◽  
High Temperature ◽  
Synthesis And Characterization ◽  
X Ray Diffraction ◽  
X Ray ◽  
High Pressure High Temperature ◽  
Structure Solution ◽  
Temperature Experiment ◽  
Pressure Synthesis

AbstractThe non-centrosymmetric scandium borate ScB6O9(OH)3 was obtained through a high-pressure/high-temperature experiment at 6 GPa and 1473 K. Single-crystal X-ray diffraction revealed that the structure is isotypic to InB6O9(OH)3 containing borate triple layers separated by scandium layers. The compound crystallizes in the space group Fdd2 with the lattice parameters a = 38.935(4), b = 4.4136(4), and c = 7.6342(6) Å. Powder X-ray diffraction and vibrational spectroscopy were used to further characterize the compound and verify the proposed structure solution.

Synthesis, crystal structure and luminescence properties of a new samarium borate phosphate, CsNa2Sm2(BO3)(PO4)2

2020 ◽  
Vol 76 (12) ◽  
pp. 1068-1075
Author(s):  
Dan Zhao ◽  
Lin-Ying Shi ◽  
Rui-Juan Zhang ◽  
Ya-Li Xue
Keyword(s):  
Crystal Structure ◽  
High Temperature ◽  
Three Dimensional ◽  
High Temperature Solution ◽  
X Ray Diffraction ◽  
Orthorhombic Space Group ◽  
X Ray ◽  
Temperature Solution ◽  
Light Excitation ◽  
Total Structure

A new caesium sodium samarium borate phosphate, CsNa2Sm2(BO3)(PO4)2, has been obtained successfully by the high-temperature solution growth (HTSG) method and single-crystal X-ray diffraction analysis reveals that it crystallizes in the orthorhombic space group Cmcm. The structure contains BO3, PO4, NaO7 and SmO7 polyhedra which are interconnected via corner- or edge-sharing O atoms to form a three-dimensional [Na2Sm2(BO3)(PO4)2]∞ network. This network delimits large cavities where large Cs+ cations reside to form the total structure. Under 402 nm light excitation, CsNa2Sm2(BO3)(PO4)2 exhibits three emission bands due to the 4f→4f transitions of Sm3+. Furthermore, we introduced Gd3+ into Sm3+ sites to optimize the Sm3+ concentration and improve the luminescence intensity. The optimal concentration is Gd/Sm = 98/2. The luminescent lifetime of a series of CsNa2Gd2(1–x)Sm2x (BO3)(PO4)2 phosphors shows a gradual degradation of lifetime from 2.196 to 0.872 ms for x = 0.01–0.10. The Commission Internationale de l'Eclairage (CIE) 1931 calculation reveals that CsNa2Gd1.96Sm0.04(BO3)(PO4)2 can emit orange light under 402 nm excitation.

scholarly journals Synthesis and Characterization of Sr2CeO4 Phosphor Doped with Erbium

2010 ◽  
Vol 13 (1-2) ◽  
pp. 17
Author(s):  
K.V.R. Murthy ◽  
K. Suresh ◽  
B. Nageswara Rao ◽  
B. Walter Ratna Kumar ◽  
Ch. Atchyutha Rao ◽  
...  
Keyword(s):  
Rare Earth ◽  
Solid State ◽  
Sem Analysis ◽  
Synthesis And Characterization ◽  
X Ray Diffraction ◽  
Rare Earth Ion ◽  
Solid State Reaction Technique ◽  
X Ray ◽  
Pl Emission

<p>The present paper reports the Photoluminescence (PL) of the Sr<sub>2</sub>CeO<sub>4</sub> phosphor, singly doped with Erbium rare-earth ion with different concentrations (0.01, 0.1, 0.2, 0.5 and 1%).The phosphor samples were synthesized using the standard solid state reaction technique. The effect of Er dopant on the structural, morphological, and Photoluminescent properties of the samples are studied with X-ray diffraction (XRD), PL and SEM analysis. The PL emission of undoped Sr<sub>2</sub>CeO<sub>4</sub> phosphor was observed at 470 nm with high intensity followed by the primary Er emissions with good intensity at 525, 530, 549, 557 and 565 nm.</p>

Syntheses, structures and characterization of non-centrosymmetric Rb2Zn3(P2O7)2 and centrosymmetric Cs2M3(P2O7)2 (M = Zn and Mg)

2020 ◽  
Vol 7 (18) ◽  
pp. 3482-3490
Author(s):  
Zhongfu Song ◽  
Hongwei Yu ◽  
Hongping Wu ◽  
Zhanggui Hu ◽  
Jiyang Wang ◽  
...  
Keyword(s):  
High Temperature ◽  
Solution Method ◽  
High Temperature Solution ◽  
Temperature Solution

Three phosphates Rb2Zn3(P2O7)2 and Cs2M3(P2O7)2 (M = Zn and Mg) were successfully synthesized by a high-temperature solution method.

