The diffraction data of the initially prepared sample also identified a few impurity phases, such as Sc2Se3 (3.7 wt%), MgSe (7.4 wt%), Mg (3.6 wt%), and Sc2O3 (1.5 wt%), which suggest that the reaction is incomplete and that a small amount of metal oxide impurities...
A dense magnesium iron silicate polymorph with a structure intermediate between olivine, ringwoodite, and wadsleyite was theoretically predicted about four decades ago. As this group of minerals constitute the major component of shocked meteorites, constraining their transitional forms and behaviour is of...
The crystal structure of magnesium oxide can be suitably characterized using X-ray diffraction (XRD) (JCPDS Standard No. 87-0653), where significant peaks can be assigned close to the 2θθ angle values of 36.8, 42.9, 62.2, 74.6, and 78.6°, which can be indexed to the lattice planes (...
The oxide layer formed on the surface hinders the decomposition of H2 and the surface permeation of H, leading to a significant decrease in the hydrogen absorption/desorption rate [36]. Moreover, prolonged hydrogen absorption/desorption can also lead to the pulverization of the particles and the ...
In this work, a cost-effective chitin-based magnesium oxide (CHt@MgO) biocomposite with excellent anionic methyl orange (MO) dye removal efficiency from water was developed. The CHt@MgO biocomposite was characterized by FT-IR, XRD, SEM-EDX, and TGA/DTG. Results proved the successful synthesis...
However, KNO3 has a relatively high melting point (334 °C) because of strong electrostatic forces between the K+ and NO3− ions, which create a stable lattice structure in the solid state. However, if the ionic mobility were significantly higher, the lattice could be easily disrupted, ...
[32] have prepared the Bi nanoparticle-anchored reduced graphene oxide (Bi/RGO) by in situ reduction of GO and Bi+ under solvothermal condition at 100 °C under a N2 atmosphere, which was used as anodes in MIBs and expected to improve the electrochemical performance by increasing the ...
To make H2 dissociate on an Mg surface, an extra portion of energy—the so-called activation energy Eact—has to be supplied. The origin of this activation barrier is mainly determined by electronic factors [30,31,32,33], but the hydrogen behavior is also influenced by an oxide film on ...
Cerium oxide–polysulfone composite separator for an advanced alkaline electrolyzer. Polymers 2020, 12, 2821. [Google Scholar] [CrossRef] Verma, S.; Sinha-Ray, S.; Sinha-Ray, S. Electrospun CNF supported ceramics as electrochemical catalysts for water splitting and fuel cell: A review. Polymers...
One of them could be X-ray photoelectron spectroscopy (XPS) for the investigation of the complex oxide films that could be formed on the particles’ surfaces. Another useful procedure could be mixing the particles with carbon and resin, polishing the solidified mixture, and investigating the ...