Predominant defects in semiconductor isovalent solid solutions: Pb1 –y(SexTe1 –x)y, Pb1 –y(SxTe1 –x)yand Pb1 –y(SxSe1 –x)y

Зломанов, В. П.; Demin, V. N.; Гаськов, А.М.

doi:10.1039/jm9920200031

Cited by 19 publications

(20 citation statements)

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“…In addition, most reported vanadium-based cathodes are synthesized by hydrothermal or annealing methods, and the products usually have high crystallinity. [16][17][18][19][20] The intercalation/ deintercalation of Zn 2+ in the crystal framework can only proceed along specic routes and is stored in certain active sites, resulting in sluggish reaction kinetics and insufficient specic capacity. And the specic capacity decays rapidly due to the collapse of the rigid crystal framework caused by "volume expansion" during repeated Zn 2+ intercalation.…”

Section: Introductionmentioning

confidence: 99%

A stepwise oxidation strategy for the synthesis of amorphous V₂O₅@V₂CT_xnanohybrid cathodes toward high-performance aqueous Zn-ion batteries

Wang

Zhang

et al. 2023

J. Mater. Chem. A

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Section: Introductionmentioning

confidence: 99%

A stepwise oxidation strategy for the synthesis of amorphous V₂O₅@V₂CT_xnanohybrid cathodes toward high-performance aqueous Zn-ion batteries

Wang

Zhang

et al. 2023

J. Mater. Chem. A

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“…Due to the successful optimization of the material composition, the SPU 1.2 /30%IL 0.5 ionogels achieved the highest Δ T sol and T lum among all reported thermochromic materials (Figure 3e). [ 23,45–57 ] As shown in Figure 3f, the thermochromic performance of the SPU 1.2 /30%IL 0.5 ionogel, including T lum , T sol , luminous modulation capability (Δ T lum ) and Δ T sol , were well maintained after 1000 cycles of heating to 40 °C and cooling to room temperature. Furthermore, the ionogel's thermochromic performance remained unchanged after 1000 cycles of stretching to 150% of its original length and releasing, being stored at −30 °C, 60 °C, 90% RH, and vacuum environments (relative vacuum pressure = −0.098 MPa) for 2 months, and 1000 cycles of 180° bending and flattening (Figure 3f).…”

Section: Resultsmentioning

confidence: 95%

Self‐Adhesive Self‐Healing Thermochromic Ionogels for Smart Windows with Excellent Environmental and Mechanical Stability, Solar Modulation, and Antifogging Capabilities

Guan

et al. 2023

Advanced Materials

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especially visible and near-infrared light), by dramatically and reversibly modulating their transparency upon exposure to an external stimulus, have attracted significant attention and have proved effective in saving building energy consumption. [2] To date, numerous responsive materials, such as inorganic oxides, organic photochromic dyes, inorganic nanoparticles, and hydrogels have been used to fabricate smart windows. [3,4] Compared with chromic materials that respond to electricity, mechanical force, or magnetic field, thermochromic materials that can be triggered by solar heating are more suitable for smart window applications, as they do not require additional manual intervention or energy consumption. [5] While thermochromic materials show great promise, some shortcomings limit their application in smart windows. [1] For instance, inorganic semiconductor oxides and dyes have unsatisfactory transparency, solar modulation capacity, and poor oxidation resistance. [1] On the other hand, emerging hydrogel-based thermochromic materials, such as poly N-isopropylacrylamide hydrogel, driven by the lower critical solution temperature (LCST) phenomenon, have attracted significant attention due to their high transparency and good solar modulation capability. [6] At temperatures lower than the LCST, water is uniformly dispersed in the polymer network, ensuring good transparency. As the temperature increases, favorable interactions between polymers and water molecules weaken, leading to phase separation that results in opacity. [7] However, these thermochromic hydrogels have inherent disadvantages of water freezing and evaporation. [8] As a result, they have issues concerning environmental stability, which limits their practical application in smart windows.Ionic liquids (ILs) are a class of room-temperature molten salts. [9] Ionogels, a new generation of gels, prepared by immobilizing ILs in 3D polymer networks, are semisolid materials that can retain vital properties of both ionic liquid and polymer networks. [10,11] Compared with hydrogels or organogels, ionogels have exceptional environmental stability that originates from the nonvolatility and wide liquid temperature range of ILs. [12][13][14] Current thermochromic materials used in smart windows still face challenges, such as poor mechanical and environmental stability, unsatisfactory solar modulation capacity, and low transparency. Herein, the first self-adhesive self-healing thermochromic ionogels with excellent mechanical and environmental stability, antifogging capability, transparency, and solar modulation capability by loading binary ionic liquids (ILs) into rational-designed selfhealing poly(urethaneurea) with acylsemicarbazide (ASCZ) moieties that have reversible and multiple hydrogen bonds are reported and their feasibility as smart windows with reliability and long service life is demonstrated. The selfhealing thermochromic ionogels can switch between transparent and opaque without leakage or shrinkage, by the constrained reversible phase separation of ...

