X-ray spectral investigation by synchrotron radiation of supported Re/SiO<sub>2</sub> and (Re+Pt)/SiO<sub>2</sub> catalysts prepared via triethoxyrhenium期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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X-ray spectral investigation by synchrotron radiation of supported Re/SiO₂ and (Re+Pt)/SiO₂ catalysts prepared via triethoxyrhenium

Authors:	Yu I Yermakov B N Kuznetsov I A Ovsyannikova A N Startsev S B Erenburg and M A Sheromov

Institution:	(1) Institute of Catalysis, Siberian Branch of the USSR Academy of Sciences, Novosibirsk, USSR

Abstract:	Using synchrotron radiation L_III absorption spectra of rhenium in Re/SiO₂ and (Re+Pt)/SiO₂ catalysts prepared via triethoxyrhenium have been studied. The conclusion has been drawn that reduced catalysts contain lowvalent rhenium ions and their composition is more uniform than that of the previously examined catalysts Re/Al₂O₃ and (Re+Pt)/Al₂O₃ prepared by a conventional impregnation technique. L_III- Re/SiO₂ (Re+Pt)/SiO₂, . , , Re/Al₂O₃ (Re+Pt)/Al₂O₃, .

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