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Hydrogenation catalysts based on platinum complexes with polymer

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Abstract

Poly-vinylpyrrolidone-anchored (PVP) supported platinum catalyst (PVP-Pt) and rare earth metals (Sm3+, Pr3+, Ce3+, Nd3+and La3+) promoted PVP-Pt catalysts were prepared and used in the hydrogenation of o- and m-chloronitrobenzene (CNB) in ethanol at 303 K and atmospheric pressure. It was found that rare earth metals improved the selectivity of chloronitrobenzene to chloroaniline (CAN), while the hydrogenation rate of CNB decreased. In the presence of NaOH, PVP-Pr-Pt and PVP-La-Pt catalysts exhibit the highest selectivity in the hydrogenation of CNB. At the same time different support materials of Pt catalyst (such as polyethylene glycol (PEG), ethyl cellulose (EC)) possessed great influence on catalytic activity and selectivity of p-CAN.

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Authors and Affiliations

  1. Institute of Catalysis, Zhejiang University, Hangzhou, 310028, P. R. China

    Xiao-Xiang Han, Ren-Xian Zhou, Guo-hua Lai, Bao-hua Yue & Xiao-Ming Zheng

  2. Zhejiang Chemical College, Hangzhou, 310053, P. R. China

    Guo-hua Lai

Authors
  1. Xiao-Xiang Han
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  2. Ren-Xian Zhou
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  3. Guo-hua Lai
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  4. Bao-hua Yue
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  5. Xiao-Ming Zheng
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Han, XX., Zhou, RX., Lai, Gh. et al. Hydrogenation catalysts based on platinum complexes with polymer. Reaction Kinetics and Catalysis Letters 81, 41–47 (2004). https://doi.org/10.1023/B:REAC.0000016515.17701.dc

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  • DOI: https://doi.org/10.1023/B:REAC.0000016515.17701.dc

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