Acta Phys. -Chim. Sin. ›› 1991, Vol. 7 ›› Issue (06): 662-665.doi: 10.3866/PKU.WHXB19910606

• ARTICLE • Previous Articles     Next Articles

Studies on Hetero-Atom ZSM-48 Type Molecular Sieves III. Existing State of Hetero-atom

Jiao Qing-Zhu; Pang Wen-Qin   

  1. Institute of Synthetic and Catalytic Chemistry of Jilin University 130023
  • Received:1990-06-11 Revised:1990-11-28 Published:1991-12-15
  • Contact: Jiao Qing-Zhu

Abstract: It was identified by many techniques such as XRD, IR, XPS, ESR and magnetic susceptibility measurement that the hetero-atoms on the frameworks of M-ZSM-48 type molecular sieves reside at the sites of distorted tetrahedral coordination. V and Cr exist as V(Ⅳ) and Cr(Ⅲ) respectively.

Key words: Hetero-atom, ZSM-48, Structure