Catalysis Letters

, Volume 22, Issue 4, pp 387–392 | Cite as

Study of surface properties of dodecatungstophosphoric acid by means of ionization of aromatic hydrocarbons

  • Feng Xian Liu-Cai
  • Frédéric Lefebvre


The surface properties of H3PW12O40 are initially dependent on pretreatment temperature as can be deduced from the ionization of adsorbed aromatic hydrocarbons. Not only does surface dehydration proceed at a lower temperature than bulk dehydration but also highly reactive species (ionized benzene) are generated by the loss of protons of polyanions in special locations such as corner or edge positions.


Hydrocarbon ionization ESR dodecatungstophosphoric acid 


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Copyright information

© J.C. Baltzer AG, Science Publishers 1993

Authors and Affiliations

  • Feng Xian Liu-Cai
    • 1
  • Frédéric Lefebvre
    • 1
  1. 1.Laboratoire de Chimie des Métaux de TransitionUniversité de Paris VIParis Cedex 05France

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