Effect of thermal treatment conditions on the solid-state synthesis of barium zirconate from barium carbonate and monoclinic zirconia

2021 ◽  
Author(s):  
Miriam Bach ◽  
Thomas Schemmel ◽  
Jana Hubálková ◽  
Maleachi Bu¨hringer ◽  
Helge Jansen ◽  
...  
Keyword(s):  
Solid State ◽  
Thermal Treatment ◽  
Barium Carbonate ◽  
Solid State Synthesis ◽  
Barium Zirconate ◽  
Monoclinic Zirconia ◽  
Treatment Conditions

Solid state synthesis, structural characterization and ionic conductivity of bimetallic alkali-metal yttrium borohydrides MY(BH4)4 (M = Li and Na)

2016 ◽  
Vol 4 (22) ◽  
pp. 8793-8802 ◽  
Author(s):  
Elsa Roedern ◽  
Young-Su Lee ◽  
Morten B. Ley ◽  
Kiho Park ◽  
Young Whan Cho ◽  
...  
Keyword(s):  
Solid State ◽  
Ionic Conductivity ◽  
Thermal Treatment ◽  
Alkali Metal ◽  
Structural Characterization ◽  
Solid State Synthesis

Two bimetallic borohydrides, lithium yttrium tetraborohydride, LiY(BH4)4, and sodium yttrium tetraborohydride, NaY(BH4)4, have been synthesized by thermal treatment and quenching of ball-milled precursors.

Solid-state synthesis of α-Fe and iron carbide nanoparticles by thermal treatment of amorphous Fe2O3

ISIAME 2008 ◽  
2009 ◽  
pp. 167-173 ◽  
Author(s):  
O. Schneeweiss ◽  
R. Zbořil ◽  
B. David ◽  
M. Heřmánek ◽  
M. Mashlan
Keyword(s):  
Solid State ◽  
Thermal Treatment ◽  
Iron Carbide ◽  
Solid State Synthesis

Solid-state synthesis of α-Fe and iron carbide nanoparticles by thermal treatment of amorphous Fe2O3

2009 ◽  
Vol 189 (1-3) ◽  
pp. 167-173 ◽  
Author(s):  
O. Schneeweiss ◽  
R. Zbořil ◽  
B. David ◽  
M. Heřmánek ◽  
M. Mashlan
Keyword(s):  
Solid State ◽  
Thermal Treatment ◽  
Iron Carbide ◽  
Solid State Synthesis

The Effect of High Energy Milling on the Solid State Synthesis of MnFe2O4 from Mixtures of MnO-Fe2O3 and Mn3O4-Fe2O3

2003 ◽  
Vol 58 (5) ◽  
pp. 415-422 ◽  
Author(s):  
V. Berbenni ◽  
A. Marinia ◽  
A. Profumo ◽  
L. Cucca
Keyword(s):  
Solid State ◽  
Thermal Treatment ◽  
Ball Milling ◽  
High Energy ◽  
Physical Mixture ◽  
Solid State Synthesis ◽  
Experimental Conditions ◽  
High Energy Milling ◽  
Mn Oxides

A thermal treatment at 900°C (under nitrogen) of a milled mixture MnO-Fe2O3 yields MnFe2O4 mainly as the product of the reaction between Mn3O4 (produced by ball milling) and Fe2O3. Under the same experimental conditions but starting from an unmilled MnO- Fe2O3 mixture, the formation of MnFe2O4 is only partial and occurs through Mn3O4 (formed by oxidation of MnO). The same thermal treatment (900°C under nitrogen) of a milled Mn3O4-Fe2O3 mixture yields MnFe2O4 mainly as the product of the reaction between Mn3O4 and Mn2O3/MnO2 (the higher Mn oxides being produced by ball milling) and Fe2O3. The effect of high energy milling is more pronounced in the case of the Mn3O4-Fe2O3 system since no MnFe2O4 formation is observed when starting from a physical mixture.

Solid state synthesis of MZrO3 (M = Pb, Cd and Cu) photocatalyst-A Green chemistry approach

2011 ◽  
Vol 3 (7) ◽  
pp. 335-340
Author(s):  
Ashok Vishram Borhade ◽  
◽  
Vishwas Bhaskar Gaikwad ◽  
Yogeshwar Rajaram Baste
Keyword(s):  
Solid State ◽  
Green Chemistry ◽  
Solid State Synthesis

Solid-state Synthesis and Properties of Copolymers of Aniline and o-Methoxyaniline

2012 ◽  
Vol 29 (10) ◽  
pp. 1117
Author(s):  
Abdiryim Tursun ◽  
Jamal Ruxangul ◽  
Awut Tunsagul ◽  
Nurulla Ismayil ◽  
Feng XU ◽  
...  
Keyword(s):  
Solid State ◽  
Solid State Synthesis

scholarly journals Polymer Thermal Treatment Production of Cerium Doped Willemite Nanoparticles: An Analysis of Structure, Energy Band Gap and Luminescence Properties

Materials ◽  
2021 ◽  
Vol 14 (5) ◽  
pp. 1118
Author(s):  
Ibrahim Mustapha Alibe ◽  
Khamirul Amin Matori ◽  
Mohd Hafiz Mohd Zaid ◽  
Salisu Nasir ◽  
Ali Mustapha Alibe ◽  
...  
Keyword(s):  
Solid State ◽  
Thermal Treatment ◽  
Band Gap ◽  
Optical Band Gap ◽  
Dopant Concentration ◽  
Blue Emission ◽  
Green Emission ◽  
Band Gap Energy ◽  
Solid State Lighting ◽  
Gap Energy

The contemporary market needs for enhanced solid–state lighting devices has led to an increased demand for the production of willemite based phosphors using low-cost techniques. In this study, Ce3+ doped willemite nanoparticles were fabricated using polymer thermal treatment method. The special effects of the calcination temperatures and the dopant concentration on the structural and optical properties of the material were thoroughly studied. The XRD analysis of the samples treated at 900 °C revealed the development and or materialization of the willemite phase. The increase in the dopant concentration causes an expansion of the lattice owing to the replacement of larger Ce3+ ions for smaller Zn2+ ions. Based on the FESEM and TEM micrographs, the nanoparticles size increases with the increase in the cerium ions. The mean particles sizes were estimated to be 23.61 nm at 1 mol% to 34.02 nm at 5 mol% of the cerium dopant. The optical band gap energy of the doped samples formed at 900 °C decreased precisely by 0.21 eV (i.e., 5.21 to 5.00 eV). The PL analysis of the doped samples exhibits a strong emission at 400 nm which is ascribed to the transition of an electron from localized Ce2f state to the valence band of O2p. The energy level of the Ce3+ ions affects the willemite crystal lattice, thus causing a decrease in the intensity of the green emission at 530 nm and the blue emission at 485 nm. The wide optical band gap energy of the willemite produced is expected to pave the way for exciting innovations in solid–state lighting applications.

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