Recent advances on the synthesis, structure, and properties of polyoxotantalates

Abstract

Polyoxotantalates (POTas), as an important branch of polyoxometalates (POMs), remain largely undeveloped compared with other members of the POM family including polyoxovanadates, polyoxotungstates, polyoxomolybdates and polyoxoniobates. Over the past decades, searching for feasible strategies to develop new POTas has attracted continuous interest due to their promising applications in fields of photo/electrocatalysis, ion-conduction, environmental protection, magnetism, and so on. In this review, the development of POTas is summarized, including their synthetic methods, crystal structures, physicochemical properties, and potential applications. Additionally, synthetic challenges and prospects for POTas are also discussed. It is hoped that this review will be of reference value for the further development of POTas.

A Giant Heterometallic Polyoxometalate Nanocluster for Enhanced Brain‐Targeted Glioma Therapy

“…[1][2][3] The fabrication of such nanoclusters involves in the orderly organization of highnuclearity metal ions into intricate nanoscale macromolecules. [4,5] Polyoxometalates (POMs) are a huge family of nanosized discrete metal oxide clusters with variable compositions, structures, nuclearity, and charge diversity, [6][7][8][9][10] engendering their unique merits in biomedicines, [11][12][13][14][15][16] catalysis, [17][18][19][20][21] biomimetics, [22] molecular magnetism, [23] and energy fields. [24,25] Among POMs, giant artificial POM nanoclusters, possessing huge volume and allowing to flexibly and precisely adjust atomic compositions and sizes, engender incomparable advantages in diverse fields.…”

A Giant Heterometallic Polyoxometalate Nanocluster for Enhanced Brain‐Targeted Glioma Therapy

“…[1][2][3] The fabrication of such nanoclusters involves in the orderly organization of highnuclearity metal ions into intricate nanoscale macromolecules. [4,5] Polyoxometalates (POMs) are a huge family of nanosized discrete metal oxide clusters with variable compositions, structures, nuclearity, and charge diversity, [6][7][8][9][10] engendering their unique merits in biomedicines, [11][12][13][14][15][16] catalysis, [17][18][19][20][21] biomimetics, [22] molecular magnetism, [23] and energy fields. [24,25] Among POMs, giant artificial POM nanoclusters, possessing huge volume and allowing to flexibly and precisely adjust atomic compositions and sizes, engender incomparable advantages in diverse fields.…”

Nanostructured Polyoxometalate-Based Heterogeneous Electrode Materials for Electrochemical Sensing of Glucose

“…Polyoxometalates (POMs) are a versatile group of molecular metal oxides formed by early transition metal (TM) centers in high oxidation states (Mo V , Mo VI , W VI , V V , Nb V , and Ta V ) by sharing oxygen atom bridges. , Lacunary POM units can combine with first-row TM cations (Cu, Fe, Mn, Co, Ni, etc.) to form TM-substituted POMs. , POMs are kind of electronic sponges that display efficient, multistep, fast, and reversible multielectron transfer characteristics. − They exhibit many properties in various chemical reactions, such as strong Bro̷nsted acidity, high proton mobility, high solubility in various solvents, and resistance to hydrolysis and oxidative degradation in solutions. − Owing to the above advantages, POM-based materials have attracted extensive interest in the fields of catalysis, materials science, medicine, industry, and others. It should be noted that one of the new orientations in the development of POM-based materials is the use of the electrochemical ability of POMs to construct electrochemical sensors.…”