Photo-Active K and Na Doped Strontium Ferrite by Co-Precipitation; Ph, Oxidative and Thermal Stabilities Characterisation

2021 ◽  
Author(s):  
Isiaka Abdulwahab ◽  
Ibrahim Abdulkadir ◽  
Suleiman Ola Idris ◽  
Hadiza Abdulrahman Lawal
Keyword(s):  
Strontium Ferrite ◽  
Thermal Stabilities ◽  
Precipitation Ph ◽  
Co Precipitation

The roles of Co-precipitation pH, phase-purity and alloy formation for the ammonia decomposition activity of Ga-promoted Fe/MgO catalysts

2017 ◽  
Vol 548 ◽  
pp. 52-61 ◽  
Author(s):  
Denise Rein ◽  
Klaus Friedel Ortega ◽  
Claudia Weidenthaler ◽  
Eckhard Bill ◽  
Malte Behrens
Keyword(s):  
Ammonia Decomposition ◽  
Alloy Formation ◽  
Phase Purity ◽  
Precipitation Ph ◽  
Co Precipitation

The magnetic properties of permanent strontium ferrite doped with rare-earth by chemical co-precipitation method

2018 ◽  
Vol 529 (1) ◽  
pp. 120-127 ◽  
Author(s):  
Ze Wu ◽  
Ruonan Zhang ◽  
Zhaowei Yu ◽  
Lianwei Shan ◽  
Limin Dong ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Rare Earth ◽  
Strontium Ferrite ◽  
Precipitation Method ◽  
Co Precipitation

Influence of the co-precipitation pH on the physico-chemical and catalytic properties of vanadium aluminum oxide catalyst

2004 ◽  
Vol 263 (2) ◽  
pp. 163-170 ◽  
Author(s):  
Nathalie Blangenois ◽  
Mihaela Florea ◽  
Paul Grange ◽  
Ricardo Prada Silvy ◽  
Sergey P Chenakin ◽  
...  
Keyword(s):  
Aluminum Oxide ◽  
Oxide Catalyst ◽  
Catalytic Properties ◽  
Aluminum Oxide Catalyst ◽  
Physico Chemical ◽  
Precipitation Ph ◽  
Co Precipitation

Effect of La-Zn Doping on Magnetic Properties of SrFe12O19

2014 ◽  
Vol 680 ◽  
pp. 66-69
Author(s):  
Xuan Wen Liu ◽  
Xiao Chen ◽  
Wang De He ◽  
Xi Wei Qi
Keyword(s):  
Magnetic Properties ◽  
Saturation Magnetization ◽  
Strontium Ferrite ◽  
Precipitation Method ◽  
Original Sample ◽  
Zn Doping ◽  
Specific Saturation Magnetization ◽  
Co Precipitation ◽  
Zn Ions

La-Zn doped strontium ferrite, Sr1-xZnxFe12(1-x) La12xO19, was prepared by chemical co-precipitation method. The samples were characterized by XRD, SEM and VSM and the results reveal that La-Zn ions are dispersed completely into the strontium ferrite lattice at 900°C. The VSM analysis shows that Hcj increases to 240.1 KA/m, almost double the value of the original sample. And the specific saturation magnetization increases from 48.78 A • m2/Kg to 63.11A• m2/Kg.

scholarly journals Synthesis and characterizations of (Mg, Co, Ni, Cu, Zn)O high-entropy oxides

2021 ◽  
Vol 3 (8) ◽  
Author(s):  
Temesgen Debelo Desissa ◽  
Matusal Meja ◽  
Dinsefa Andoshe ◽  
Femi Olu ◽  
Fekadu Gochole ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
High Temperature ◽  
Ceramic Materials ◽  
Solid State Reaction Method ◽  
Potential Candidate ◽  
Thermal Stabilities ◽  
Microstructural Investigation ◽  
High Entropy ◽  
Structural Applications ◽  
Co Precipitation

AbstractHigh-temperature structural ceramic materials require stability in terms of thermal and mechanical properties. High entropy oxides (HEOs) are among the emerging novel family of advanced ceramic materials with peculiar functional properties. However, their thermal stabilities and mechanical properties are not well investigated. In this work, HEO systems were synthesized from binary oxides of MgO, CoO, NiO, CuO, and ZnO using solid-state reaction method at high temperature, after obtaining the individual oxides through co-precipitation methods. The phase purity of as-synthesized and sintered samples was characterized using X-ray powder diffraction, while the microstructural investigation was performed using Scanning electron microscopy. Mechanical property of the sintered samples at different sintering times and temperatures was investigated and the sample sintered at a sintering temperature of 1200 °C for 15 h sintering time showed a maximum Vickers hardness of about 16 GPa. This result is comparable with some of the hard ceramic materials, and therefore the materials could be a potential candidate for structural applications.

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