Suppression of Fe-Cation Migration by Indium Substitution in LiFe2-xInxSbO6 Cathode Materials

Article Chemistry, Physical

Conversion of Li2FeSbO5 to the Fe(III)/Fe(V) Phase LiFeSbO5 via Topochemical Lithium Extraction

Xabier Martinez de Irujo-Labalde et al.

Summary: Reaction between Na2FeSbO5 and LiNO3 produces metastable phase Li2FeSbO5, which further reacts with NO2BF4 to yield LiFeSbO5. Li2FeSbO5 consists of alternating layers of Li2Fe2O5 and Li2Sb2O5 containing Fe3+ and Sb5+. LiFeSbO5 has stable Fe5+ centers.

CHEMISTRY OF MATERIALS (2022)

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Article Geosciences, Multidisciplinary

Advances of ferrous and ferric Mossbauer recoilless fractions in minerals and glasses

Hongluo L. Zhang

Summary: Mossbauer spectroscopy is used to characterize the proportions and coordination of iron in solid materials. The recoilless fraction is essential for accurate analysis. The study evaluates the recoilless fractions of iron-bearing minerals using the Debye model approximation. It finds significant differences between the recoilless fractions of ferric and ferrous iron, highlighting the need for corrections in the analysis of Mossbauer spectra.

GEOSCIENCE FRONTIERS (2022)

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Article Chemistry, Inorganic & Nuclear

The crystal structure of LiSc2SbO6

Steven Flynn et al.

Summary: The crystal structures of LiM2SbO6 were initially thought to be ordered variants of the LiSbO3 structure, but recent studies have shown that they are rutile-related structures with different symmetries. A new analysis suggests that LiSc2SbO6 has similarities with LiIn2SbO6 instead of LiSbO3, and differential thermal analysis reveals a second-order phase transition between 460 and 480 K.

JOURNAL OF SOLID STATE CHEMISTRY (2021)

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Article Nanoscience & Nanotechnology

Perspectives for next generation lithium-ion battery cathode materials

Samuel G. Booth et al.

Summary: Transitioning to electrified transport requires improvements in sustainability, energy density, power density, lifetime, and cost of lithium-ion batteries. The development of next-generation cathodes presents significant opportunities. This multifaceted challenge demands an interdisciplinary approach, leading to the establishment of academic and industrial consortia worldwide focusing on cathode development.

APL MATERIALS (2021)

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Editorial Material Multidisciplinary Sciences