Browsing by Subject "Silver oxides"

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    Effect of Silver Oxide on Colour Variation and Gloss of an Opaque Glaze
    (I N S I O Scientific Books and Periodicals, 2014) Israil L.I.; Köseoglu K.; Cengizler H.
    The most important point of whitening frit glazes is the elimination of transperancy. For that purpose, opacifiers are used. In this work, the effect of Ag2O additive on colour variation and gloss of a white opaque glaze, used commonly in ceramic ware production, were investigated at the temperatures of 1040°, 1090° and 1140°C. It was found that colour and gloss of an opaque glaze did not vary significantly with Ag2O addition. Furthermore, Ag2O addition was found to be a viable alternative for reducing the sintering temperature of opaque glaze from 1090° to 1040°C. © 2014 © 2014 The Indian Ceramic Society.
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    Dinuclear N-heterocyclic carbene silver complexes: Synthesis, luminescence and catalytic studies
    (Elsevier B.V., 2019) Demir Atlı D.; Gülle S.
    A new dibenzimidazole compound (1) and three dibenzimidazolium salts (2a-2c) were prepared. Reactions of these salts with silver(I) oxide in methanol led to dinuclear N-heterocyclic carbene silver complexes (3a-3c). All of the compounds were characterized by 1H NMR, 13C NMR and elemental analyses. Molecular weights of the silver complexes were confirmed by MALDI-TOF mass spectrometry. Preliminary catalytic studies using all the silver complexes were performed on three-component coupling reaction of p-formaldehyde, piperidine and phenylacetylene. Complexes 3a and 3c exhibited good catalytic activities under neat conditions. The silver complexes showed luminescence properties in CH3CN at room temperature. © 2018 Elsevier B.V.