Polyoxometalates: formation, structures, principal properties, main deposition methods and application in sensing

Ammam, Malika

doi:10.1039/c3ta01663c

Cited by 268 publications

(175 citation statements)

References 280 publications

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“…The chemistry of polyoxometalates is a continuous area of interest on which advances have been developed in various fields of science [1][2][3][4]. Much of this attention has been focused on engineering materials, nanotechnology, catalysis, supramolecular materials, surface science, magnetochemistry, biochemistry and medicine [5][6][7][8][9][10][11][12][13].…”

Section: Introductionmentioning

confidence: 99%

A New Dicationic Ring [(Water)6–(Ammonium)2] Acts as a Building Block for a Supramolecular 3D Assembly of Decavanadate Clusters and 4-(N,N-dimethylamino)pyridinium Ions

et al. 2014

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A new dicationic ring [(water) 6 -(ammonium) 2 ] was found as a building block for a 3D supramolecular assembly of the compound [(CH 3 ) 2 NC 5 H 4 NH] 4 (NH 4 ) 2 [V 10 O 28 ]Á8H 2 O, 1, where (CH 3 ) 2 NC 5 H 4 NH = 4-(N,N-(dimethylamino)pyridinium) (DMAP ? ). The title compound was synthesized and characterized by single crystal X-ray diffraction at 100 K, infrared spectroscopy and thermogravimetric analysis. Compound 1 crystallizes in space group P-1 in the triclinic system with cell parameters: a = 11.1296(4) Å , b = 11.4790(4) Å , c = 11.8691(4) Å , a = 109.631(1)°, b = 100.601(1)°, c = 92.909(1)°and R(F 2 ) = 0.021. The threedimensional supramolecular structure is driven by intermolecular hydrogen bonds OÁÁÁH-N and OÁÁÁH-O from decavanadate anion with NH 4 ? and [(CH 3 ) 2-NC 5 H 4 NH] ? cations, as well as those formed between water molecules and decavanadate ions. The embedded rings consist of two sets of water-water-waterammonium chains joint together in a twisted chair conformation, in which water-ammonium pairs are at the top and bottom sites. The ring is hydrogen bond stabilized and represents to our knowledge, the first example of building block with this composition for a supramolecular structure to be reported.

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Section: Introductionmentioning

confidence: 99%

A New Dicationic Ring [(Water)6–(Ammonium)2] Acts as a Building Block for a Supramolecular 3D Assembly of Decavanadate Clusters and 4-(N,N-dimethylamino)pyridinium Ions

et al. 2014

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“…Silk et al showed that the choice of vanadium complex strongly influenced selectivity, directing either the cleavage of C-C bonds between an aryl ring and the contiguous group, or C-O linkages scission [75]. Polyoxometalates are robust redox catalysts, and effective for oxidative degradation; when performed in the presence of molecular oxygen, a two-step process occurs, in which the polyoxoanion is first reduced and, subsequently, reoxidised without any net structural change [76]. Polyoxometalates applied for the decomposition of lignin residues under molecular oxygen often yields CO 2 and H 2 O by-products [77].…”

Section: Oxidative Transformationsmentioning

confidence: 99%

Heterogeneously catalyzed lignin depolymerization

Pineda

Lee

2016

Appl Petrochem Res

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Biomass offers a unique resource for the sustainable production of bio-derived chemical and fuels as drop-in replacements for the current fossil fuel products. Lignin represents a major component of lignocellulosic biomass, but is particularly recalcitrant for valorization by existing chemical technologies due to its complex crosslinking polymeric network. Here, we highlight a range of catalytic approaches to lignin depolymerisation for the production of aromatic bio-oil and monomeric oxygenates.

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“…Because they are not active materials for glucose sensing, they may degrade the sensitivity of glucose detection. Polyoxometalates M A N U S C R I P T A C C E P T E D ACCEPTED MANUSCRIPT 5 anions (POMs), a type of well-known polynuclear metal-oxo cluster compounds represented by Keggin-type phosphomolybdate (PMo 12 ) [25], can be introduced to fabricate metal nanoparticles/graphene-based glucose biosensor as intermedium. One of the most important properties of PMo 12 is the potential for reversible multi-electron redox reactions, which makes it to be an attractive candidate for electrocatalysis and electroanalysis [26,27].…”

Section: Introductionmentioning

confidence: 99%

Phosphomolybdic acid functionalized graphene loading copper nanoparticles modified electrodes for non-enzymatic electrochemical sensing of glucose

Cao

Xia

et al. 2016

Analytica Chimica Acta

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Polyoxometalates: formation, structures, principal properties, main deposition methods and application in sensing

Cited by 268 publications

References 280 publications

A New Dicationic Ring [(Water)6–(Ammonium)2] Acts as a Building Block for a Supramolecular 3D Assembly of Decavanadate Clusters and 4-(N,N-dimethylamino)pyridinium Ions

A New Dicationic Ring [(Water)6–(Ammonium)2] Acts as a Building Block for a Supramolecular 3D Assembly of Decavanadate Clusters and 4-(N,N-dimethylamino)pyridinium Ions

Heterogeneously catalyzed lignin depolymerization

Phosphomolybdic acid functionalized graphene loading copper nanoparticles modified electrodes for non-enzymatic electrochemical sensing of glucose

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