Three-Dimensional Transmission Electron Microscopic Observations of Mesopores in Dealuminated Zeolite Y Supported by NWO under grant 98037. The research of A.J.K. has been made possible by a fellowship of the Royal Netherlands Academy of Arts and Sciences (KNAW). The authors thank J. E. M. J. Raaymakers for the nitrogen physisorption measurements, A. J. M. Mens for the XPS measurements, J. A. R. van Veen and E. J. Creyghton for physical data and useful discussions, and Shell International Chemicals and Zeolyst for the samples.
Department of Inorganic Chemistry and Catalysis Debye Institute, Utrecht University PO Box 80083, 3508 TB Utrecht (The Netherlands).
Andries H.
AH
Janssen
Abraham J.
AJ
Koster
Krijn P.
KP
de Jong