A series of POM-based compounds by tuning coordination groups and spacers of ligands: electrocatalytic, capacitive and photoelectrocatalytic properties

Article Nanoscience & Nanotechnology

Fe Foam-Supported FeS2-MoS2 Electrocatalyst for N2 Reduction under Ambient Conditions

Mengle Yang et al.

Summary: Efficient FeS2-MoS2 bimetallic hybrid materials were synthesized as electrocatalysts for electrochemical nitrogen reduction reaction, showing unique 3D porous structure and remarkable NH3 production rate.

ACS APPLIED MATERIALS & INTERFACES (2021)

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Article Chemistry, Inorganic & Nuclear

Isopolymolybdate-Based Cobalt/Nickel Coordination Polymers Constructed by V-Type N-Donor Ligands

Ya-Jie Shi et al.

Summary: Four novel isopolymolybdate-based coordination polymers have been synthesized under a hydrothermal method, showing different structural features and magnetic behaviors. Complexes 1 and 4 exhibit antiferromagnetic behaviors, while complexes 2 and 3 reveal spin-canting and metamagnetic behaviors, respectively.

INORGANIC CHEMISTRY (2021)

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Article Chemistry, Inorganic & Nuclear

A series of POM-based compounds constructed by piperazine and morpholine derivatives: Characterization, selective photocatalytic and electrochemical/fluorescence sensing properties

Xinyue Zhang et al.

Summary: By manipulating the N and O coordination donors in piperazine and morpholine derivatives, six POM-based compounds with diverse structures were synthesized. These compounds also exhibit unique electrochemical and selective photocatalytic properties. Additionally, Compound 3 shows potential as a fluorescence sensor for detecting Hg2+.

JOURNAL OF SOLID STATE CHEMISTRY (2021)

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Article Chemistry, Inorganic & Nuclear

A Copper-Containing Polyoxometalate-Based Metal-Organic Framework as an Efficient Catalyst for Selective Catalytic Oxidation of Alkylbenzenes

Baijie Xu et al.

Summary: The copper-containing polyoxometalate-based metal-organic framework HENU-7 showed excellent catalytic performance for the oxidation of diphenylmethane, with high conversion rate and selectivity to benzophenone. In addition, the material demonstrated stability for multiple reuses and the ability to catalyze the oxidation of different benzylic compounds.

INORGANIC CHEMISTRY (2021)

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Article Chemistry, Inorganic & Nuclear

Structural and Magnetical Studies of Mixed-Valence Hexavanadate Hybrids: How Organic Ligands Affect the Magnetism of Polyoxometalates?

Pingfan Wu et al.

Summary: This study illustrates the influence of organic ligands on magnetic structure and behavior using a mixed-valence Lindqvist-type hexavanadate as a research platform. The introduction of organic ligands can modify the crystal packing manners of the derivatives, leading to changes in the interaction between magnetic units. The work demonstrates that organic functionalization can significantly affect the magnetism of polyoxometalates by adjusting the distance and location of the magnetic fractions.

INORGANIC CHEMISTRY (2021)

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Article Chemistry, Inorganic & Nuclear

Cu/Ag Complex Modified Keggin-Type Coordination Polymers for Improved Electrochemical Capacitance, Dual-Function Electrocatalysis, and Sensing Performance

Xingzhi Liu et al.

Summary: The introduction of different metal-organic units into the {PMo12} polyoxometalate system resulted in three porous coordination polymers with enhanced capacitance performance, cyclic stability, and conductivity when compared to traditional POM electrode materials. This enhancement is attributed to the additional redox centers, stable porous structures, and improved ion/electron transfer efficiency provided by the metal-organic units. Additionally, the compounds exhibit excellent electrocatalytic activity and compound 2 shows outstanding sensing performance in detecting AA and H2O2.

INORGANIC CHEMISTRY (2021)

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Article Chemistry, Inorganic & Nuclear

Two new polyoxometalate-based metal-organic complexes for the detection of trace Cr(VI) and their capacitor performance

Qian-Qian Liu et al.

Summary: Two new Keggin-type polyoxometalate-based metal-organic complexes were synthesized using a hydrothermal/solvothermal method, with one forming a 2D layered structure and the other forming a 3D supramolecular framework. The carbon paste electrodes modified by these complexes can be used as electrochemical sensors to detect trace Cr(VI) with detection limits lower than the maximum allowable concentration specified by the World Health Organization for drinking water.

DALTON TRANSACTIONS (2021)

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Article Chemistry, Multidisciplinary

Improving the photocatalytic H2 evolution activity of Keggin polyoxometalates anchoring copper-azole complexes

Qingbo Shen et al.

Summary: In this study, two new POM-based materials were developed for photocatalytic H-2 evolution, with compound 1 showing significantly higher efficiency compared to compound 2 and bare GeW12 polyanions. The improved performance of compound 1 is attributed to the formation of stable heteropoly blue species, differences in reduction potentials, and good dispersion of GeW12 polyanions.

GREEN CHEMISTRY (2021)

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Article Chemistry, Multidisciplinary

A series of A- and B-type Anderson compounds with Al, Te and Cr as centers by tuning different ligands: syntheses, electrochemical, photocatalytic and CO2RR properties

Jun Ying et al.

Summary: A series of new Anderson-based compounds modified by multi-nuclear metal clusters were synthesized and showed promising electrocatalytic and catalytic performances. Compound 3 exhibited the best photocatalytic activity among the synthesized compounds. The compounds also showed potential for catalyzing organic dyes and carbon dioxide.

CRYSTENGCOMM (2021)

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Article Chemistry, Multidisciplinary

Multifunctional photoelectric sensors and catalysts for CO2RR and Cr(vi) solution based on a series of POM-based materials

Chen Wang et al.

Summary: Five new compounds based on Keggin structure were synthesized through traditional hydrothermal methods, which can serve as photoelectric multifunctional sensors, electrochemical sensors, and fluorescent sensors, as well as catalysts for the reduction of CO2 and Cr(VI) with high catalytic activities.

CRYSTENGCOMM (2021)

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Article Chemistry, Inorganic & Nuclear

Synthesis, structure, electrochemistry and magnetism of cobalt-, nickel- and zinc-containing [M4(OH)3(H2O)2(α-SiW10O36.5)2]13- (M = Co2+, Ni2+, and Zn2+)

Ali Haider et al.

Summary: The interaction of trilacunary 9-tungstosilicate with cobalt(ii), nickel(ii) and zinc(ii) ions in aqueous medium led to the formation of M-4-containing heteropolytungstates. Electrochemical studies showed oxidation of Co2+ ions to Co3+ and magnetic measurements revealed paramagnetism with complex ferromagnetic and antiferromagnetic interactions in the products.

DALTON TRANSACTIONS (2021)

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Article Chemistry, Applied