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“…The reser voirs containing B and C source materials are con nected to a vessel containing (A 1 -x B x ) 1 -δ C 1 + δ by capillary tubes, which prevents rapid transport of com ponents B and C. Similar configurations can be used for melt or vapor growth of nonstoichiometric ternary compounds. At the same time, one can use a two component, two phase mixture, which ensures appro priate vapor pressures of both components at a con stant temperature [40,42]. [43,44].…”

Section: Nonstoichiometry Control During Crystal Growthmentioning

confidence: 99%

Key issues in the targeted synthesis of inorganic substances

Зломанов

2013

Inorg Mater

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Chemistry is a science concerned with conversion of substances. From the chemical point of view, a substance is an assemblage of interacting particles, which is characterized by four properties: composition, structure, type of chemical bonding, and particle size. A conversion of a substance is a change in one or several of its properties. Targeted synthesis is a way of controlling a conversion of a substance. This paper considers thermodynamic and kinetic issues in targeted synthesis that are associated with control over the composition, structure, characteristic features of chemical bonding, and particle size and, hence, with the identification of conditions for the preparation of a substance with tailored properties. The concept of pure substance is dis cussed, which is an important issue for materials research and inorganic chemistry. It is pointed out that the composition of compounds should be characterized not only by their stoichiometry and impurity concentra tion but also by the related concentrations of native defects and impurities. In connection with this, a defect classification is presented and defect formation processes and techniques for controlling the defect composi tion are analyzed. Statistical criteria for assessing the compositional homogeneity of a pure substance are con sidered.

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Predominant defects in semiconductor isovalent solid solutions: Pb_{1 –y}(Se_xTe_{1 –x})_y, Pb_{1 –y}(S_xTe_{1 –x})_yand Pb_{1 –y}(S_xSe_{1 –x})_y

Cited by 19 publications

References 10 publications

A stepwise oxidation strategy for the synthesis of amorphous V₂O₅@V₂CT_xnanohybrid cathodes toward high-performance aqueous Zn-ion batteries

A stepwise oxidation strategy for the synthesis of amorphous V₂O₅@V₂CT_xnanohybrid cathodes toward high-performance aqueous Zn-ion batteries

Self‐Adhesive Self‐Healing Thermochromic Ionogels for Smart Windows with Excellent Environmental and Mechanical Stability, Solar Modulation, and Antifogging Capabilities

Key issues in the targeted synthesis of inorganic substances

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Predominant defects in semiconductor isovalent solid solutions: Pb1 –y(SexTe1 –x)y, Pb1 –y(SxTe1 –x)yand Pb1 –y(SxSe1 –x)y

Cited by 19 publications

References 10 publications

A stepwise oxidation strategy for the synthesis of amorphous V2O5@V2CTxnanohybrid cathodes toward high-performance aqueous Zn-ion batteries

A stepwise oxidation strategy for the synthesis of amorphous V2O5@V2CTxnanohybrid cathodes toward high-performance aqueous Zn-ion batteries

Self‐Adhesive Self‐Healing Thermochromic Ionogels for Smart Windows with Excellent Environmental and Mechanical Stability, Solar Modulation, and Antifogging Capabilities

Key issues in the targeted synthesis of inorganic substances

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Product

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About

Predominant defects in semiconductor isovalent solid solutions: Pb_{1 –y}(Se_xTe_{1 –x})_y, Pb_{1 –y}(S_xTe_{1 –x})_yand Pb_{1 –y}(S_xSe_{1 –x})_y

A stepwise oxidation strategy for the synthesis of amorphous V₂O₅@V₂CT_xnanohybrid cathodes toward high-performance aqueous Zn-ion batteries

A stepwise oxidation strategy for the synthesis of amorphous V₂O₅@V₂CT_xnanohybrid cathodes toward high-performance aqueous Zn-ion batteries