In situ immobilization of Ag nanoparticles on Keggin heteropoly blue microtubes

Shen, Yan; Peng, Jun; Zhang, Huanqiu; Chen, Changyun; Zhang, Fang; Bond, Alan M.

doi:10.1039/c1jm10114e

Cited by 12 publications

(4 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…On the other hand, organic ligands play important roles in adjusting the construction of POM-based hybrid assemblies. They are important reducing agents to reduce Mo VI into Mo V centers in the formation of reduced POM-based hybrid . They can lead to the condensation of the Mo VI centered polyhedra in solution through the establishment of hydrogen-bonding interactions with the soluble intermediaries .…”

Section: Introductionmentioning

confidence: 99%

Organic–Inorganic Hybrid Materials Based on Basket-like {Ca⊂P₆Mo₁₈O₇₃} Cages

Zhang

et al. 2015

Inorg. Chem.

View full text Add to dashboard Cite

Four basket-like organic-inorganic hybrids, formulated as [{Cu(II)(H2O)2}{Ca4(H2O)4(HO0.5)3(en)2}{Ca⊂P6Mo4(V)Mo14(VI)O73}]·7H2O (1), (H4bth)[{Fe(II)(H2O)}{Ca⊂P6Mo18(VI)O73}]·4H2O (2), (H2bih)3[{Cu(II)(H2O)2}{Ca⊂P6Mo2(V)Mo16(VI)O73}]·2H2O (3), (H2bib)3[{Fe(II)(H2O)2}{Ca⊂P6Mo2(V) Mo16(VI)O73}]·4H2O (4), (bth = 1,6-bis(triazole)hexane; bih = 1,6-bis(imidazol)hexane; bib = 1,4-bis(imidazole)butane) have been hydrothermally synthesized and fully characterized. Compounds 1-4 contain polyoxoanion [Ca⊂P6Mon(V)Mo18-n(VI)O73]((6+n)-) (n = 0, 2, or 4) (abbreviated as {P6Mo18O73}) as a basic building block, which is composed of a "basket body" {P2Mo14} unit and a "handle"-liked {P4Mo4} fragment encasing an alkaline-earth metal Ca(2+) cation in the cage. Compound 1 exhibits an infrequent 2D layer structure linked by the Cu(H2O)2 linker and an uncommon tetranuclear calcium complex, while compound 2 is 8-connected 2-D layers connected by binuclear {Fe2(H2O)3} segaments, which are observed for the first time as 2-D basket-like assemblies. Compounds 3 and 4 are similar 1D Z-typed chains bonded by M(H2O)2 units (M = Cu for 3 and Fe for 4). The optical band gaps of 1-4 reveal their semiconductive natures. They exhibit universal highly efficient degradation ability for typical dyes such as methylene blue, methyl orange, and rhodamine B under UV light. The lifetime and catalysis mechanism of the catalysts have been investigated. The compounds also show good bifunctional electrocatalytic behavior for oxidation of amino acids and reduction of NO2(-).

show abstract

Section: Introductionmentioning

confidence: 99%

Organic–Inorganic Hybrid Materials Based on Basket-like {Ca⊂P₆Mo₁₈O₇₃} Cages

Zhang

et al. 2015

Inorg. Chem.

View full text Add to dashboard Cite

show abstract

“…As a unique class of metalloxide clusters, heteropoly blues with deep blue color, have recently been employed as inorganic building units for constructing supramolecular hybrid arrays with various organic ligands or metal–organic coordination fragments. − The kinds of mixed-valence molybdates or tungstates are obtained by one (or more)-electron reduction of the corresponding Mo VI and W VI polyoxoanions. The added electrons could be either localized on a metal center or delocalized as “extra” electrons over several metal centers.…”

Section: Introductionmentioning

confidence: 99%

“…On the other hand, heteropoly blues can release a defined number of their blue electrons at appropriate redox ambiance, so they are potential reducing agents and exhibit interesting mixed-valence electron delocalization or electrochemical properties that are related to the electron-transfer reactions within the clusters . In addition, the redox-active nature of molybdenum or tungsten in such POM could provide potentially new types of catalyst and magnetic systems. , …”

Section: Introductionmentioning

confidence: 99%

“…To date, many organic–inorganic hybrids based on heteropoly blues building blocks have been synthesized and studied. However, it is worth noting that most of these studies focus on classical heteropolyanions, such as the Keggin-type, the Wells–Dawson heteropoly blues, and their derivatives. Compared with classical heteropoly blues, the unclassical mixed-valence compounds have been far unexplored for their lability in solution. , In particular, the basket-like {P 6 Mo 18 O 73 } cages are still less common.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Assembly of Organic–Inorganic Hybrid Supramolecular Materials Based on Basketlike {M⊂P₆Mo₁₈O₇₃} (M = Ca, Sr, Ba) Cage and Transition-Metal Complex

Bin

et al. 2012

Inorg. Chem.

