Rapid Synthesis of Amino Acid Polyoxometalate Nanotubes by One-Step Solid-State Chemical Reaction at Room Temperature

Wang, Ruiying; Jia, Dianzeng; Zhang, Li; Liu, Long; Guo, Zaiping; Li, Bai-Qin; Wang, Jinxi

doi:10.1002/adfm.200500549

Cited by 108 publications

(38 citation statements)

References 30 publications

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“…[13] Jia and co-workers synthesized three novel tyrosine (Tyr) POM NTs by solid-state chemical reactions. [14] Wang prepared Zn 1.2 H 0.6 PW 12 O 40 NTs by using cellulose fibers as templates. [15] We obtained K 4 SiW 12 O 40 microtubes by a template-free method in an aqueous solution.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Application of Multiple‐Component‐Doped Keggin Polyoxometalate Microtubes—Towards a Component‐Tunable Hollow Structure

Shen

Peng

Pang

et al. 2011

Chemistry A European J

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In this paper, the preparation of ascorbic acid (AA)-doped polyoxometalate (SiW(12)-AA) microtubes is described. The SiW(12)-AA microtubes convert to heteropoly blue microtubes upon exposure to ammonia gas, which is an ammonia-triggered solid-solid redox reaction between AA molecules and polyoxometalates, and can possibly be applied to a chemical sensor for detecting ammonia and volatile organic amines. Furthermore, the SiW(12)-AA microtubes have been applied to the in situ synthesis of Ag nanoparticles (NPs) through the redox reaction between the AA component and Ag(+) ions occurring on the surfaces of the SiW(12)-AA microtubes to give silver NPs immobilized on polyoxometalate microtubes (Ag@SiW(12)).

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Section: Introductionmentioning

confidence: 99%

Preparation and Application of Multiple‐Component‐Doped Keggin Polyoxometalate Microtubes—Towards a Component‐Tunable Hollow Structure

Shen

Peng

Pang

et al. 2011

Chemistry A European J

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“…[ 27] This confirmed that the majority of Pc enters was located in Keggin ions supported on SBA-15. [28] The peak in the spectrum of H 3 PO 4 -SBA-15 at 0.8 ppm could be assigned to molecular H 3 PO 4 .I nt he spectrumo fa ctivated H 3 PO 4 -SBA-15, four pronounced peaks can be seen at chemical shifts of 0.8, À10.8, À22.8, and À35.9 ppm. Zhang and coworkers reported similar results for SiO 2 impregnated with H 3 PO 4.…”

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confidence: 97%

Role of Vanadium and Phosphorus in Substituted Keggin‐Type Heteropolyoxo Molybdates Supported on Silica SBA‐15 in Selective Propene Oxidation

2015

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Vanadium‐containing Keggin‐type heteropolyoxo molybdate ([PV2Mo10O40]5−) was supported on silica SBA‐15 (denoted as PV2Mo10‐SBA‐15). The structural evolution and catalytic activity of PV2Mo10‐SBA‐15 and a suitable reference V2Mo10Ox‐SBA‐15 were investigated under selective propene oxidation conditions by using in situ X‐ray absorption spectroscopy. 31P MAS NMR measurements of supported PV2Mo10‐SBA‐15 and reference H3PO4‐SBA‐15 were performed after the catalytic reaction. PV2Mo10‐SBA‐15 formed a mixture of mainly tetrahedral [MoOx] and [VOx] units during thermal treatment under propene oxidation conditions. Changes in the average local structure around V centers coincided with the changes in the average local structure around Mo centers and the onset of catalytic activity. In addition, mainly tetrahedral [MoOx] and [VOx] units seemed to be in close proximity and interacted under catalytic conditions. Conversely, in the reference material V2Mo10Ox‐SBA‐15 synthesized with individual V and Mo source precursors, Mo and V centers appeared to be more separated from each other. The structural environment of P in PV2Mo10‐SBA‐15 under catalytic conditions corresponded to a mixture of various species. P was connected to both the support material SBA‐15 via POSi bonds and [MoOx] or [VOx] units. Apparently, the proximity of V and Mo in Keggin precursors was a prerequisite for obtaining (Mo,V) oxide species on the support material.

