En route to artificial photosynthesis: the role of polyoxometalate based photocatalysts

Abstract

As a consequence of increasing global energy demand and depleting fossil fuels, artificial photosynthesis, i.e., subsequent photocatalytic water oxidation and CO2 reduction, has become significant for providing renewable energy. To...

Proton Affinity in the Chemistry of Beta-Octamolybdate: HPLC-ICP-AES, NMR and Structural Studies

“…In the chemistry of group 6 polyoxometalates, the polyoxomolybdates are significantly more labile than the polyoxotungstates, thus making researchers favor the latter in their studies of POM chemistry. However, several studies of polyoxomolybdates’ reactivity [ 39 ] and catalytic performance (electron transfer reactions) appeared [ 40 , 41 , 42 , 43 , 44 , 45 ]. One of the central complexes in this chemistry is (Bu 4 N) 4 [β-Mo 8 O 26 ] ( Scheme 1 ), which is a standard precursor of all reactions in organic media, leading to a huge number of materials with different properties [ 46 , 47 , 48 , 49 ].…”

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.…”

Three photochromic materials based on POMs and viologens for UV probing, visual detection of metal ions and amine detection

“…1,2 Their enormous diversity in composition and structure allows them to exhibit good oxidation/reduction and photo-activity and excellent stability, which can be used in many fields such as electrochemistry, magnetism, materials science, catalysis, medicine and photochemistry. [3][4][5][6][7][8][9][10][11][12][13] The negative charge on the surface of a polyoxometalate is stable and its solubility is good. The ability of POMs to reversibly accept and release electrons through valence bond changes in the metal center is one of their most important properties and POMs can be widely used in photochromic materials.…”