Abstract Rocket fuels are subjected to intense in-flight inertial, pressure and thermal loads that has drastic effect on its performance. In order achieve optimal results, we require functionally-graded solid propellant (FGSPs), specifically designed for each flight condition. A novel series of FGSPs were developed using Paraffin Wax (as fuel) Hydroxyl-terminated polybutadiene binder); treated ...

The hydride shift mechanism of D-Xylose Isomerase converts D-glucose to D-fructose. In this work, we compute features of a “hydroxide once” mechanism for the hydride shift with quantum chemical calculations based on the 3KCO (linear) and 3KCL (cyclic) X-ray/neutron structures. The rigid boundary conditions of the active site “shoe-box”, together with ionization states and proton orientations, e...

Substituted bis(iminophosphoranyl)methanes are CH acidic compounds that can form complexes with formally dianionic central carbon centres. The reaction of H2C(Ph2P=NDip)2 (≡H2L), Dip = 2,6-diisopropylphenyl, with one equivalent of di-n-butylmagnesium afforded the methanide complex [HLMgnBu] 1. Treatment of Complex 1 with phenylsilane in aromatic solvents at elevated temperatures afforded the me...

There are many different systems of an autonomous energy storage including accumulators and devices for renewable energy. Systems based on reversible metal hydrogenation have recently been introduced. The selection metals is considerations temperature pressure conditions the hydrogenation/dehydrogenation cycle, as well desired hydrogen capacity. Magnesium one main challenging with respect to th...

For the few past decades, study of new hydrogen storage materials has been captivating scientists worldwide. Magnesium hydride, MgH2, is considered one most promising due to its low cost, high capacity, reversibility and abundance Mg. However, it requires further research improve performance as some drawbacks such poor dehydrogenation kinetic, operational temperature, which limit practical appl...