Structural characterization of gamma irradiated lithium phosphate glasses containing variable amounts of molybdenum

ElBatal, F.H.; Abdelghany, A.M.; Elwan, R. L.

doi:10.1016/j.molstruc.2011.05.060

Cited by 64 publications

(13 citation statements)

References 30 publications

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“…Smaller absorption band located at about 320 nm can be related to Mo 3 þ ions [5,6], in agreement with the EPR data. A highly possible mechanism can be summarized as follows:…”

Section: Uv-vis Spectroscopysupporting

confidence: 89%

“…Moreover, glasses containing molybdenum ions have interesting optical and electrical properties depending on the type and composition of glass and the different valence states of molybdenum ions [3]. Such peculiar properties are related to the ability of molybdenum ions to exist in glasses in four possible valences, namely Mo 3 þ , Mo 4 þ , Mo 5 þ and Mo 6 þ [4][5][6]. The conductivity process in transition metal ion glasses, such as Mo, V, etc.…”

Section: Introductionmentioning

confidence: 99%

“…It is possible that the number of [GeO 6 ] structural units to attain maximum value, in agreement with density value and with the increase of intensity of the IR band located at about 700 cm À 1 . Noticeable changes appear in the intensity of the UV-vis bands centered at about 310 nm which corresponds to the Pb 2 þ ions with s 2 configuration and also in the intensity of the bands located in the region between 450 and 580 nm which can be related to Mo 4 þ ions[5,6]. On the other hand, the decrease in intensity of the EPR resonance line located at about g$ 5.2 is related to the oxidation of some Mo 3 þ ions into Mo 4 þ ions.…”

mentioning

confidence: 98%

See 2 more Smart Citations

Physical properties and electrochemical performance of molybdenum–lead-germanate glasses and glass ceramics

Rada¹,

Culea²,

Chelcea³

et al. 2013

Ceramics International

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“…Smaller absorption band located at about 320 nm can be related to Mo 3 þ ions [5,6], in agreement with the EPR data. A highly possible mechanism can be summarized as follows:…”

Section: Uv-vis Spectroscopysupporting

confidence: 89%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 98%

See 1 more Smart Citation

Physical properties and electrochemical performance of molybdenum–lead-germanate glasses and glass ceramics

Rada¹,

Culea²,

Chelcea³

et al. 2013

Ceramics International

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“…Elbatal and H.A. Elbatal [25][26][27] ␥-irradiation [16]. However, to the author's knowledge, the effect of silver particles on the emission properties of Eu 2+ ions has been scarcely reported.…”

Section: Introductionmentioning

confidence: 99%

White light emission from γ-irradiated Ag/Eu co-doped phosphate glass under NUV light excitation

Song

Chen

et al. 2012

Journal of Alloys and Compounds

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“…For HMoP-1-HT, the absorption band at 744-834 nm is related to Mo 5 + ions to the hybrid phosphonate framework. [28] The characteristic peak of Mo 5 + is also observable at 401 nm and attributed to the 2 B 2 ! 2 B 1 transition.…”

Section: Thermal Analysismentioning

confidence: 98%

Self‐Assembled Hybrid Molybdenum Phosphonate Porous Nanomaterials and Their Catalytic Activity for the Synthesis of Benzimidazoles

Pramanik

Bhaumik

2014

ChemCatChem

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A new porous organic–inorganic hybrid molybdenum phosphonate nanomaterial (HMoP‐1) was synthesized through the reaction of benzene‐1,3,5‐triphosphonic acid and molybdenum(V) chloride under hydrothermal conditions in the absence of any structure‐directing agent. The morphology of the hybrid material was found to be different at different synthesis temperatures. The material synthesized at 423 K (HMoP‐1‐LT) has spherical particle morphology, and the material synthesized at 453 K (HMoP‐1‐HT) has self‐assembled flakelike morphology. Powder XRD, field‐emission SEM, high‐resolution TEM, N2 sorption, solid‐state 13C cross‐polarization magic‐angle spinning NMR and 31P magic‐angle spinning NMR analyses, X‐ray photoelectron spectroscopy, thermogravimetric differential thermal analysis, NH3 temperature‐programmed adsorption, and FTIR spectroscopic techniques were employed to characterize the samples and understand the morphological diversity. The orthorhombic crystal phase of the material was established through REFLEX and CELSIZ unit cell refinement programs. The calculated unit cell parameters of HMoP‐1‐HT are a=8.001(0.046) Å b=7.029 (0.039) Å, c=6.010 (0.036) Å; whereas HMoP‐1‐LT is amorphous in nature. HMoP‐1‐HT shows outstanding catalytic activity and high recycling efficiency for the green and efficient one‐pot condensation reaction for the synthesis of bioactive 2‐aryl benzimidazoles in excellent yields at room temperature.

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Structural characterization of gamma irradiated lithium phosphate glasses containing variable amounts of molybdenum

Cited by 64 publications

References 30 publications

Physical properties and electrochemical performance of molybdenum–lead-germanate glasses and glass ceramics

Physical properties and electrochemical performance of molybdenum–lead-germanate glasses and glass ceramics

White light emission from γ-irradiated Ag/Eu co-doped phosphate glass under NUV light excitation

Self‐Assembled Hybrid Molybdenum Phosphonate Porous Nanomaterials and Their Catalytic Activity for the Synthesis of Benzimidazoles

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