The DOI matches its Crossref record; 21 of the 21 references it cites were found in a registry or an index.
Li 6 ALa 2 Nb 2 O 12 (A=Ca, Sr, Ba): A New Class of Fast Lithium Ion Conductors with Garnet‐Like Structure
Abstract
Garnet‐like structured metal oxides with the general formula Li 6 ALa 2 Nb 2 O 12 (A=Ca, Sr, Ba) have been prepared by solid‐state reaction using appropriate amounts of corresponding metal oxides, nitrates, and hydroxides. The powder X‐ray diffraction data reveal that Li 6 ALa 2 Nb 2 O 12 compounds are isostructural with the parent compound Li 5 La 3 Nb 2 O 12 . The cubic lattice parameter was found to increase with increasing size of the alkaline earth ions. The grain size decreases considerably with the substitution of La by the alkaline earth elements under the same preparation conditions. The Ca‐substituted compound exhibits both bulk and major grain boundary contributions to the total resistance, while the Sr‐ and Ba‐substituted compounds show mainly bulk resistance with a rather small grain boundary contribution (∼14% of the total resistance at 20°C) with further decrease with increasing temperature. In comparison, the ionic conductivity decreases with decreasing ionic radius of the alkaline earth elements. Among the investigated compounds, the Ba‐compound Li 6 BaLa 2 Nb 2 O 12 shows the highest ionic conductivity of 6 × 10 −6 S/cm at room temperature (22°C) and lowest activation energy of 0.44 eV compared with 0.55 and 0.50 eV for the corresponding Ca‐ and Sr‐ compounds, respectively. The ionic conductivity is comparable with that of parent Li 5 La 3 Nb 2 O 12 and other fast lithium ion conductors known so far.
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Cites
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Self-citationA Stable Thin‐Film Lithium Electrolyte: Lithium Phosphorus Oxynitride
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Novel Fast Lithium Ion Conduction in Garnet‐Type Li 5 La 3 M 2 O 12 (M = Nb, Ta)
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Cited by
Fast Lithium Ion Conduction in Garnet‐Type Li7La3Zr2O12
Murugan, R., Thangadurai, V., & Weppner, W. (2007) · Angewandte Chemie International Edition · doi:10.1002/anie.200701144 · Cited by 3,250
Self-citationGarnet-type solid-state fast Li ion conductors for Li batteries: critical review
Thangadurai, V., Narayanan, S., & Pinzaru, D. (2014) · Chemical Society Reviews · doi:10.1039/c4cs00020j · Cited by 1,534
Self-citationGao, Z., Sun, H., Fu, L., Ye, F., Zhang, Y., Luo, W., & Huang, Y. (2018) · Advanced Materials · doi:10.1002/adma.201705702 · Cited by 1,300
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High lithium ionic conductivity in the garnet-type oxide Li7−X La3(Zr2−X, NbX)O12 (X=0–2)
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Metadata
- Authors
- Thangadurai, V., & Weppner, W.
- Venue
- Journal of the American Ceramic Society
- Publisher
- Wiley
- Published
- 2005-02
- Volume
- 88
- Issue
- 2
- Pages
- 411-418
- ISSN
- 0002-7820 (ISSN-L)
- 1551-2916
- OpenAlex
- W2030815655
- Cited by
- 269
- References
- 21
- FWCI
- 6.99
- Type
- journal article
- Language
- en
- Open access
- closed
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- Thangadurai, V., & Weppner, W. (2005). Li 6 ALa 2 Nb 2 O 12 (A=Ca, Sr, Ba): A New Class of Fast Lithium Ion Conductors with Garnet‐Like Structure. Journal of the American Ceramic Society. https://doi.org/10.1111/j.1551-2916.2005.00060.x
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