309 research outputs found

    FT-IR Emission Spectra of Chemisorbed Species, with Application to Species Adsorbed on Alumina

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    The principles of infrared emission spectroscopy are briefly reviewed with emphasis on the aspects of its application to the study of chemisorbed species. The ma in problems of sample preparation, selection of measurement conditions and the most suitable methods of data treatment are discussed. IR emittance spectra of two typical support materials for supported metal catalysts, alumina and silica, are presented. On the example of a rhenium complex, tetrakisttricarbonyl-us-hydroxo- rhenium), formed on alumina support in catalytic amounts (1.5 to 5% Re) it is shown that the four-measurement technique can lead to observation of the adsorbate bands also in the regions of high substrate emission (between 1300 and 400 cm-1)

    A hallgatĂł Arany

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    Helyesírásunk gondja

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    Horváth János előadásai és tanulmányai

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    Horváth János : Kisfaludy Károly és íróbarátai. Budapest, 1955, Művelt Nép, 182 lap. | Horváth János : Tanulmányok. Budapest, 1956. Akadémiai Kiadó, 638 lap

    Berzsenyi Dániel

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