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“…Particularly, low-temperature solid-state route has been found to be a simple, efficient way and shows specific advantages, such as convenience, economical, less energy and material consumption and high yield [5][6][7][8] .…”

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confidence: 99%

Syntheses of CuO nanostructures in ionic liquids

Zhao

Yuan

et al. 2007

SCI CHINA SER B

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A simple and efficient approach is developed to fabricate single-crystalline CuO nanostructures through an ionic liquid assisted one-step low-temperature solid-state route. Both nanoparticles (5 nm in size) and nanorods (5-10 nm in diameter and 50-100 nm in length) of monoclinic CuO were obtained. These synthesized CuO nanostructures were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), selected area electron diffraction (SAED), X-ray photoelectron spectroscopy (XPS), energy dispersive spectroscopy (EDS) and nitrogen adsorption analysis. The morphologies of the nanostructures can be controlled by tuning the amount of NaOH and ionic liquids. The growth mechanism of CuO nanostructures is investigated.CuO, nanostructures, ionic liquids, low-temperature solid-state route Metal oxides represent the most diverse class of materials with properties covering almost all aspects of materials science and physics in areas including superconductivity, ferroelectricity, magnetism, transparent conducting materials and gas sensors. A good example is crystalline copper oxide with nanometer-scale, an advanced material with wide potential applications as high-T c superconductors, organic catalysts, gas sensors, and lithium ions electrode materials [1] . Especially recently, single crystalline CuO nanorods have been used as anode materials for lithium ion battery and exhibit a high electrochemical capacity [2] . For these particular applications, the high surface-volume ratio and the nanometric size are expected to result in a tremendous improvement of chemical properties, thus rendering this material particularly appealing [1] .Many efficient approaches to prepare copper oxide thin film, nanotube, nanorods, and nanoparticles have been reported, such as MOCVD template method [1] , wet-chemistry route [2] , sonochemical preparation [3] , alkoxide-based preparation [4] , solid-state reaction [5] , solid-state reaction in the presence of surfactant polyethylene glycol (PEG) [6] , etc. Particularly, low-temperature solid-state route has been found to be a simple, efficient way and shows specific advantages, such as convenience, economical, less energy and material consumption and high yield [5][6][7][8] .Ionic liquids are salts composed of only ions which are liquid at relatively low temperatures (under 100℃). 1-n-butyl-3-methylimidazolium tetrafluoroborate (abbreviated as [BMIM] [BF 4 ], Scheme 1), as a room temperature ionic liquid, is air and moisture stable, neutral, non-volatile, and weakly coordinating. In addition, both its cation and anion can serve as templates or charge compensating groups in the syntheses. When an ionic liquid is used as a reaction solvent, the solute is solvated by ions only. Thus, the reaction proceeds in an environment totally different from that when water or ordinary organic solvents are used, and therefore, high selectivity is possible. Although their applications with these features are being vigorously explored as green solvents in organic synthesis, such as Friedel-Cr...

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Rapid Synthesis of Amino Acid Polyoxometalate Nanotubes by One-Step Solid-State Chemical Reaction at Room Temperature

Cited by 108 publications

References 30 publications

Preparation and Application of Multiple‐Component‐Doped Keggin Polyoxometalate Microtubes—Towards a Component‐Tunable Hollow Structure

Preparation and Application of Multiple‐Component‐Doped Keggin Polyoxometalate Microtubes—Towards a Component‐Tunable Hollow Structure

Role of Vanadium and Phosphorus in Substituted Keggin‐Type Heteropolyoxo Molybdates Supported on Silica SBA‐15 in Selective Propene Oxidation

Syntheses of CuO nanostructures in ionic liquids

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