2014
DOI: 10.1039/c4ce01641f
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Synthesis, electron microscopy and X-ray characterization of oxymagnesite, MgO·2MgCO3, formed from amorphous magnesium carbonate

Abstract: The first electron microscopy images of the peculiar oxymagnesite crystal are presented along with the synthesis description and crystallographic data.

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Cited by 7 publications
(4 citation statements)
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“…Although the intensity of the XRD peaks was weak after 165 °C for 15 min, most of the diffraction peaks could be indexed to integrated magnesium oxide (MgO; reference pattern code: 00‐004‐0829 in X′Pert HighScore Plus) and magnesium oxide carbonate (Mg 3 O(CO 3 ) 2 ; reference pattern code: 00‐031‐0804 in X′Pert HighScore Plus). The reflections were in good agreement with the reported data by the Joint Committee on Powder Diffraction Standards as well as previous studies . After holding at 165 °C for 30 min, the characteristic peaks of MgO disappeared, and magnesium oxide carbonate that contained a trace amount of magnesium oxalate dihydrate (MgC 2 O 4 ⋅2 H 2 O; reference pattern code: 00‐028‐0625 in X′Pert HighScore Plus) became the major phase.…”
Section: Resultssupporting
confidence: 90%
See 1 more Smart Citation
“…Although the intensity of the XRD peaks was weak after 165 °C for 15 min, most of the diffraction peaks could be indexed to integrated magnesium oxide (MgO; reference pattern code: 00‐004‐0829 in X′Pert HighScore Plus) and magnesium oxide carbonate (Mg 3 O(CO 3 ) 2 ; reference pattern code: 00‐031‐0804 in X′Pert HighScore Plus). The reflections were in good agreement with the reported data by the Joint Committee on Powder Diffraction Standards as well as previous studies . After holding at 165 °C for 30 min, the characteristic peaks of MgO disappeared, and magnesium oxide carbonate that contained a trace amount of magnesium oxalate dihydrate (MgC 2 O 4 ⋅2 H 2 O; reference pattern code: 00‐028‐0625 in X′Pert HighScore Plus) became the major phase.…”
Section: Resultssupporting
confidence: 90%
“…No reports indicated the use of this peculiar intermediate. The synthesis and characterization of Mg 3 O(CO 3 ) 2 was presented by Frykstrand and co‐workers, but a complicated multistep procedure were employed. Useful inspiration and guidelines for the synthesis of Mg 3 O(CO 3 ) 2 might be given by our study.…”
Section: Resultsmentioning
confidence: 99%
“…In the same line, recent study reveals that oxymagnesite forms as an intermediate during the thermal decomposition of hydrated magnesium carbonate [37]. Moreover, oxymagnesite can also be formed as a product of reaction between Mg (OH) 2 and CO 2 in anhydrous synthesis [29] and/or solid-state reaction of MgO and CO 2 using steam [38].…”
Section: -40supporting
confidence: 50%
“…Apart from the difference in the MgO content, the MMC in this study had no differences in the composition when compared with the materials presented in our previous studies (<20 wt%, compared to $50 wt% previously). 22,23,47,50,51,62 Aggregate formation mechanism…”
Section: The Pore System Of and The Surface Of MMCmentioning
confidence: 99%