Synthesis, structure, oxygen stoichiometry, and electrical properties of doped ruddlesden-popper strontium cobaltite Sr1·875Ce0·025CoO4-δ, Sr1·875Ce0·025Co0·75Ni0·25O4+δ novel compounds
We report the synthesis of Sr1·875Ce0·025CoO4-δ and Sr1·875Ce0·025Co0·75Ni0·25O4+δ for the first time, each compound was synthesised using Co-precipitation and Sol-Gel methods, at 1050 °C for 144 and 120 h respectively. Oxygen stoichiometry was determined using Iodometric titration, we have noticed...
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| Format: | Article |
| Language: | English |
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Elsevier
2023-05-01
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| Series: | Heliyon |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844023034709 |
| _version_ | 1797815494555729920 |
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| author | Ali Shaban Abdullah Mohammad Hicham Abazli Manar Hassan |
| author_facet | Ali Shaban Abdullah Mohammad Hicham Abazli Manar Hassan |
| author_sort | Ali Shaban Abdullah |
| collection | DOAJ |
| description | We report the synthesis of Sr1·875Ce0·025CoO4-δ and Sr1·875Ce0·025Co0·75Ni0·25O4+δ for the first time, each compound was synthesised using Co-precipitation and Sol-Gel methods, at 1050 °C for 144 and 120 h respectively. Oxygen stoichiometry was determined using Iodometric titration, we have noticed oxygen hypostoichiometry for Ce-doped compound and hyperstoichiometry state after Ni-doping. Electrical properties were studied for sintered pellets, Electrical resistance was measured in the range (−0.5–+0.5 v). Specific electrical resistivity and electrical conductivity were calculated from resistance measurements. It was found that the Ce-doped compound has about three times higher conductivity (σC1 = 0.000000058423295 s cm−1) Compared with the Ni-doped one (σN2 = 0.000000022384787 s cm−1). Electrical Capacitance was measured at 1 kHz frequency, the relative dielectric constant εr, and the loss tangent tanδ were calculated accordingly. The results showed that the Ni-doped compound has higher capacitance but lower εr and dissipation factor values. |
| first_indexed | 2024-03-13T08:23:39Z |
| format | Article |
| id | doaj.art-443e47dfbb664afcbe6ae5ccef6fb36e |
| institution | Directory Open Access Journal |
| issn | 2405-8440 |
| language | English |
| last_indexed | 2024-03-13T08:23:39Z |
| publishDate | 2023-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj.art-443e47dfbb664afcbe6ae5ccef6fb36e2023-05-31T04:47:04ZengElsevierHeliyon2405-84402023-05-0195e16263Synthesis, structure, oxygen stoichiometry, and electrical properties of doped ruddlesden-popper strontium cobaltite Sr1·875Ce0·025CoO4-δ, Sr1·875Ce0·025Co0·75Ni0·25O4+δ novel compoundsAli Shaban Abdullah0Mohammad Hicham Abazli1Manar Hassan2Corresponding author.; Chemistry Department, Faculty of Science, Tishreen University, Lattakia, SyriaChemistry Department, Faculty of Science, Tishreen University, Lattakia, SyriaChemistry Department, Faculty of Science, Tishreen University, Lattakia, SyriaWe report the synthesis of Sr1·875Ce0·025CoO4-δ and Sr1·875Ce0·025Co0·75Ni0·25O4+δ for the first time, each compound was synthesised using Co-precipitation and Sol-Gel methods, at 1050 °C for 144 and 120 h respectively. Oxygen stoichiometry was determined using Iodometric titration, we have noticed oxygen hypostoichiometry for Ce-doped compound and hyperstoichiometry state after Ni-doping. Electrical properties were studied for sintered pellets, Electrical resistance was measured in the range (−0.5–+0.5 v). Specific electrical resistivity and electrical conductivity were calculated from resistance measurements. It was found that the Ce-doped compound has about three times higher conductivity (σC1 = 0.000000058423295 s cm−1) Compared with the Ni-doped one (σN2 = 0.000000022384787 s cm−1). Electrical Capacitance was measured at 1 kHz frequency, the relative dielectric constant εr, and the loss tangent tanδ were calculated accordingly. The results showed that the Ni-doped compound has higher capacitance but lower εr and dissipation factor values.http://www.sciencedirect.com/science/article/pii/S2405844023034709Ruddlesden-popperRPCo-precipitationSol-gelXRDIodometry |
| spellingShingle | Ali Shaban Abdullah Mohammad Hicham Abazli Manar Hassan Synthesis, structure, oxygen stoichiometry, and electrical properties of doped ruddlesden-popper strontium cobaltite Sr1·875Ce0·025CoO4-δ, Sr1·875Ce0·025Co0·75Ni0·25O4+δ novel compounds Heliyon Ruddlesden-popper RP Co-precipitation Sol-gel XRD Iodometry |
| title | Synthesis, structure, oxygen stoichiometry, and electrical properties of doped ruddlesden-popper strontium cobaltite Sr1·875Ce0·025CoO4-δ, Sr1·875Ce0·025Co0·75Ni0·25O4+δ novel compounds |
| title_full | Synthesis, structure, oxygen stoichiometry, and electrical properties of doped ruddlesden-popper strontium cobaltite Sr1·875Ce0·025CoO4-δ, Sr1·875Ce0·025Co0·75Ni0·25O4+δ novel compounds |
| title_fullStr | Synthesis, structure, oxygen stoichiometry, and electrical properties of doped ruddlesden-popper strontium cobaltite Sr1·875Ce0·025CoO4-δ, Sr1·875Ce0·025Co0·75Ni0·25O4+δ novel compounds |
| title_full_unstemmed | Synthesis, structure, oxygen stoichiometry, and electrical properties of doped ruddlesden-popper strontium cobaltite Sr1·875Ce0·025CoO4-δ, Sr1·875Ce0·025Co0·75Ni0·25O4+δ novel compounds |
| title_short | Synthesis, structure, oxygen stoichiometry, and electrical properties of doped ruddlesden-popper strontium cobaltite Sr1·875Ce0·025CoO4-δ, Sr1·875Ce0·025Co0·75Ni0·25O4+δ novel compounds |
| title_sort | synthesis structure oxygen stoichiometry and electrical properties of doped ruddlesden popper strontium cobaltite sr1·875ce0·025coo4 δ sr1·875ce0·025co0·75ni0·25o4 δ novel compounds |
| topic | Ruddlesden-popper RP Co-precipitation Sol-gel XRD Iodometry |
| url | http://www.sciencedirect.com/science/article/pii/S2405844023034709 |
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