Effect of B or N doping on the dielectric and electrical properties of ZnO at room temperature

Güler, Ali Can; Dindar, Bircan; Örücü, Hümeyra

doi:10.1088/2053-1591/ab0b83

Cited by 10 publications

(3 citation statements)

References 40 publications

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“…Moreover, -Al2O3 possesses a higher dielectric constant than γ-Al2O3 at 800Hz, while similar values are generally given for  and  alumina: 9-10 [16,21]. Literature data gives εr of about 5 for ZnO [22] and 52 for CeO2 [23], which differ significantly from our measurements.…”

Section: °Csupporting

confidence: 74%

Plasma-metal oxides coupling for CH4-CO2 transformation into syngas and/or hydrocarbons, oxygenates

et al. 2021

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Dry reforming of methane was investigated by non-thermal plasma coupled with different metal oxides: BaO, La2O3, ZnO, CaO, -Al2O3, MgO, γ-Al2O3, TiO2 and CeO2. The deposited power was fixed at 8W and the total gas flow at 40 mL.min-1 (75% helium as diluent). Electrical characterization showed that the CO2 and CH4 conversions were enhanced (from 5.6 to 30.6% for CH4 and from 1.9 to 16.1 % for CO2) when the permittivity was reduced from 2903 to 4.1, respectively. Methanol selectivities were favored for the oxides presenting low permittivities, indicating that reaction is favored under a low electric field, thus low density of reactive species. The effect of reaction temperature was evaluated on MgO catalyst. The increase of the temperature favored CH4 conversion, while reducing methanol selectivity. The oxide characterization by TGA revealed the re-hydroxylation of MgO at low temperature, which was correlated to the improved oxygenated compounds selectivities.

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Section: °Csupporting

confidence: 74%

Plasma-metal oxides coupling for CH4-CO2 transformation into syngas and/or hydrocarbons, oxygenates

et al. 2021

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“…The ε 1 measures the energy stored in the material from the applied electric field, whereas the ε 2 describes the dielectric loss or dissipation energy. To extract the dielectric constant, the following equation is used [ 44 ]:

…”

Section: Resultsmentioning

confidence: 99%

Electrocatalytic Degradation of Rhodamine B Using Li-Doped ZnO Nanoparticles: Novel Approach

et al. 2023

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In this paper, we discuss the preparation of Li-doped ZnO nanostructures through combustion and report on their structural, morphological, optical, and electrocatalysis properties. X-ray diffraction analyses show that the samples have a structure crystallized into the usual hexagonal wurtzite ZnO structure according to the P63mc space group. The scanning electron microscope images conceal all samples’ nanosphere bundles and aggregates. The reflectance spectra analysis showed that the direct bandgap values varied from 3.273 eV (for pure ZnO, i.e., ZnL1) to 3.256 eV (for high Li-doped ZnO). The measured capacitance concerning frequency has estimated the variation of dielectric constant, dielectric loss, and AC conductivity against AC electric field frequency. The dielectric constant variations and AC conductivity are analyzed and discussed by well-known models such as Koop’s phenomenological theory and Jonscher’s law. The Raman spectra have been recorded and examined for the prepared samples. Rhodamine B was electro-catalytically degraded in all prepared samples, with the fastest time for ZnL5 being 3 min.

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“…Thus, 2.5 wt% G has better strength, cell adhesion, and degradation compared to others. [5] The scale bar represented 100 𝜇𝑚 (1)…”

Section: Introductionmentioning

confidence: 99%

PCL/graphene 3D scaffold fabrication and in vitro analysis using a solvent casting and particulate leaching assembly process

Anitasari

Shen

et al. 2023

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Effect of B or N doping on the dielectric and electrical properties of ZnO at room temperature

Cited by 10 publications

References 40 publications

Plasma-metal oxides coupling for CH4-CO2 transformation into syngas and/or hydrocarbons, oxygenates

Plasma-metal oxides coupling for CH4-CO2 transformation into syngas and/or hydrocarbons, oxygenates

Electrocatalytic Degradation of Rhodamine B Using Li-Doped ZnO Nanoparticles: Novel Approach

PCL/graphene 3D scaffold fabrication and in vitro analysis using a solvent casting and particulate leaching assembly process

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