Effects of Gd2O3 doping on the structure and the conduction mechanism of K2Mg2(SO4)3 langbeinite ceramics: A comparative study

Souamti, Ahmed; Chehimi, Dalila Ben Hassen

doi:10.1016/j.mseb.2020.115040

Cited by 9 publications

(1 citation statement)

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“…Langbeinite (K 2 Mg 2 (SO 4 ) 3 ) was synthesized using magnesium sulfate heptahydrate (MgSO 4 •7H 2 O) and anhydrous potassium sulfate (K 2 SO 4 ) which was mixed according to a molar ratio of 2:1 [34], and ground for 1 h. The ground materials were put into a muffle furnace, heated at 973 K for 3 h, and then removed immediately and placed at room temperature to quench. The quenched product was ground for 20 min, then heated again at 673 K for about 24 h. The product was immediately placed at room temperature, left to cool, and then bottled.…”

Section: Synthesis Of Magnesium Sulfate Double Saltsmentioning

confidence: 99%

Spectroscopy of Magnesium Sulfate Double Salts and Their Implications for Mars Exploration

Shi,

Zhang,

Zeng

et al. 2024

Remote Sensing

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Magnesium sulfate has been widely detected on the surface of Mars. The occurrence of magnesium sulfate and mixed cationic sulfates preserves clues regarding the sedimentary environment, hydrological processes, and climate history of ancient Mars. In this study, seven magnesium sulfate double salts were synthesized in the laboratory using a high-temperature solid phase reaction or slow evaporation of aqueous solutions. The samples were analyzed using X-ray diffraction to confirm their phase and homogeneity. Subsequently, the Raman, mid-infrared spectra, and visible near-infrared spectra of these samples were collected and analyzed. Our results showed that the spectra of the analyzed magnesium sulfate double salts exhibited distinctive spectral features. These laboratory results may provide new insights for the identification of various magnesium sulfate double salts on Mars during the interpretation of in situ data collected by Scanning Habitable Environments with Raman and Luminescence for Organics and Chemicals (SHERLOC), SuperCam, and the ExoMars Raman Laser Spectrometer (RLS). In addition, the MIR and VNIR spectra features obtained in this study provide an improved reference and spectra library for decipherment of data sourced from the Thermal Emission Spectrometer (TES), Thermal Emission Imaging System (THEMIS), and Mars Mineralogical Spectrometer (MMS).

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Section: Synthesis Of Magnesium Sulfate Double Saltsmentioning

confidence: 99%