F258 (2008)

F258 (2008). Reversed crystal growth of zeolite A.

TEM images of a zeolite A particle and corresponding SAED patterns obtained from the entire particle, a) original particle and b) the same particle after beam irradiation for a few minutes. The cubic diffraction patterns were actually from only a very thin crystalline shell. The core was amorphous. [J. F. Yao, D. Li, X. Y. Zhang, C. H. Kong, W. B. Yue, W. Z. Zhou, H. T. Wang, Angew. Chem. Int. Ed. 47, 8397-8399 (2008)].