View full text Add to dashboard Cite

Eight members of basketlike mixed-valent compounds, formulated as {H(3)O}(2){Fe(III)(2,2'-bpy)(3)}(6){Sr⊂P(6)Mo(V)(4)Mo(VI)(14)O(73)}(2)·9H(2)O (1), {H(2)(4,4'-bpy)}(5){[Ni(4,4'-bpy)(H(2)O)(3)](2)[Ni(H(2)O)(2)][Sr⊂P(6)Mo(V)(2)Mo(VI)(16)O(73)](2)}·12H(2)O (2), {Cu(2)(bim)(4)(H(2)O)}(2){[Cu(bim)(2)](2)[Cu(bim)(H(2)O)](2)Cu(H(2)O)(2)[Sr⊂P(6)Mo(V)(3)Mo(VI)(15)O(73)](2)}·16H(2)O (3), {H(3)O}(4){[Cd(phen)(2)](2)Sr(H(2)O)(5)[Sr⊂P(6)Mo(V)(4)Mo(VI)(14)O(73)]}·H(2)O (4), {Cu(bim)(2)} {[Cu(bim)(2)](2)[Cu(Hbim)(H(2)O)(2)][Ca⊂P(6)Mo(V)(3)Mo(VI)(15)O(73)]}·9H(2)O (5), {[Cu(2,2'-bpy)(H(2)O)](4)[Ca⊂P(6)Mo(V)(2)Mo(VI)(16)O(73)]}·4H(2)O (6), {[Cu(2,2'-bpy)(H(2)O)](4)[Sr⊂P(6)Mo(V)(2)Mo(VI)(16)O(73)]}·8H(2)O (7), and {[Cu(2,2'-bpy)(H(2)O)](4)[Ba⊂P(6)Mo(V)(2)Mo(VI)(16)O(73)]}·8H(2)O (8), have been hydrothermally synthesized and structurally characterized via elemental analysis, thermogravimetry (TG), infrared (IR) spectroscopy, ultraviolet-visible light (UV-vis) spectroscopy, X-ray photoelectron spectroscopy (XPS), and single-crystal X-ray diffraction (XRD). The structural analysis shows that all the compounds contain basket-shaped polyoxoanions [M⊂P(6)Mo(V)(n)Mo(VI)(18-n)O(73)]((6+n)-) (M = Ca, Sr, Ba; n = 2, 3, or 4) (abbreviated as {P(6)Mo(18)O(73)}) as building units, which consists of a tetravacant γ-Dawson-type{P(2)Mo(14)} unit and a "handle"-shaped {P(4)Mo(4)} segment encapsulating a single alkaline-earth metals cation M(2+) in the central cavity. Compound 1 presents a zero-supported basketlike structure decorated by three discrete {Fe(2,2'-bipy)(3)} fragments. Compound 2 is monosupported by {Ni(4,4'-bipy)(H(2)O)(3)} subunit. Compound 3 and 4 are bisupported by copper complexes and cadmium complexes, respectively. Compound 5 exhibit a trisupported basket cluster modified with two {Cu(bim)(2)}(2+) and one {Cu(Hbim)(H(2)O)}(3+) cations. Compounds 6-8 are isostructural clusters exhibiting similar tetra-supported structures. Compound 1, 2, and 4 represent the first basket-like hybrids containing transition-metal iron, nickel, and cadmium, respectively. In addition, compounds 2, 6, 7, and 8 are observed for the first time as a two-electron-reduced basket form. The compounds display good electrocatalytic activity upon the reduction of nitrite, and fluorescent properties.

show abstract

Recent Progress on Functionalized Nanoporous Heteropoly Acids: From Synthesis to Applications

Ilbeygi,

Jaafar

2024

The Chemical Record

View full text Add to dashboard Cite

Functionalized nanoporous heteropoly acids (HPAs) have garnered significant attention in recent years due to their enhanced surface area and porosity, as well as their potential for low‐cost regeneration compared to bulk materials. This review aims to provide an overview of the recent advancements in the synthesis and applications of functionalized HPAs. We begin by introducing the fundamental properties of HPAs and their unique structure, followed by a comprehensive overview of the various approaches employed for the synthesis of functionalized HPAs, including salts, anchoring onto supports, and implementing mesoporous silica sieves. The potential applications of functionalized HPAs in various fields are also discussed, highlighting their boosted performance in a wide range of applications. Finally, we address the current challenges and present future prospects in the development of functionalized HPAs, particularly in the context of mesoporous HPAs. This review aims to provide a comprehensive summary of the recent progress in the field, highlighting the significant advancements made in the synthesis and applications of functionalized HPAs.

show abstract

In situ immobilization of Ag nanoparticles on Keggin heteropoly blue microtubes

Cited by 12 publications

References 25 publications

Organic–Inorganic Hybrid Materials Based on Basket-like {Ca⊂P₆Mo₁₈O₇₃} Cages

Organic–Inorganic Hybrid Materials Based on Basket-like {Ca⊂P₆Mo₁₈O₇₃} Cages

Assembly of Organic–Inorganic Hybrid Supramolecular Materials Based on Basketlike {M⊂P₆Mo₁₈O₇₃} (M = Ca, Sr, Ba) Cage and Transition-Metal Complex

Recent Progress on Functionalized Nanoporous Heteropoly Acids: From Synthesis to Applications

Contact Info

Product

Resources

About

In situ immobilization of Ag nanoparticles on Keggin heteropoly blue microtubes

Cited by 12 publications

References 25 publications

Organic–Inorganic Hybrid Materials Based on Basket-like {Ca⊂P6Mo18O73} Cages

Organic–Inorganic Hybrid Materials Based on Basket-like {Ca⊂P6Mo18O73} Cages

Assembly of Organic–Inorganic Hybrid Supramolecular Materials Based on Basketlike {M⊂P6Mo18O73} (M = Ca, Sr, Ba) Cage and Transition-Metal Complex

Recent Progress on Functionalized Nanoporous Heteropoly Acids: From Synthesis to Applications

Contact Info

Product

Resources

About

Organic–Inorganic Hybrid Materials Based on Basket-like {Ca⊂P₆Mo₁₈O₇₃} Cages

Organic–Inorganic Hybrid Materials Based on Basket-like {Ca⊂P₆Mo₁₈O₇₃} Cages

Assembly of Organic–Inorganic Hybrid Supramolecular Materials Based on Basketlike {M⊂P₆Mo₁₈O₇₃} (M = Ca, Sr, Ba) Cage and Transition-Metal Complex