This review describes recent research in the development of tank systems based on complex metal hydrides for thermolysis and hydrolysis. Commercial applications using complex metal hydrides are limited, especially for thermolysis-based systems where so far only demonstration projects have been performed. Hydrolysis-based systems find their way in space, naval, military and defense applications ...

In this work, we have described an alternative alkenylation approach to illustrate the metal-like behaviour of iodine in cross-coupling reactions. Alkenylation could proceed through iodide catalysed radical initiation, radical addition and iodine promoted alkenyl functionality recovery. Catalytic HI elimination similar to the β-hydride elimination of transition metals was realized for the radic...

The transition metal free catalytic hydroboration of aldehydes and ketones is very limited and has not been reported with a well-defined silicon(iv) compound. Therefore, we chose to evaluate the previously reported silicon(iv) hydride [PhC(NtBu)2SiHCl2], (1) as a single component catalyst and found that it catalyzes the reductive hydroboration of a range of aldehydes with pinacolborane (HBpin) ...

This paper presents an overview of the principles of hydrogen energy production, storage, and util ization. Hydrogen production wil l cover a whole array of methods including electrolysis, thermolysis, photolysis, thermochemical cycles, and production from biomass. H ydrogen storage will cover al l modes of gaseous, liquid, slush, and metal hydride storage. Hydrogen uti l ization will focus on ...

As a part of the production of nitride nuclear fuel for use in fast nuclear reactors, zirconium is hydrided followed by nitriding and mixing with uranium nitride. This work concludes a study of unwanted metallic particles present in a powder that is supposed to be a zirconium hydride. Sponge zirconium was hydrided at different temperatures and different time intervals, and the resulting hydride...

Treatment of CrCl3 with sodium octahydrotriborate, NaB3H8, affords a thermally unstable purple liquid thought to be a chromium(III) hydride of stoichiometry CrH(B3H8)2. This hydride converts rapidly at room temperature to the chromium(II) complex Cr(B3H8)2, which adopts a square-planar structure in which four hydrogen atoms form the coordination sphere of the chromium atom. This chromium(II) sp...

As reported earlier, the metal hydride YHx reveals spectacular switchable optical properties. In this Letter we report on another remarkable property of the hydrogen deficient YH32d trihydride phase. A logarithmic temperature dependence of the electrical resistivity is observed within a large temperature range s20 # T # 200 Kd for hydrogen deficiencies 0.01 , d , 0.15. This dependence may be re...

Cadmium bis(tetrahydroborate) has been prepared from dimethyl cadmium and H3B T H F in tetrahydrofuran. Low temperature ll3Cd N M R spectra recorded for THF, monoglyme and diglyme solutions show a septet with l/ ( ll3Cd'H) = 273 Hz. This proves that the BH4“ groups are bound to the metal centre via triple hydride bridges. Reaction o f Cd(BH4) 2 with LiBH4 yields LiCd(BH4) 3 quantitatively in di...

The interaction of [BH(x)]- and [NH(x)]-containing species gives rise to molecular hydrogen and the establishment of the B-N bond. Up to now, metal amides and ammonia are the commonly used [NH(x)] sources. Herein, urea, an organic carbonyl diamide, was used to react with Ca(BH4)2. A new type of complex hydride Ca(BH4)2·4CO(NH2)2 was synthesized with release of ca. 5.2 wt% hydrogen below 250 °C.

With regard to incompatible and low efficiency of lithium-ion batteries, nickel metal hydride batteries and nickel-chrome charger, a generalized smart charger is designed in this paper, which adopts single chip control circuit to make battery charge intelligentize, using on-chip integrated 10-bit A/D converter and 8-bit pulse width modulation (PWM) output, to ensure that the charger with a high...