Effect of Synthesis Method on Properties of Layered Double Hydroxides Containing Ni(III)
Unstable oxidation state +3 of nickel can be stabilized in the structure of layered double hydroxides, the resulting crystallinity and properties being dependent on the synthesis method. Three different wet chemical methods (co-precipitation at variable pH, co-precipitation followed by hydrothermal...
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| Format: | Article |
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MDPI AG
2021-11-01
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| Series: | Crystals |
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| Online Access: | https://www.mdpi.com/2073-4352/11/11/1429 |
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| author | Olga V. Nestroinaia Irina G. Ryltsova Olga E. Lebedeva |
| author_facet | Olga V. Nestroinaia Irina G. Ryltsova Olga E. Lebedeva |
| author_sort | Olga V. Nestroinaia |
| collection | DOAJ |
| description | Unstable oxidation state +3 of nickel can be stabilized in the structure of layered double hydroxides, the resulting crystallinity and properties being dependent on the synthesis method. Three different wet chemical methods (co-precipitation at variable pH, co-precipitation followed by hydrothermal treatment, co-precipitation with microwave treatment) were used to synthesize Mg/Ni–Al layered double hydroxides containing triply charged nickel cations. Lattice parameters of the samples synthesized by various methods were found to differ from each other by about 1.5%. The most crystallized sample was obtained by hydrothermal synthesis. The oxidation state of nickel in the LDH samples was confirmed by XPS. TEM mapping gave evidence of the uniform distribution of nickel in all the samples. The LDHs’ reduction with hydrogen and thermal transformations of the phase composition and morphology of LDHs were studied in detail. The properties of the samples synthesized by the different methods were shown to be quite similar. |
| first_indexed | 2024-03-10T05:34:18Z |
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| id | doaj.art-3e516db66ffa4d19946c8750558a69e6 |
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| issn | 2073-4352 |
| language | English |
| last_indexed | 2024-03-10T05:34:18Z |
| publishDate | 2021-11-01 |
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| series | Crystals |
| spelling | doaj.art-3e516db66ffa4d19946c8750558a69e62023-11-22T22:59:26ZengMDPI AGCrystals2073-43522021-11-011111142910.3390/cryst11111429Effect of Synthesis Method on Properties of Layered Double Hydroxides Containing Ni(III)Olga V. Nestroinaia0Irina G. Ryltsova1Olga E. Lebedeva2Institute of Pharmacy, Chemistry and Biology, Belgorod State National Research University, 308015 Belgorod, RussiaInstitute of Pharmacy, Chemistry and Biology, Belgorod State National Research University, 308015 Belgorod, RussiaInstitute of Pharmacy, Chemistry and Biology, Belgorod State National Research University, 308015 Belgorod, RussiaUnstable oxidation state +3 of nickel can be stabilized in the structure of layered double hydroxides, the resulting crystallinity and properties being dependent on the synthesis method. Three different wet chemical methods (co-precipitation at variable pH, co-precipitation followed by hydrothermal treatment, co-precipitation with microwave treatment) were used to synthesize Mg/Ni–Al layered double hydroxides containing triply charged nickel cations. Lattice parameters of the samples synthesized by various methods were found to differ from each other by about 1.5%. The most crystallized sample was obtained by hydrothermal synthesis. The oxidation state of nickel in the LDH samples was confirmed by XPS. TEM mapping gave evidence of the uniform distribution of nickel in all the samples. The LDHs’ reduction with hydrogen and thermal transformations of the phase composition and morphology of LDHs were studied in detail. The properties of the samples synthesized by the different methods were shown to be quite similar.https://www.mdpi.com/2073-4352/11/11/1429layered double hydroxidesnickel(III)co-precipitationhydrothermal treatmentmicrowave treatmentXRD |
| spellingShingle | Olga V. Nestroinaia Irina G. Ryltsova Olga E. Lebedeva Effect of Synthesis Method on Properties of Layered Double Hydroxides Containing Ni(III) Crystals layered double hydroxides nickel(III) co-precipitation hydrothermal treatment microwave treatment XRD |
| title | Effect of Synthesis Method on Properties of Layered Double Hydroxides Containing Ni(III) |
| title_full | Effect of Synthesis Method on Properties of Layered Double Hydroxides Containing Ni(III) |
| title_fullStr | Effect of Synthesis Method on Properties of Layered Double Hydroxides Containing Ni(III) |
| title_full_unstemmed | Effect of Synthesis Method on Properties of Layered Double Hydroxides Containing Ni(III) |
| title_short | Effect of Synthesis Method on Properties of Layered Double Hydroxides Containing Ni(III) |
| title_sort | effect of synthesis method on properties of layered double hydroxides containing ni iii |
| topic | layered double hydroxides nickel(III) co-precipitation hydrothermal treatment microwave treatment XRD |
| url | https://www.mdpi.com/2073-4352/11/11/1429 |
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