Mg/H2O reactionFinite rateHeat release rateTowards new-concept magnesium-based hydroreactive metal fuel propulsion,finite rate calculations of magnesium combustion in steam atmospheres based on chemical reaction dynamics is to be investigated,and its underlying thermoacoustic oscillations is to be ...
After the hydrothermal reaction (HR), the autoclave was cooled down in air automatically, and the specimens were removed from the vessel, washed with DI water and ethanol several times, and dried in air at room temperature. After drying for one day, the hydrothermally treated samples were ...
we shall assume that the reaction orders for both components are unity. Let the mass of fillerbemf, with solid residue massms, and the mass of polymer bemp. Then if the initial mass of the composite ism0and the component mass fractions areμj=mj/m0(j=f, p, s), the corresponding...
Analysis of silica content: took about 700mg sample, weighed to 0.1mg; took it into a 150ml beaker; added 20ml 1mol/L sulfuric acid, heating in the steam bath for 1.5h; decant the supernatant, and filter it with sterile filter paper; then the residue should be washed with hot water ...
Hence, effective heat exchange and minimal heat loss are essential to obtain reaction heat from waste heat. Giap et al. [13] reported a novel reversible SOFC system coupled with an MH and waste steam, with an estimated system efficiency of 52.6 % under the assumption of heat insulation. ...
In situ formation of layered double hydroxides (LDH) on metallic surfaces has recently been considered a promising approach for protective conversion surface treatments for Al and Mg alloys. In the case of Mg-based substrates, the formation of LDH on the
However, the O2 selectivity to CO2 (Figure 5f) was below 100% for all catalysts and at all reaction temperatures, implying the concurrence of H2 oxidation. This was also confirmed by the conversion of H2 (Figure 5c), which was observed earlier over the Co-based oxide catalysts. An increase...
Because the protons in the electrolyte are involved in the 4-NP electroreduction process, the pH value has a significant effect on the reaction activity. The results show that the highest activity is obtained at pH = 6.0, with CV current of −135.5 μA and overpotential of −0.679 V. ...
The PMR values are calculated with 𝑀MgMMg = 24.3 g/mol and 𝜌MgρMg = 1.73 g/cm33 according to the following equation: PMR=𝑀p·𝜌Mg𝑥·𝑀Mg·𝜌pPMR=Mp·ρMgx·MMg·ρp (13) Here, the index p stands for the formed reaction product and x for the number of magnesiu...
reaction parameters included the temperature, reaction time, pH, and concentration of the aluminum source. The relationship between the parameters and corrosion resistance performance of each coating was compared with the chemical composition, electrochemical corrosion current, and hydrogen evolution rate. ...