نتایج جستجو برای: magnesium hydride
تعداد نتایج: 42914 فیلتر نتایج به سال:
Due to its relatively low cost, high hydrogen yield, and environmentally friendly hydrolysis byproducts, magnesium hydride (MgH2) appears to be an attractive candidate for hydrogen generation. However, the hydrolysis reaction of MgH2 is rapidly inhibited by the formation of a magnesium hydroxide passivation layer. To improve the hydrolysis properties of MgH2-based hydrides we investigated three...
Realizing rapid and stable hydrogen sorption at low temperature is critical for magnesium-based storage materials. Herein, liquid channels are built in magnesium hydride by introducing lithium borohydride ion conductors as an efficient route improving its sorption. For instance, the 5 wt% LiBH4-doped MgH2 can release about 7.1 wt.% H2 within 40 min 300 °C but pure only desorbs less than 0.7 H2,...
The elements calcium, magnesium, aluminum, silicon and potassium are part of oil shales, precisely they found in the mineral matrix. In this work, hydrotreating a dynamic regime (21°C/min) under standard hydrogen pressure (1atm) was carried out these were followed quantitatively before after reaction by dispersive X-ray diffraction technique (RXD). compounds formed hydrides which mainly fuels,...
Hydrogen is regarded as a promising solution to fulfill the energy demand of Mars human base in future. Through in-situ resource utilization (ISRU) on Mars, composite metal-organic frameworks (MOFs) and magnesium hydride which demonstrates synergistic effect physi- chemisorption has been proposed be an attractive approach for long-term hydrogen storage. MOFs may act either scaffolds confine Mg ...
The Cover Feature shows a concerted carbonyl hydroboration mechanism involving Mg−O, B−H, and C=O bonds. Homoleptic magnesium alkoxides catalyze ketone with turn-over frequency (TOF) reaching up to 59,400 h−1 exhibit exceptional functional group tolerance. This TOF is so far the best observed in main catalyst without involvement of metal hydride intermediate. newly proposed finds general applic...
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