XAFS Study of Structural Evolution During Calcination of Two Zinc-Chromium Based Lamellar Double Hydroxides A. Ennaqadi, M. Khaldi, A. de Roy, C. Forano et J.P. Besse J. Phys. IV France, 7 C2 (1997) C2-1231-C2-1232 DOI: 10.1051/jp4:19972208