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Interaction between metal and support: Effects of support acidity on adspecies of co over Ru

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Abstract

Supported Ru/X catalysts (X: SiO2, Al2O3, SiO2·Al2O3, HY) have been investigated by IR and TPR (temperature programmed reduction). Due to interaction between Ru and Lewis or Brönsted sites of the support, the Ru sites become electron-deficient. Stronger acidity of the support makes the Ru sites more electron-deficient, and as a result, adspecies of Ru+δ (CO)4 or Ru+δ(CO)2 can occur more easily.

Abstract

Нанесенные катализаторы Ru/X (X:SiO2, Al2O3, SiO2·Al2O3, HY) исследованы с помощью ИК-спектроскопии и ТПВ. Вследствие взаимодействия Ru с льюисными и брёнстэдными центрами рутениевые центры приобретают электронную дефицитность. Повышенная кислотность носителя увеличивает электронную дефицитность рутениевых центров, в рузультате чего легче образуются аддитивы Ru+δ(CO)4 или Ru+δ(CO)2.

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Authors and Affiliations

  1. Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, China

    Xin Qin, Shi Xianxiang, Ying Pinliang & Guo Xiexian

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  1. Xin Qin
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  2. Shi Xianxiang
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  3. Ying Pinliang
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  4. Guo Xiexian
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Qin, X., Xianxiang, S., Pinliang, Y. et al. Interaction between metal and support: Effects of support acidity on adspecies of co over Ru. React Kinet Catal Lett 31, 279–283 (1986). https://doi.org/10.1007/BF02072957

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  • DOI: https://doi.org/10.1007/BF02072957

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