An unprecedented polyoxometalate-encapsulated organo–metallophosphate framework as a highly efficient cocatalyst for CO₂ photoreduction

Abstract

The photocatalytic reduction of CO2 to chemical fuels is attractive for addressing both greenhouse effect and energy crisis, but the key challenge is the design and synthesis of photocatalyst with...

A hybrid borotungstate-coated metal–organic framework with supercapacitance, photocatalytic dye degradation and H2O2 sensing properties

“…The four peaks at 959.3, 903.8, 829.9, and 742.2 cm −1 can be attributed to W–O d , B–O a , W–O b , and W–O c from [BW 12 O 40 ] 5− . 51 Moreover, compared with the spectra of Ag 5 [BW 12 O 40 ] and the other three compounds ({Ag 5 BW 12 O 40 }@Ag-BTC-1, {Ag 5 BW 12 O 40 }@Ag-BTC-3, and {Ag 5 BW 12 O 40 }@Ag-BTC-4), the W–O d peak has a more pronounced shift. Also, the peaks in the {Ag 5 BW 12 O 40 }@Ag-BTC-2 spectrum corresponding to the H 3 BTC ligand show slight deviations compared to the peaks in the Ag-BTC spectrum (1738.8, 1624.6, 1433.8, and 1384.8 cm −1 ) 52 attributed to stretching vibrations.…”

Two 1D Anderson-Type Polyoxometalate-Based Metal–Organic Complexes as Bifunctional Heterogeneous Catalysts for CO2 Photoreduction and Sulfur Oxidation

“…Over the past few decades, the excess accumulation of carbon dioxide from the continued burning of limited fossil fuels has brought out serious greenhouse effects and energy scarcity problems. − Under such circumstances, carbon capture, utilization, and storage (CCUS) technology has been recognized as one of the most desirable pathways to address the above challenges. , Notably, in the condition of imitating natural photosynthesis, CO 2 can be used as a raw material to produce high-value-added chemicals (such as CO, CH 4 , and HCOOH), which is conducive to alleviating global warming and energy shortage. − However, resulting from the high chemical inertness, the process of converting CO 2 is a hard nut to crack . Thus, necessary actions should be taken to design and develop efficient photocatalysts for helping this CO 2 conversion process take place.…”

Efficient Visible-Light-Driven Hydrogen Production over Cu-Modified Polyoxotungstate Hybrids

“…Polyoxotungstates (POTs) are a class of well-defined metal-oxide clusters possessing unique physicochemical properties and potential applications in catalysis, , photochemistry, materials chemistry, , etc. Not only can these clusters be structurally decorated diversely, but they can also perform rapid and reversible multielectron transfer processes without structural alteration . These unique properties endow them with excellent photocatalytic behavior.…”

“…Not only can these clusters be structurally decorated diversely, but they can also perform rapid and reversible multielectron transfer processes without structural alteration. 14 These unique properties endow them with excellent photocatalytic behavior. However, there exist two thorny issues to be resolved: (1) the relatively low conduction band levels of individual POTs are not conducive to efficient hydrogen evolution reactions; 15,16 (2) pure POTs are not easily recycled as they are already readily soluble in a variety of organic solvents.…”