摘要:
Complex hydrides based on Al(BH4)3 are stabilized by the presence of one or more additional metal elements or organic adducts to provide high capacity hydrogen storage material.
摘要:
In accordance with the present disclosure, a process for synthesis of a complex hydride material for hydrogen storage is provided. The process includes mixing a borohydride with at least one additive agent and at least one catalyst and heating the mixture at a temperature of less than about 600° C. and a pressure of H2 gas to form a complex hydride material. The complex hydride material comprises MAlxByHz, wherein M is an alkali metal or group IIA metal, Al is the element aluminum, x is any number from 0 to 1, B is the element boron, y is a number from 0 to 13, and z is a number from 4 to 57 with the additive agent and catalyst still being present. The complex hydride material is capable of cyclic dehydrogenation and rehydrogenation and has a hydrogen capacity of at least about 4 weight percent.
摘要:
In one embodiment, a hydrogen storage system includes a core of hydrogen sorbent material and a shell of crystalline metal hydride material enclosing at least a portion of the core of hydrogen sorbent material. In another embodiment, the hydrogen storage system further includes an intermediate layer of amorphous metal hydride material, at least a portion of which being positioned between the core of hydrogen sorbent material and the shell of crystalline metal hydride material.
摘要:
State-of-the-art electronic structure calculations yield results consistent with the observed compound SiLi2Mg and provide likelihood of the availability of IrLi2Mg and RhLi2Mg. Similar calculations provide likelihood of the availability of YLi2MgHn, ZrLi2MgHn, NbLi2MgHn, MoLi2MgHn, TcLi2MgHn, RuLi2MgHn, RhLi2MgHn, LaLi2MgHn, Ce4+Li2MgHn, Ce3+Li2MgHn, PrLi2MgHn, NdLi2MgHn, PmLi2MgHn, SmLi2MgHn, EuLi2MgHn, GdLi2MgHn, TbLi2MgHn, DyLi2MgHn, HoLi2MgHn, ErLi2MgHn, TmLi2MgHn, YbLi2MgHn, LuLi2MgHn, HfLi2MgHn, TaLi2MgHn, ReLi2MgHn, OsLi2MgHn, and IrLi2MgHn (here n is an integer having a value in a particular compound of 4-7) as solid hydrides for the storage and release of hydrogen. Different hydrogen contents may be obtained in compounds having the same XLi2Mg crystal structures. These materials offer utility for hydrogen storage systems.
摘要:
State-of-the-art electronic structure calculations provide the likelihood of the availability of AlLi2MgHn, ScLi2MgHn, TiLi2MgHn, VLi2MgHn, CrLi2MgHn, MnLi2MgHn, FeLi2MgHn, CoLi2MgHn, NiLi2MgHn, CuLi2MgHn, ZnLi2MgHn, GaLi2MgHn, GeLi2MgHn, PdLi2MgHn, AgLi2MgHn, CdLi2MgHn, InLi2MgHn, SnLi2MgHn, SbLi2MgHn, PtLi2MgHn, AuLi2MgHn, HgLi2MgHn, TlLi2MgHn, PbLi2MgHn, and BiLi2MgHn (here n is an integer having a value in a particular compound of 4-7) as solid hydrides for the storage and release of hydrogen. Different hydrogen contents may be obtained in compounds having the same XLi2Mg crystal structures. These materials offer utility for hydrogen storage systems.
摘要:
In one embodiment, a hydrogen storage system includes a core of hydrogen sorbent material and a shell of crystalline metal hydride material enclosing at least a portion of the core of hydrogen sorbent material. In another embodiment, the hydrogen storage system further includes an intermediate layer of amorphous metal hydride material, at least a portion of which being positioned between the core of hydrogen sorbent material and the shell of crystalline metal hydride material.
摘要:
State-of-the-art electronic structure calculations provide the likelihood of the availability of AlLi2MgHn, ScLi2MgHn, TiLi2MgHn, VLi2MgHn, CrLi2MgHn, MnLi2MgHn, FeLi2MgHn, CoLi2MgHn, NiLi2MgHn, CuLi2MgHn, ZnLi2MgHn, GaLi2MgHn, GeLi2MgHn, PdLi2MgHn, AgLi2MgHn, CdLi2MgHn, InLi2MgHn, SnLi2MgHn, SbLi2MgHn, PtLi2MgHn, AuLi2MgHn, HgLi2MgHn, TlLi2MgHn, PbLi2MgHn, and BiLi2MgHn (here n is an integer having a value in a particular compound of 4-7) as solid hydrides for the storage and release of hydrogen. Different hydrogen contents may be obtained in compounds having the same XLi2Mg crystal structures. These materials offer utility for hydrogen storage systems.
摘要:
The invention relates to a metal-containing, hydrogen-storing material which contains a catalyst for the purpose of hydration or dehydration, said catalyst being a metal carbonate. The method for producing such a metal-containing, hydrogen-storing material is characterized by subjecting the metal-containing material and/or the catalyst in the form of a metal carbonate to a mechanical milling process.
摘要:
A hydrogen storage alloy includes a composition defined by the following formula (Ca1-XLX)(Li1-Y-ZMYNiZ)m, wherein the L denotes one or more elements selected from the group consisting of Na, K, Rb, Cs, Mg, Sr, Ba, Sc, Ti, Zr, Hf, V, Nb, Ta, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, and Lu, the M denotes one or more elements selected from the group consisting of Cr, Mo, W, Mn, Fe, Ru, Co, Ir, Ni, Pd, Pt, Cu, Ag, Au, Zn, Cd, B, Al, Ga, In, Si, Ge, Sn, Pb, Sb, Bi, and S, and the mole ratios X, Y, Z, and m respectively satisfy the following 0
摘要:
Hydrocarbon-soluble molybdenum catalyst precursors include a plurality of molybdenum cations that are each bonded with a plurality of organic anions to form an oil soluble molybdenum salt. A portion of the molybdenum atoms are in the 3+ oxidation state such that the plurality of molybdenum atoms has an average oxidation state of less than 4+, e.g., less than about 3.8+, especially less than about 3.5+. The catalyst precursors can form a hydroprocessing molybdenum sulfide catalyst in heavy oil feedstocks. The oil soluble molybdenum salts are manufactured in the presence of a reducing agent, such as hydrogen gas, to obtain the molybdenum in the desired oxidation state. Preferably the reaction is performed with hydrogen or an organic reducing agent and at a temperature such that the molybdenum atoms are reduced to eliminate substantially all molybdenum oxide species.