Top-seeded solution growth and characterization of Raman crystal LiVMoO6

RSC Advances ◽  
2016 ◽  
Vol 6 (109) ◽  
pp. 107519-107524 ◽  
Author(s):  
Zheng Wang ◽  
Qian Wu ◽  
Min Zhu ◽  
Zeliang Gao ◽  
Xiangxin Tian ◽  
...  
Keyword(s):  
High Temperature ◽  
Single Crystal ◽  
Solution Growth ◽  
High Temperature Solution ◽  
Temperature Solution ◽  
Top Seeded Solution Growth ◽  
First Time

Single crystal LiVMoO6, with dimensions up to 20 mm × 15 mm × 12 mm, has been grown successfully for the first time from a high-temperature solution with MoO3 as a flux.

Synthesis and characterization of robust three-dimensional chiral metal sulfates

RSC Advances ◽  
2014 ◽  
Vol 4 (92) ◽  
pp. 50435-50442 ◽  
Author(s):  
J. N. Behera ◽  
Joydeep Bhattacharjee ◽  
Satoshi Horike ◽  
Subba R. Marri ◽  
Prem P. Dahiya
Keyword(s):  
Thermal Decomposition ◽  
High Temperature ◽  
First Principles ◽  
Three Dimensional ◽  
Ammonium Ion ◽  
Synthesis And Characterization ◽  
First Principles Calculations ◽  
X Ray Diffraction ◽  
X Ray

Chiral three-dimensional Mg(ii) and Mn(ii) sulfates have been synthesized, well characterized and studied from first-principles calculations. High temperature X-ray diffraction, thermogravimetric analysis and DFT calculations reveal that the structures of both the compounds remain intact even after the thermal decomposition of the ammonium ion.

Synthesis and Characterization of a Cubic Iron Hydroxy Boracite

2011 ◽  
Vol 66 (2) ◽  
pp. 107-114 ◽  
Author(s):  
Stephanie C. Neumair ◽  
Johanna S. Knyrim ◽  
Oliver Oeckler ◽  
Reinhard Kaindl ◽  
Hubert Huppertz
Keyword(s):  
Crystal Structure ◽  
High Pressure ◽  
High Temperature ◽  
Single Crystals ◽  
Room Temperature ◽  
Synthesis And Characterization ◽  
X Ray Diffraction ◽  
X Ray ◽  
High Pressure High Temperature

The cubic iron hydroxy boracite Fe3B7O13OH・1.5H2O was synthesized from Fe2O3 and B2O3 under high-pressure/high-temperature conditions of 3 GPa and 960 °C in a modified Walker-type multianvil apparatus. The crystal structure was determined at room temperature by X-ray diffraction on single crystals. It crystallizes in the cubic space group F4̄3c (Z = 8) with the parameters a = 1222.4(2) pm, V = 1.826(4) nm3, R1 = 0.0362, and wR2 = 0.0726 (all data). The B-O network is similar to that of other cubic boracites.

scholarly journals Synthesis and Characterization of the Amidomanganates Rb2[Mn(NH2)4] and Cs2[Mn(NH2)4]

Crystals ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 676
Author(s):  
Christian Bäucker ◽  
Soeren Bauch ◽  
Rainer Niewa
Keyword(s):  
High Temperature ◽  
Single Phase ◽  
Inert Atmosphere ◽  
High Temperature Phase ◽  
Synthesis And Characterization ◽  
Temperature Phase ◽  
X Ray Diffraction ◽  
X Ray ◽  
Ir Spectroscopic

We report the successful synthesis of Rb2[Mn(NH2)4] and Cs2[Mn(NH2)4] from ammonothermal conditions at 723 K and pressures above 850 bar. Both compounds were obtained single phase according to powder X-ray diffraction. The crystal structures were determined by single crystal X-ray diffraction. For Rb2[Mn(NH2)4] we have obtained the high-temperature phase. The structures are analyzed with respect to the earlier reported alkali metal amidomanganates. Upon heating in inert atmosphere Cs2[Mn(NH2)4] decomposes to manganese nitrides. IR spectroscopic results are reported.

Synthesis, structure and characterization of three new Mg-containing phosphates with deep-UV cut-off edges

2020 ◽  
Vol 44 (17) ◽  
pp. 6771-6777 ◽  
Author(s):  
Zhen Qian ◽  
Hongping Wu ◽  
Hongwei Yu ◽  
Zhanggui Hu ◽  
Jiyang Wang ◽  
...  
Keyword(s):  
High Temperature ◽  
Solution Method ◽  
High Temperature Solution ◽  
Temperature Solution ◽  
Deep Uv

Three new Mg-containing phosphates, AMg2P3O10 (A = Li, Cs) and Rb2MgP2O7, have been successfully synthesized using a high-temperature solution method.

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