2017
DOI: 10.1021/acs.cgd.7b00146
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Chemical Intercalations in Layered Transition Metal Chalcogenides: Syntheses, Structures, and Related Properties

Abstract: Transition metal chalcogenides (TMChs) have recently attracted a great deal of interest in the chemical and physical research fields. These compounds have a common crystal structure: they usually consist of two-dimensional or quasi-two-dimensional layers stacked along the direction perpendicular to the layers. The combination between layers is generally by van der Waals interaction or weak chemical bonding, making the layered chalcogenides potential hosts for intercalation. Alkali metals, alkaline earths, rare… Show more

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Cited by 37 publications
(22 citation statements)
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References 131 publications
(310 reference statements)
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“…Binary tetragonal iron sulfide and selenide exhibit superconductivity with critical temperatures ( T c ) below 10 K. The layered structure makes these compounds suitable candidates for intercalation of guest species which helps tune their properties. Many researchers have explored layered binary iron chalcogenides as parent compounds to understand their intercalation chemistry and structure–property relationships. Increasing the interlayer distance and valence electron concentration by the introduction of electropositive cations such as Li + , Na + , K + , Ca 2+ , Sr 2+ , or Ba 2+ raises the T c to 30–46 K. Intercalation of LiFe­(OH) layers between FeSe layers gives rise to layered materials with magnetic ordering at ∼12 K . Superconducting critical temperatures exceeding 40 K have been achieved by displacing Fe atoms from the LiFe­(OH) layers to occupy Fe site vacancies in the selenide layers. , While superconducting phases containing alkali metals and ammonia have been reported, there are few detailed structural reports for such compounds.…”
Section: Introductionmentioning
confidence: 99%
“…Binary tetragonal iron sulfide and selenide exhibit superconductivity with critical temperatures ( T c ) below 10 K. The layered structure makes these compounds suitable candidates for intercalation of guest species which helps tune their properties. Many researchers have explored layered binary iron chalcogenides as parent compounds to understand their intercalation chemistry and structure–property relationships. Increasing the interlayer distance and valence electron concentration by the introduction of electropositive cations such as Li + , Na + , K + , Ca 2+ , Sr 2+ , or Ba 2+ raises the T c to 30–46 K. Intercalation of LiFe­(OH) layers between FeSe layers gives rise to layered materials with magnetic ordering at ∼12 K . Superconducting critical temperatures exceeding 40 K have been achieved by displacing Fe atoms from the LiFe­(OH) layers to occupy Fe site vacancies in the selenide layers. , While superconducting phases containing alkali metals and ammonia have been reported, there are few detailed structural reports for such compounds.…”
Section: Introductionmentioning
confidence: 99%
“…Comparatively, solution-based synthesis has been considered to be a powerful and industry-friendly approach for obtaining various metal chalcogenide materials. Currently, there are a number of review papers on metal chalcogenide materials for thermoelectric, photovoltaic, energy storage, electrocatalytic, and photocatalytic applications, some of which involve a specific method for preparation of these materials [6][7][8][9][10][11][12][13][14][15][16][17]. However, there is no comprehensive summary on solution-based synthesis and processing of metal chalcogenide materials for thermoelectric applications.…”
Section: Introductionmentioning
confidence: 99%
“…1,2 The metal or metallic oxide could be intercalated between the layers, which could provide carrier transfer to the framework. 3 Because of the different numbers of d electrons that fill up the bands to different levels, various properties have been discovered with different TM species, such as the unconventional superconductivity in ferric compounds, 4−7 thermal power performance in copper selenides, 8,9 and diverse metamagnets in Co-based families. 10−13 Very recently, spin-glass behavior and long-range antiferromagnetic ordering were reported in some layered TMXs with mixed occupation at TM sites in the structure (KLiFeSe 2 , KFeCuTe 2 , etc.).…”
Section: Introductionmentioning
confidence: 99%
“…In recent years, LD transition-metal pnictides/chalcogenides (TMXs) have attracted a great deal of attention in materials research fields because the correlated d electrons are believed to produce novel electromagnetic properties. Concerning the quasi-two-dimensional (2D) materials, the transition metal (TM) and X (X = S, Se, P, Te, and As) are usually bonded covalently to form a layered framework. , The metal or metallic oxide could be intercalated between the layers, which could provide carrier transfer to the framework . Because of the different numbers of d electrons that fill up the bands to different levels, various properties have been discovered with different TM species, such as the unconventional superconductivity in ferric compounds, thermal power performance in copper selenides, , and diverse metamagnets in Co-based families. Very recently, spin-glass behavior and long-range antiferromagnetic ordering were reported in some layered TMXs with mixed occupation at TM sites in the structure (KLiFeSe 2 , KFeCuTe 2 , etc.…”
Section: Introductionmentioning
confidence: 99%