Topochemical molten salt synthesis for functional perovskite compounds

Li, Lihong; Deng, Jinxia; Chen, Jun; Xing, Xianran

doi:10.1039/c5sc03521j

Cited by 77 publications

(62 citation statements)

References 93 publications

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“…The MSM is widely studied for the synthesis of nanomaterials, such as graphene and perovskite, spinel and monoclinic oxides31323334. The key feature of our method is the direct use of naked ionized ions without hydration in the molten state salt to quickly induce the growth of 2D metal oxides and hydroxides.…”

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confidence: 99%

Rapid mass production of two-dimensional metal oxides and hydroxides via the molten salts method

et al. 2017

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Because of their exotic electronic properties and abundant active sites, two-dimensional (2D) materials have potential in various fields. Pursuing a general synthesis methodology of 2D materials and advancing it from the laboratory to industry is of great importance. This type of method should be low cost, rapid and highly efficient. Here, we report the high-yield synthesis of 2D metal oxides and hydroxides via a molten salts method. We obtained a high-yield of 2D ion-intercalated metal oxides and hydroxides, such as cation-intercalated manganese oxides (Na0.55Mn2O4·1.5H2O and K0.27MnO2·0.54H2O), cation-intercalated tungsten oxides (Li2WO4 and Na2W4O13), and anion-intercalated metal hydroxides (Zn5(OH)8(NO3)2·2H2O and Cu2(OH)3NO3), with a large lateral size and nanometre thickness in a short time. Using 2D Na2W4O13 as an electrode, a high performance electrochemical supercapacitor is achieved. We anticipate that our method will enable new path to the high-yield synthesis of 2D materials for applications in energy-related fields and beyond.

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confidence: 99%

Rapid mass production of two-dimensional metal oxides and hydroxides via the molten salts method

et al. 2017

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“…In this approach, partial structural conversion is obtained by insertion, deletion, or exchange of individual atoms, with the retention of morphological features . Several 2D nonlayered materials, including metal nitrides, carbides, and perovskites, have been successfully synthesized by using the topochemical transformation method, for example, the salt‐templating method, which utilizes salt microcrystals as the substrate/template to guide the growth of the oxide facet along the crystallographic plane of the salt at an elevated temperature ( Figure e) …”

Section: Synthesis Of 2d Materialsmentioning

confidence: 99%

Two‐Dimensional Electrocatalysts for Efficient Reduction of Carbon Dioxide

Zhang

Guo

et al. 2019

ChemSusChem

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Two‐dimensional (2D) materials are attractive catalysts for the electrochemical reduction of carbon dioxide reaction (eCO2RR) by virtue of their tunable atomic structures, abundant active sites, enhanced conductivity, suitable binding affinity to carbon dioxide and/or reaction intermediates, and intrinsic scalability. Herein, recent advances in 2D catalysts for the eCO2RR are reviewed. Structural features and properties of 2D materials that contribute to their advanced electrocatalytic properties are summarized, and strategies for enhancing their activity and selectivity for the eCO2RR are reviewed. Prospects and challenges of applications of 2D catalysts for the eCO2RR on an industrial scale are highlighted.

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“…[33] As imilar solution-mediatedt opotactic transformation from H 1.08 Ti 1.73 O 4 to BaTiO 3 was reported by Feng et al [34] Here, Ba 2 + ions can migrate into the crystal bulk through the interlayer pathway and react with the TiO 6 octahedral layers of H 1.08 Ti 1.73 O 4 in the crystal bulk to form BaTiO 3 in site. [35] To design such hierarchicalm aterials with visible-light . [35] To design such hierarchicalm aterials with visible-light .…”

Section: Topotactic Transformation In Epitaxial Growthmentioning

confidence: 99%

“…[34] Simultaneously,t he topochemical molten salt synthesis promoted as one of the strategic approaches to preparef unctional perovskite structure with dimensionalm orphology and pure phase. [35] To design such hierarchicalm aterials with visible-light response, the labile hydride strategy of topotactic reactioni s becominga na lternative way for appropriately band gap narrowing.K ageyama et al developedt opochemical nitridation, [29c, 36] that is, anion diffusion to reach the terminal oxynitride startedf rom perovskite BaTiO 3 ,i nw hicht he lability of H À in the oxyhydride allows H À /N 3 À exchange to occur by lowtemperature ammonolysis to yield BaTiO 3Àx N 2x/3 via mixed O-H-Ni ntermediates (Figure 6b). Therefore, the topotactic transformation with facile energy level modulation is rapidly expanding in scope of design efficient visible-light responsep hoto-(electronic)catalystso fv arious oxynitride and even al arge number of mixed anionic transitionm etal oxides with versatile morphologies.…”

Section: Topotactic Transformation In Epitaxial Growthmentioning

confidence: 99%

The Development of Functional Mesocrystals for Energy Harvesting, Storage, and Conversion

Zhang

Tachikawa

Fujitsuka

et al. 2017

Chemistry A European J

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Higher-ordered semiconductors have attracted extensive research interest as an adopted engineering for active solar energy harvesting, storage, and conversion. It is well-known that the effective separation and anisotropic migration of photogenerated charges are the basic driven force required for superior efficiency. However, the morphology and stoichiometric variation of these semiconductors play essential roles in their physicochemical properties of bulk and surface, especially for efficient interparticle or interfacial charge transfer. To this point, the strategy of controlling the topotactic transformation toward superstructures with optimized functionality is preferable for a wide range of optoelectronic and catalytic engineering applications. In this Minireview, we provide an overview of the crystal orientation, synthetic engineering, functional applications, and spatial and temporal charge dynamics in TiO mesocrystals and others. The viewpoint of in-depth understanding of the structure-related kinetics would offer an opportunity for design of versatile mesocrystal semiconductors sought-after for potential applications.

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Topochemical molten salt synthesis for functional perovskite compounds

Abstract: This report reviews various topochemical molten salt synthesis (TMSS) reactions and their applications in fulfilling the demand for the tunable morphology of perovskite materials.

Cited by 77 publications

References 93 publications

Rapid mass production of two-dimensional metal oxides and hydroxides via the molten salts method

Rapid mass production of two-dimensional metal oxides and hydroxides via the molten salts method

Two‐Dimensional Electrocatalysts for Efficient Reduction of Carbon Dioxide

The Development of Functional Mesocrystals for Energy Harvesting, Storage, and Conversion

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