dor_id: 4149325

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336.#.#.b: article

336.#.#.3: Artículo de Investigación

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351.#.#.b: Journal of Applied Research and Technology

351.#.#.a: Artículos

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270.1.#.p: Revistas UNAM. Dirección General de Publicaciones y Fomento Editorial, UNAM en revistas@unam.mx

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856.4.0.u: https://jart.icat.unam.mx/index.php/jart/article/view/1700/996

100.1.#.a: Palacios, Luis; González, Gonzalo; Ovalle Encinia, Oscar; Lima, Enrique; Ramírez Meneses, Esther; Pfeiffer, Heriberto

524.#.#.a: Palacios, Luis, et al. (2023). Structural analysis of non-stoichiometric lithium cuprates, Li2+2xCu1-2xO2-x. Effects of lithium content and thermal treatments. Journal of Applied Research and Technology; Vol. 21 Núm. 3, 2023; 352-366. Recuperado de https://repositorio.unam.mx/contenidos/4149325

245.1.0.a: Structural analysis of non-stoichiometric lithium cuprates, Li2+2xCu1-2xO2-x. Effects of lithium content and thermal treatments

502.#.#.c: Universidad Nacional Autónoma de México

561.1.#.a: Instituto de Ciencias Aplicadas y Tecnología, UNAM

264.#.0.c: 2023

264.#.1.c: 2023-06-27

653.#.#.a: Solid state reaction; lithium cuprate; non-stoichiometric compounds; Rietveld analysis

506.1.#.a: La titularidad de los derechos patrimoniales de esta obra pertenece a las instituciones editoras. Su uso se rige por una licencia Creative Commons BY-NC-SA 4.0 Internacional, https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode.es, para un uso diferente consultar al responsable jurídico del repositorio por medio del correo electrónico gabriel.ascanio@icat.unam.mx

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041.#.7.h: eng

520.3.#.a: Lithium cuprate (Li2CuO2) is being used for a wide range of applications due to its high lithium diffusion through the layer structure. Moreover, Li2+2xCu1-xO2-x non-stoichiometric material shows enhanced physicochemical properties. Therefore, lithium location understanding is highly important for lithium cuprate applications. This paper reports the structural coherence analysis, local and long atomic arrangement of Li2+2xCu1-xO2-x using X-ray diffraction (XRD), pair distribution function (PDF) and solid-state nuclear magnetic resonance (NMR) techniques. Li2CuO2, containing different excess quantities of lithium (from 0 to 60 at%), were synthesized by solid-state reaction. The synthesized ceramics presented nonstoichiometric structures, with Li2CuO2 type-structure. Two structural models were proposed to explain the high enhancement physicochemical properties of these ceramics; (i) the extra lithium atoms substitute copper sites, and (ii) lithium species occupy interstitial sites in thecrystalline structure. Additionally, further thermal treatments rearrange the non-stoichiometric crystalline structures into the stable Li2CuO2 phase.

773.1.#.t: Journal of Applied Research and Technology; Vol. 21 Núm. 3 (2023); 352-366

773.1.#.o: https://jart.icat.unam.mx/index.php/jart

022.#.#.a: ISSN electrónico: 2448-6736; ISSN: 1665-6423

310.#.#.a: Bimestral

300.#.#.a: Páginas: 352-366

264.#.1.b: Instituto de Ciencias Aplicadas y Tecnología, UNAM

doi: https://doi.org/10.22201/icat.24486736e.2023.21.3.1700

harvesting_date: 2023-11-08 13:10:00.0

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Artículo

Structural analysis of non-stoichiometric lithium cuprates, Li2+2xCu1-2xO2-x. Effects of lithium content and thermal treatments

Palacios, Luis; González, Gonzalo; Ovalle Encinia, Oscar; Lima, Enrique; Ramírez Meneses, Esther; Pfeiffer, Heriberto

Instituto de Ciencias Aplicadas y Tecnología, UNAM, publicado en Journal of Applied Research and Technology, y cosechado de Revistas UNAM

Licencia de uso

Procedencia del contenido

Cita

Palacios, Luis, et al. (2023). Structural analysis of non-stoichiometric lithium cuprates, Li2+2xCu1-2xO2-x. Effects of lithium content and thermal treatments. Journal of Applied Research and Technology; Vol. 21 Núm. 3, 2023; 352-366. Recuperado de https://repositorio.unam.mx/contenidos/4149325

Descripción del recurso

Autor(es)
Palacios, Luis; González, Gonzalo; Ovalle Encinia, Oscar; Lima, Enrique; Ramírez Meneses, Esther; Pfeiffer, Heriberto
Tipo
Artículo de Investigación
Área del conocimiento
Ingenierías
Título
Structural analysis of non-stoichiometric lithium cuprates, Li2+2xCu1-2xO2-x. Effects of lithium content and thermal treatments
Fecha
2023-06-27
Resumen
Lithium cuprate (Li2CuO2) is being used for a wide range of applications due to its high lithium diffusion through the layer structure. Moreover, Li2+2xCu1-xO2-x non-stoichiometric material shows enhanced physicochemical properties. Therefore, lithium location understanding is highly important for lithium cuprate applications. This paper reports the structural coherence analysis, local and long atomic arrangement of Li2+2xCu1-xO2-x using X-ray diffraction (XRD), pair distribution function (PDF) and solid-state nuclear magnetic resonance (NMR) techniques. Li2CuO2, containing different excess quantities of lithium (from 0 to 60 at%), were synthesized by solid-state reaction. The synthesized ceramics presented nonstoichiometric structures, with Li2CuO2 type-structure. Two structural models were proposed to explain the high enhancement physicochemical properties of these ceramics; (i) the extra lithium atoms substitute copper sites, and (ii) lithium species occupy interstitial sites in thecrystalline structure. Additionally, further thermal treatments rearrange the non-stoichiometric crystalline structures into the stable Li2CuO2 phase.
Tema
Solid state reaction; lithium cuprate; non-stoichiometric compounds; Rietveld analysis
Idioma
eng
ISSN
ISSN electrónico: 2448-6736; ISSN: 1665-6423

Enlaces