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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Autores principales:	Olga V. Nestroinaia, Irina G. Ryltsova, Olga E. Lebedeva
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	layered double hydroxides nickel(III) co-precipitation hydrothermal treatment microwave treatment XRD Crystallography QD901-999
Acceso en línea:	https://doaj.org/article/3e516db66ffa4d19946c8750558a69e6
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spelling	oai:doaj.org-article:3e516db66ffa4d19946c8750558a69e62021-11-25T17:19:43ZEffect of Synthesis Method on Properties of Layered Double Hydroxides Containing Ni(III)10.3390/cryst111114292073-4352https://doaj.org/article/3e516db66ffa4d19946c8750558a69e62021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4352/11/11/1429https://doaj.org/toc/2073-4352Unstable 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.Olga V. NestroinaiaIrina G. RyltsovaOlga E. LebedevaMDPI AGarticlelayered double hydroxidesnickel(III)co-precipitationhydrothermal treatmentmicrowave treatmentXRDCrystallographyQD901-999ENCrystals, Vol 11, Iss 1429, p 1429 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	layered double hydroxides nickel(III) co-precipitation hydrothermal treatment microwave treatment XRD Crystallography QD901-999
spellingShingle	layered double hydroxides nickel(III) co-precipitation hydrothermal treatment microwave treatment XRD Crystallography QD901-999 Olga V. Nestroinaia Irina G. Ryltsova Olga E. Lebedeva Effect of Synthesis Method on Properties of Layered Double Hydroxides Containing Ni(III)
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.
format	article
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
title	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_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_sort	effect of synthesis method on properties of layered double hydroxides containing ni(iii)
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/3e516db66ffa4d19946c8750558a69e6
work_keys_str_mv	AT olgavnestroinaia effectofsynthesismethodonpropertiesoflayereddoublehydroxidescontainingniiii AT irinagryltsova effectofsynthesismethodonpropertiesoflayereddoublehydroxidescontainingniiii AT olgaelebedeva effectofsynthesismethodonpropertiesoflayereddoublehydroxidescontainingniiii
_version_	1718412465802313728

Effect of Synthesis Method on Properties of Layered Double Hydroxides Containing Ni(III)

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