This work was jointly supported by the Nuclear R&D program and the Global Research Laboratory program of the National Research Foundation of the Korean Ministry of Education, Science, and Technology (MEST). The authors thank Dr. Hyun-Hwi Lee for the operation of the 5A beamline at PAL. Experiments at PAL were supported in part by the MEST and POSTECH.
Immobilization of Large, Aliovalent Cations in the Small-Pore Zeolite K-Natrolite by Means of Pressure†
Article first published online: 4 APR 2012
Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Angewandte Chemie International Edition
Volume 51, Issue 20, pages 4848–4851, May 14, 2012
How to Cite
Lee, Y., Lee, Y., Seoung, D., Im, J.-H., Hwang, H.-J., Kim, T.-H., Liu, D., Liu, Z., Lee, S. Y., Kao, C.-C. and Vogt, T. (2012), Immobilization of Large, Aliovalent Cations in the Small-Pore Zeolite K-Natrolite by Means of Pressure. Angew. Chem. Int. Ed., 51: 4848–4851. doi: 10.1002/anie.201201045
- Issue published online: 8 MAY 2012
- Article first published online: 4 APR 2012
- Manuscript Received: 8 FEB 2012
- Korean Ministry of Education, Science, and Technology (MEST)
- high-pressure chemistry;
- ion exchange;
- X-ray diffraction;
High-pressure ion exchange of small-pore zeolite K-natrolite allows immobilization of nominally non-exchangeable aliovalent cations such as trivalent europium. A sample exchanged at 3.0(1) GPa and 250 °C contains about 4.7 EuIII ions per unit cell, which is equivalent to over 90 % of the K+ cations being exchanged (see picture).