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Figure 5
In situ PXRD patterns (the wavelength of the X-rays is 0.207286 Å) of pressurized Mg(OH)2 in pure CO2 using a flow rate of 25 mL min−1 during heating after stopping the gas flow at 495°C (a, c) and holding for 60 min (b, d) at 1.5 bar (a, b) and at 35 bar (c, d). The calculated reference patterns of Mg(OH)2 (PDF # 00–044–1482), MgO (PDF # 00–045–0946), MgCO3 (PDF # 01–086–2348) and MgO·2MgCO3 (PDF # 00–031–0804) are shown at the bottom.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 31| Part 1| January 2024| Pages 77-84
https://doi.org/10.1107/S1600577523009591
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