Molecular Sieves — Preparation, Properties, and Applications

Nikolina, V. Ya.; Neimark, I. E.; Piontkovskaya, M. A.

doi:10.1070/rc1960v029n09abeh001250

Cited by 6 publications

(1 citation statement)

References 2 publications

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“…Its 3D structure consists of tetrahedral SiO 4 and AlO 4 backbones, with cavity inlet diameter ∼10 Å and spherical cavity diameter ∼14 Å (Nikolina et al 1960;Tatlier and Erdem-Çenatalar 2001;Walker et al 1966) For smallsized gas molecules of argon, O 2 and O 3 , these channel or void parameters do not pose any hindrance for through flow, although the ionic backbone may locally (outside and within channels) modify the micro-discharge patterns of DBD, and introduce subtle differences with respect to measurements sans packing. The packing also absorbed a part of the heat released and helped to dissipate it within.…”

Section: Ozone Generation In Presence Of Packing Materialsmentioning

confidence: 98%

Ozone Generation from Argon-Oxygen Mixtures in Presence of Different Packing Materials within Dielectric Barrier Discharge Gap

Dwivedi

Toley

Dey

et al. 2013

Ozone: Science & Engineering

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Assessments of ozone yield and concentration in DielectricBarrier Discharge of argon-oxygen mixtures in presence of various packing materials are discussed. These include zeolite molecular sieve 13X pellets, Pyrex beads, Pyrex wool, and porous TiO 2 -beads, which presented differential reactive surfaces, nano cavities, photo-catalysis, and dissimilar ionic environments. Their utility was evaluated in conjunction with varied gas composition, flow rate, and electrical inputs. In a mixture of 3-21% O 2 in argon, the ozone concentration ranged between 16-980 ppm, simultaneous measurements of in situ energy dissipation revealed its yield, G(O 3 ) to change independently from 0.002 to 2.020 μmol J −1 . TiO 2 packing emerged as the most versatile material to produce O 3 in high concentration and yield.

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Section: Ozone Generation In Presence Of Packing Materialsmentioning

confidence: 98%