Dielectric properties of alumino-silicate ceramic material

Nemancha, M.; Rouaiguia, S.; Belbah, Ahmed; Belfarhi, B.

doi:10.1109/icsd.1995.523019

Cited by 3 publications

(3 citation statements)

References 2 publications

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“…The extremely thin catalyst layers should have a negligible effect on the physical characteristics of the plasma, and the dielectric properties of the reaction volume are dominated by the permittivity of the support material. 67,68 Given this approximation, the differences in the plasma itself near the surface of the catalyst should be negligible. Therefore, this approach produces regularized plasma catalysts for which any macroscopic changes in products can be ascribed to microscopic changes in activity.…”

Section: Rsc Applied Interfaces Papermentioning

confidence: 99%

Characterizing catalyst function and transformations in the plasma reduction of CO₂ on atomic layer deposition-synthesized catalysts

Conlin,

Mehrabi,

Parette

et al. 2024

RSC Appl. Interfaces

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Section: Rsc Applied Interfaces Papermentioning

confidence: 99%

Characterizing catalyst function and transformations in the plasma reduction of CO₂ on atomic layer deposition-synthesized catalysts

Conlin,

Mehrabi,

Parette

et al. 2024

RSC Appl. Interfaces

View full text Add to dashboard Cite

show abstract

“…The extremely thin catalyst layers should have a negligible effect on the physical characteristics of the plasma, and the dielectric properties of the reaction volume are dominated by the permittivity of the support material. 66,67 Given this approximation, the differences in the plasma itself near the surface of the catalyst should be negligible. Therefore, the opportunity that this approach to producing ultra-regularized plasma catalysts is that any microscopic changes in activity can be inferred from the results of the macroscopic product analysis.…”

Section: Effect Of Ald Catalyst On Co2 Conversion and Reactor Input P...mentioning

confidence: 99%

Characterizing Catalyst Function and Transformations in the Plasma Reduction of CO 2 on Atomic Layer Deposition-Synthesized Catalysts

Conlin,

Mehrabi,

Parette

et al. 2024

Preprint

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The enhancement of CO2 reduction in atmospheric-pressure, non-thermal plasma has been shown using a variety of catalyst systems with ranging composition, particle sizes, and morphologies. Improvements in CO2 conversion can be attained by choice of catalyst material. However, inhomogeneity in the material distribution arising from the synthesis affects the catalytically active surface area and dielectric environment that modulates the plasma properties near the catalyst. Atomic layer deposition (ALD) can be used to control the composition of ultra- thin layers on support materials. We used ALD to synthesize metal oxide catalyst coatings on high surface area supports. We found that TiO 2 achieved significantly higher yields of CO2 conversion (to CO and O2 ) at low reactor power compared to ZnO or Al2O3 , materials commonly used a support for other catalysts. We also observed an unexpected increase in the catalytic activity on ZnO with increasing power. The results here suggest that ALD can unambiguously isolate the catalytic effects of materials in plasma reactors.

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“…Ceramic insulators are widely used in power transmission as well as distribution lines [1][2][3][4][5]. It is also reported that there are many failures of ceramics insulators especially in polluted areas [4,[6][7][8]. One method to improve the performance of these insulators is optimizing, first, their chemical composition and second, the shaping up and elaboration processes.…”

Section: Introductionmentioning

confidence: 99%

Improving usual and dielectric properties of ceramic high voltage insulators

2009

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The optimization of the formulation (nature and content of chemical components) and the technical parameters of the shaping-up process of ceramic insulators (in replacement of those in glass) are the objectives of this study. The decontamination of SiO2 (solid-liquid extraction of Fe xOy) and the increase of both BaO and ZrO2 amounts (while Na2O is partially eliminated) and the firing temperature allowed a significant increase of all the phys-mechanical and insulating properties at the commercial frequency 50-60 Hz. Samples with 15 mm diameter and 2 mm thickness and others for mechanical properties were needed. The characterization concerned Ba-Zr(Al xSi1-x)O3 ceramic samples. By data computing of the test results, a new "computed" formulation (Ba-stabilized and Zr doped mullite) showed excellent phys-mechanical (density, viscosity, flexural and traction strengths) and insulating properties (transversal resistivity, dielectric strength).

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Dielectric properties of alumino-silicate ceramic material

Cited by 3 publications

References 2 publications

Characterizing catalyst function and transformations in the plasma reduction of CO₂ on atomic layer deposition-synthesized catalysts

Characterizing catalyst function and transformations in the plasma reduction of CO₂ on atomic layer deposition-synthesized catalysts

Characterizing Catalyst Function and Transformations in the Plasma Reduction of CO 2 on Atomic Layer Deposition-Synthesized Catalysts

Improving usual and dielectric properties of ceramic high voltage insulators

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Dielectric properties of alumino-silicate ceramic material

Cited by 3 publications

References 2 publications

Characterizing catalyst function and transformations in the plasma reduction of CO2 on atomic layer deposition-synthesized catalysts

Characterizing catalyst function and transformations in the plasma reduction of CO2 on atomic layer deposition-synthesized catalysts

Characterizing Catalyst Function and Transformations in the Plasma Reduction of CO 2 on Atomic Layer Deposition-Synthesized Catalysts

Improving usual and dielectric properties of ceramic high voltage insulators

Contact Info

Product

Resources

About

Characterizing catalyst function and transformations in the plasma reduction of CO₂ on atomic layer deposition-synthesized catalysts

Characterizing catalyst function and transformations in the plasma reduction of CO₂ on atomic layer deposition-synthesized catalysts