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Comparative Studies of the Degradation of Several Zeolites Under Electron Irradiation

Published online by Cambridge University Press:  28 February 2011

D. R. Acosta ,
O. Guzman ,
P. Del Angel  and
J. Dominguez
D. R. Acosta
Affiliation:
Instituto Mexicano del Petróleo,I.B.P.,A.P. 14-805,MEXICO D.F. M.J.YACAMAN: IFUNAM, A.P.20-364,01000 MEXICO D.F.,MEXICO.
O. Guzman
Affiliation:
Instituto Mexicano del Petróleo,I.B.P.,A.P. 14-805,MEXICO D.F. M.J.YACAMAN: IFUNAM, A.P.20-364,01000 MEXICO D.F.,MEXICO.
P. Del Angel
Affiliation:
Instituto Mexicano del Petróleo,I.B.P.,A.P. 14-805,MEXICO D.F. M.J.YACAMAN: IFUNAM, A.P.20-364,01000 MEXICO D.F.,MEXICO.
J. Dominguez
Affiliation:
Instituto Mexicano del Petróleo,I.B.P.,A.P. 14-805,MEXICO D.F. M.J.YACAMAN: IFUNAM, A.P.20-364,01000 MEXICO D.F.,MEXICO.
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Extract

High resolution electron microscopy has proven to be a powerful technique to determine structural characteristics of zeolites (l–2),symmetry variations and identification of several kind of defects.Together with ideal projected potential images, the microscopist usually finds in electron micrographs the influence of electro-optical parameters and alterations of the crystallinity of the material under electron irradiation. One of the purposes of this workis to contributetothe understanding of the degradation process of zeolites under electron irradiation in the electron microscope and in this way, discriminate when it is possible, what is reliable information recorded in the images obtained in high resolution conditions.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 111: Symposium O – Microstructure and Properties of Catalysts , 1987 , 173
Copyright
Copyright © Materials Research Society 1988

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References

1.- Thomas, J. et al.:”Intrazeolite Chemistry”ACS Series,1983 Google Scholar
2.- Domínguez, J.M. et al.:J.of Cat. 83,450,1983 Google Scholar
3.- Acosta, D.R.: EMSA Procc. 1986, page 852CrossRefGoogle Scholar
4.- Bursill, L. Thomas, J.:J.Phys.Chem. 85,3007,191CrossRefGoogle Scholar
5.- Karger, J. et al.:Zeolites 6,146,1986 Google Scholar