Results 1 to 10 of about 14,825 (221)

Enhanced proton conductivity in azole-functionalized three-dimensional crystalline covalent organic frameworks [PDF]

open access: yesNature Communications
Proton conduction pathways and mechanisms in covalent organic frameworks (COFs) have long been obscured by polycrystalline disorder. Here we report a solvent-free melt-phase post-synthetic modification (PSM) strategy that enables precise ...
Aiping Yao   +10 more
doaj   +2 more sources

Aerobic photoxidation of sulfides using unique hybrid polyoxometalate under visible light

open access: yesCatalysis Communications, 2021
A unique hybrid Polyoxometalate was synthesized, which can absorb visible light and perform photocatalytic activity. This Organic-Inorganic hybrid material was synthesized through attaching the organotin compound to the vacant polyoxometalate ...
Davud Karimian, Fatemeh Zangi
doaj   +1 more source

Comparative Catalytic Behavior of Prepared Cobalt or Iron Salt of Manganese Substituted Polyoxometalate Supported on Silica in Oxidation of Benzyl Alcohol [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2022
Cobalt and iron salt of mono manganese substituted Keggin polyoxometalate have been prepared and supported on silica as heterogeneous catalysts. The prepared compounds were completely characterized by conventional techniques such as FT-IR, ICP-OES, XRD ...
Farnoosh Ghaffarzadeh Anari   +3 more
doaj   +1 more source

Ce-mediated molecular tailoring on gigantic polyoxometalate {Mo132} into half-closed {Ce11Mo96} for high proton conduction

open access: yesNature Communications, 2023
Precise synthesis of polyoxometalates (POMs) is important for the fundamental understanding of the relationship between the structure and function of each building motif.
Xue-Xin Li   +11 more
doaj   +1 more source

State-of-the-art advances in the syntheses, structures, and applications of polyoxometalate-based metal–organic frameworks

open access: yesPolyoxometalates, 2023
Polyoxometalate-based metal–organic frameworks (PMOFs) as extended solids assembled from metal-oxide cluster units and metal–organic groups have drawn wide research attention in recent years due to the unique advantages of containing both polyoxometalate
Yan Zhang   +5 more
doaj   +1 more source

Binary Type-II Heterojunction K7HNb6O19/g-C3N4: An Effective Photocatalyst for Hydrogen Evolution without a Co-Catalyst

open access: yesNanomaterials, 2022
The binary type-II heterojunction photocatalyst containing g-C3N4 and polyoxoniobate (PONb, K7HNb6O19) with excellent H2 production activity was synthesized by decorating via a facile hydrothermal method for the first time.
Qi Song   +5 more
doaj   +1 more source

Construction of hydrogel composites with superior proton conduction and flexibility using a new POM-based inorganic–organic hybrid

open access: yesPolyoxometalates, 2022
Polyoxometalates (POMs) have attracted extensive interests as solid-state proton conductors due to their high conductivity and good thermal stability.
Yuxin Wang   +6 more
doaj   +1 more source

Enhanced Photocatalytic Hydrogen Production of the Polyoxoniobate Modified with RGO and PPy

open access: yesNanomaterials, 2020
The development of high-efficiency, recyclable, and inexpensive photocatalysts for water splitting for hydrogen production is of great significance to the application of solar energy.
Shiliang Heng   +7 more
doaj   +1 more source

Syntheses, crystal structures, and properties of four polyoxometalate-based metal–organic frameworks based on Ag(I) and 4,4′-dipyridine-N,N′-dioxide

open access: yesPolyoxometalates, 2022
Four new metal–organic frameworks ([Ag3(dpdo)3.5(DMF)(PW12O40)]∙H2O (1), [Ag3(dpdo)5(DMF)2(PW12O40)]∙2CH3OH (2), [Ag3(dpdo)5(DMF)2(PMo12O40)]∙4H2O (3), and H0.5[Ag4.5(dpdo)5(DMF)(BW12O40)]∙5H2O (4); dpdo = 4,4'-dipyridine-N,N'-dioxide) based on ...
Haiyan Li   +4 more
doaj   +1 more source

Metal–Organic Framework Integrating Ionic Framework and Bimetallic Coupling Effect for Highly Efficient Oxygen Evolution Reaction

open access: yesAdvanced Science, 2022
Metal–organic frameworks (MOFs) are recognized as promising electrocatalysts for the oxygen evolution reaction (OER) because of their permanent porosity and rich architectural diversity; however, ionic MOFs enabling fast ions exchange during OER are ...
Shulin Li   +9 more
doaj   +1 more source

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