Microstructure and electrical properties of manganese borosilicate glasses

Kupracz, Piotr; Karczewski, Jakub; Prześniak-Welenc, Marta; Szreder, N.A.; Winiarski, Michał J.; Klimczuk, Tomasz; Barczyński, R.J.

doi:10.1016/j.jnoncrysol.2015.05.014

Cited by 20 publications

(10 citation statements)

References 38 publications

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“…3, that crystalline phase appears with white region where as residual glass phase appears with black region. Figure 3a, c shows the presence of agglomerated grain like crystallites (170-300 nm) of major crystalline phases The electrical properties of as synthesized glass and glassceramic samples were monitored using impedance spectroscopy (Kupracz et al 2015). This technique is relatively powerful to investigate the dynamics of mobile charges in the bulk or interfacial regions of any kind of materials which operates an alternating current with variable frequency.…”

Section: Resultsmentioning

confidence: 99%

Lithium–germanium–phosphate glassceramic electrolytes: correlation between the nanocrystallization and electrical studies

et al. 2016

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Investigations on the microstructural and electrical properties of a glassceramic system: (100mol%, in the regular steps of 2 mol%) via high-energy ball milling technique are reported. XRD spectra of LGePG glassceramic samples were identified major crystalline phases such as Li 3 Ge 2 (-PO 4 ) 3 (NASICON-type phase), Ga 2 Li 3 (PO 3 ) 7 and GeO 2 from the major diffraction peaks. Bulk conductivity of all these samples was measured for the powder-compressed pellets by ac impedance method. The correlation of log(r) and M 00 peaks suggests the presence of single conduction mechanism in the LGePG glassceramic samples. The results are discussed in the light of degree of crystallization of lithium phosphate glass network.

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Section: Resultsmentioning

confidence: 99%

Lithium–germanium–phosphate glassceramic electrolytes: correlation between the nanocrystallization and electrical studies

et al. 2016

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“…The increase of manganese in the glass increases the concentration of BO 3 units in the resulting glass, causing the glass to be less rigid [67]. This rigidity change would explain the differences [66,67,70] recorded in the particle size distribution of the fritted materials (Fig. 1).…”

Section: Ftir Analysis Of the Pristine And Vitrified Bompmentioning

confidence: 94%

“…For instance, at higher content of Mn (F3), an additional peak appears at 1217 cm −1 and the shoulder observed in F1 and F2 at 719-717 cm −1 gets well defined as a peak at 714 cm −1 . These spectral modifications indicate that manganese modifies the glass structure by changing the balance of tetrahedral BO 4 and trigonal BO 3 in the manganese-rich frits [66]. The increase of manganese in the glass increases the concentration of BO 3 units in the resulting glass, causing the glass to be less rigid [67].…”

Section: Ftir Analysis Of the Pristine And Vitrified Bompmentioning

confidence: 99%

On the Incorporation of Pristine and Pre-vitrified Alkaline Battery Waste into Non-structural Clay Bricks

Assías

Clavijo

Usma

et al. 2020

Waste Biomass Valor

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The purpose of this work was to explore the incorporation of black manganese oxide powder extracted from alkaline batteries into sintered-clay bricks. The black manganese oxide powder was added into the clay mixture in two different states: pristine and pre-vitrified. Three levels of addition were evaluated according to the final wt% of manganese in the bricks: 0.0, 0.1, and 2.5. The resulting test-bricks were then assessed to determine the following physical and mechanical properties: color change, water absorption, water saturation coefficient, compressive strength, and leaching/efflorescence tendency. The results were statistically tested for significance and compared to a standard industrial formulation for non-structural sintered-clay bricks used locally in Girón, Santander (Colombia). In general, the properties of the test-bricks deviated slightly from the standard formulation only when the final content of manganese in the test-bricks reached 2.5 wt%. In particular, the test-bricks with 2.5 wt% of manganese added in the pre-vitrified state, showed a darker brown color, 1.7 % less water absorption, and a 68 % increase on compressive strength, when compared to the industrial reference red-clay bricks. It is worth to point out that none of the test-bricks studied showed efflorescence tendency. In conclusion, the work proves that the Mn-oxides contained in spent alkaline batteries can be successfully incorporated into nonstructural red clay bricks. These findings would help to ease the adoption of novel circular economy strategies in developing countries with no access to metallurgical facilities for battery recycling.

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“…Manganese ions were found to exist in tetrahedral co-ordination. Kupracz et al [18] performed a structural study on MnO-SiO 2 -B 2 O 3 glass systems and concluded that manganese ions exist mostly in Mn 2+ state.…”

Section: Introductionmentioning

confidence: 99%

“…Fitted plot of 50MnO-50B 2 O 3 sample. Gauss functions visualized.Each spectrum possesses three main bands[11,12,18]. Beginning with low wavenumber values one can notice a narrow band at approximately 680 cm−1 as a result of B-O-B bending vibrations.…”

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Role of MnO in manganese–borate binary glass systems: a study on structure and thermal properties

et al. 2017

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Structural and thermal properties of xMnO−(100− x)B 2 O 3 (where x = 40, 50 and 60 mol%) glass samples have been investigated with the employment of various techniques. Fourier transform infrared spectroscopy results revealed the influence of MnO on glass matrix. Decrease of B-O bond-related band intensities has been observed. MnO addition was found to introduce broken [BO 2 O − ] n chains. Differential scanning calorimetry (DSC) measurements presented decreasing T g that indicates depolymerization of glass matrix in the considered compositional range. Moreover, thermal stability (TS) parameter has been evaluated using the DSC technique. It slightly decreased with MnO content. X-ray photoelectron spectroscopy results provided the evidence for Mn 2+ and Mn 3+ presence. Multiplet splitting, close to that of MnO, has been observed. It has been concluded that most of the manganese ions existed in the divalent state. Photoluminescence study revealed that manganese ions are tetragonally coordinated in a glassy matrix.

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Microstructure and electrical properties of manganese borosilicate glasses

Cited by 20 publications

References 38 publications

Lithium–germanium–phosphate glassceramic electrolytes: correlation between the nanocrystallization and electrical studies

Lithium–germanium–phosphate glassceramic electrolytes: correlation between the nanocrystallization and electrical studies

On the Incorporation of Pristine and Pre-vitrified Alkaline Battery Waste into Non-structural Clay Bricks

Role of MnO in manganese–borate binary glass systems: a study on structure and thermal properties

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