Examples of structures and results from powder diffraction studies

Structures and results from powder diffraction studies are shown in many places in this book. Here we will briefly describe two recent examples to illustrate the potential and status of powder diffraction for studies of hydride materials (i) stmctural determination of Mg(BD4)2 and (ii) in situ experiments and quantitative phase analysis to study the desorption process in different AID3 phases. 

7 Observed (circles), calculated (upper line) and difference (bottom) (a) synchrotron X-ray and (b) neutron diffraction patterns for Mg(BD4)2. The Bragg positions for individual phases are shown with ticks. From Cernyef al. [21] and reproduced with permission. Copyright Wiley-VCH Verlag GmbH Co. KGaA. 

8 Synchrotron X-ray diffraction patterns showing the desorption as a function of temperature for (a) P-AID3 and (b) Y-AID3. The heating rate is 1 K/min and a new diffraction pattern is collected every second minute. Reprinted in part with permission from Grove et al. [26]. Copyright (2007) American Chemistry Society. 

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