The inlet and outlet flow rates of each gas were used to calculate the CO, O2 and H2 conversions (Equations (1)–(3), respectively), CO2 and CH4 yields (Equations (4) and (5), respectively) and O2 selectivity to CO2 (Equation (6)). From these equations and the knowledge of the ...
topotaxy. The hexagonal close-packedanions in Mg(OH)2are converted to the cubic close-packed MgO, initially distorted so that the (111) product spacing matches the (0001) spacing of the reactant. Reactions of samples composed of small crystals fitted the F1 equation withEa=125 kJ mol−1...
MgO nanoparticles (nMgO; US Research Nanomaterials Inc.) had a purity of 99+%, with an average diameter of 20 nm and polyhedral morphology. MgO has a true density of 3.58 g/cm3. For this study, MgO nanoparticles were sterilized through heating in an oven at 200 °C for one ho...
These ions react with electrolyte constituents by the formation of insoluble, electrical isolating compounds and forming dense anodic barrier layer. In the context of PEO treatment, the process is called passivation. This so-called passive layer has a high electrical resistance, which causes a ...
Among the metal oxide templates, MgO receives much interest for the following advantages [39,40]: (1) MgO has good thermal and chemical stability, hence the structure and composition of MgO will not change and it will not react with carbide during the carbonization process; (2) MgO is recyc...
An in situ Mg-Al hydrotalcite (LDH) film was prepared using a one-step hydrothermal method on the surface of a medical magnesium alloy. The importance and influence of the reaction parameters on the corrosion resistance of the LDH coatings were optimized