Bimetallic Organic Gel for Effective Methyl Orange Dye Adsorption.

A bimetallic organic gel (MOG-Fe/Al) was synthesized through the solvothermal method. The gel state of the product obtained under optimized gel formation conditions is sufficient to carry 2 g of weight for a long time. Scanning electron microscopy (SEM), X-ray diffraction (XRD), Fourier transform infrared (FT-IR) spectroscopy, Brunauer-Emmett-Teller (BET) technique, and X-ray photoelectron spectroscopy (XPS) analysis confirmed the structures and morphologies of the synthesized materials.

Boosted Photocatalytic Performance for Antibiotics Removal with Ag/PW/TiO Composite: Degradation Pathways and Toxicity Assessment.

Photocatalyst is the core of photocatalysis and directly determines photocatalytic performance. However, low quantum efficiency and low utilization of solar energy are important technical problems in the application of photocatalysis. In this work, a series of polyoxometalates (POMs) [HPWO] (PW)-doped titanium dioxide (TiO) nanofibers modified with various amount of silver (Ag) nanoparticles (NPs) were prepared by utilizing electrospinning/photoreduction strategy, and were labelled as wt% Ag/PW/TiO (% Ag/PT, = 5, 10, and 15, respectively).

Sea-Cucumber-like Microstructure Polyoxometalate/TiO Nanocomposite Electrode for High-Performance Electrochromic Energy Storage Devices.

The key challenge in the practical application of electrochromic energy storage devices (EESDs) is the fabrication of high-performance electrode materials. Herein, we deposited K[La(HO)(α-PWO)] (PWLa) onto TiO nanowires (NW) to construct an NW-PWLa nanocomposite using a layer-by-layer self-assembly method. In contrast to the pure PWLa films, the nanocomposite exhibits enhanced electrochromic and electrochemical performance owing to the 3D sea-cucumber-like microstructure.

Porous polyoxotungstate/MXene hybrid films allowing for visualization of the energy storage status in high-performance electrochromic supercapacitors.

Electrochromic supercapacitors (ECSCs) have recently received growing attention for potential smart energy storage components in intelligent electronics. However, in the development of ECSCs, the design and assembly of high-performance electrode materials remain ongoing challenges. In this study, TiCT MXene and polyoxotungstate (PW) were deposited on TiO nanowires to construct a unique three-dimensional (3D) porous hybrid film, NW@MXene/PW, a convenient layer-by-layer self-assembly approach.

Vanadium-Substituted Dawson-Type Polyoxometalate-TiO Nanowire Composite Film as Advanced Cathode Material for Bifunctional Electrochromic Energy-Storage Devices.

Polyoxometalates (POMs) demonstrate potential for application in the development of integrated smart energy devices based on bifunctional electrochromic (EC) optical modulation and electrochemical energy storage. Herein, a nanocomposite thin film composed of a vanadium-substituted Dawson-type POM, i.e.

Wide-temperature rechargeable Li metal batteries enabled by an in-situ fabricated composite gel electrolyte with a hierarchical structure.

Lithium metal batteries (LMBs) are well recognized as promising next-generation high energy density batteries, but the uncontrollable Li dendrites growth and the volatilization/gas production of electrolytes, which become extremely worse at low and high temperatures, restrict their practical utilizations. In this work, a hierarchically structured polymerized gel electrolyte (HGE), which was composed of an inorganic (LiGaIn alloy and LiCl salt)/organic (polymerized tetrahydrofuran (THF)) hybrid layer and the bulk polymerized THF electrolyte, was proposed to achieve a steady performance of LMBs over a wide temperature range of -20-55 °C. The HGE fabrication can be completed within assembled cells with a simultaneously occurring replacement-polymerization-alloying reaction, which helps decrease the interfacial resistance and enhance the stability and ion diffusion under both low and high temperatures.

Tris(morpholinium) hexa-μ(3)-hydroxido-hexa-μ(2)-oxido-dodeca-oxidohexa-molybdenum(VI)chromate(III) tetra-hydrate.

In the title organic-inorganic hybrid compound, (C(4)H(10)NO)(3)[H(6)CrMo(6)O(24)]·4H(2)O, the Anderson-type [H(6)CrMo(6)O(24)](3-) polyoxoanion is centrosymmetric, with the Cr(III) ion lying on an inversion center. One of the two crystallographiclly independent morpholinium cations is half-occupied. Inter-molecular N-H⋯O and O-H⋯O hydrogen bonds link the cations, polyoxoanions and uncoordinated water mol-ecules.

Bis(ethyl-enediamine-κN,N')(nitrato-κO,O')cobalt(III) hydroxide nitrate.

The Co ion in the title salt, [Co(NO(3))(H(2)NCH(2)CH(2)NH(2))(2)](OH)(NO(3)), has oxidation state + III and is coordinated by four N atoms from two ethyl-enediamine mol-ecules and two O atoms from a nitrate anion in a distorted octa-hedral geometry. The charge of the complex cation is balanced by a hydroxide anion and a nitrate anion. The cations and anions are connected by N-H⋯O and O-H⋯O hydrogen bonds, resulting in a three-dimensional supra-molecular framework.

New approach to the synthesis of an organopolymolybdate polymer in aqueous media by linkage of multicarboxylic ligands.

The reaction of molybdates with multicarboxylic ligands resulted in the crystalline materials of [Na 8(Mo (VI) 10O 32EDTA)(H 2O) 35] n ( 1) and (NH 4) 8 n [Mo (VI) 10O 32PDTA] n (H 2O) 30 n ( 2) (EDTA = 1,2-diaminoethanetetraacetate; PDTA = 1,3-diaminopropanetetraacetate). In the two compounds, decamolybdate clusters are covalently linked by multicarboxylic ligands to form unusual meso-helical chains. For the first time, the synthesis of an organopolyoxometalate polymer is realized in aqueous media, which opens a green chemical approach to the fabrication of polyoxometalate-based polymers.

Cobalt(II)/nickel(II)-centered Keggin-type heteropolymolybdates: syntheses, crystal structures, magnetic and electrochemical properties.

New Keggin-type cobalt(II)/nickel(II)-centered heteropolymolybdates, (C3H5N2)6[Co(II)Mo12O40]10H2O (1) and (NH4)3(C4H5N2O2)3[Ni(II)Mo12O40] (2), were isolated and characterized by IR, UV-vis, single-crystal X-ray diffraction, thermogravimetric, magnetic, as well as electrochemical analyses. The polyanion in the two compounds displays the well-known alpha-Keggin structure, which is composed of four Mo3O13 units formed by edge-sharing octahedra. Four Mo3O13 units connect each other by vertices, and the Co(2+) or Ni(2+) is located in the center.

Unprecedented eight-connected self-catenated network based on heterometallic {Cu4V4O12} clusters as nodes.

An interesting eight-connected self-catenated metal-organic framework, based on bimetallic {Cu4V4O12} clusters as nodes, defines a new self-catenated topology for eight-connected networks and represents the first self-catenated framework using heterometallic clusters as nodes.