TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Composition: (C) comprises at least one of the one or more cations other than (I) derived from either of (A) or (B), respectively.(A) is represented by the formula of MI-XH_X, where MI is one or more cationic species other than (I) and x represents an average valence state of MI.(B) is represented by the formula of MII-y(OH)y, MII-y(OH)y.wH2O, where MII is one or more cationic species other than (I) and y represents an average valence state of MII, and w represents a stoichiometric amount of hydrated water. The MI and MII are different or same cationic species. The MI and MII are a complex cationic species comprising two distinct cationic species.The MI is aluminum (Al), arsenic (As), boron (B), barium (Ba), beryllium (Be), calcium (Ca), cadmium (Cd), cerium (Ce), cesium (Cs), copper (Cu), europium (Eu), iron (Fe), gallium (Ga), gadolinium (Gd), germanium (Ge), hafnium (Hf), mercury (Hg), indium (In), potassium (K), lanthanum (La), lithium (Li), magnesium (Mg), manganese (Mn), sodium (Na), neodymium (Nd), nickel (Ni), lead (Pb), praseodymium (Pr), rubidium (Rb), antimony (Sb), scandium (Sc), selenium (Se), silicon (Si), samarium (Sm), tin (Sn), strontium (Sr), thorium (Th), titanium (Ti), thallium (Tl), vanadium (V), tungsten (W), yttrium (Y), ytterbium (Yb), zinc (Zn) and/or zirconium (Zr); and the MII is methyl, ethyl, propyl, Al, As, B, Ba, Be, Ca, Cd, Ce, Cs, Cu, Eu, Fe, Ga, Gd, Ge, Hf, Hg, In, K, La, Li, Mg, Mn, Na, Nd, Ni, Pb, Pr, Rb, Sb, Sc, Se, Si, Sm, Sn, Sr, Th, Ti, Tl, V, W, Y, Yb, Zn and/or Zr. The MI and MII are each elements of Al, B, Ba, Be, Ca, Cs, K, Li, Mg, Na, Rb, Si, Sr, Ti and/or V (preferably Al, B, Be, Ca, K, Li, Mg, Na, Sr and/or Ti).(C) is a complex oxide.(B) comprises an organic group.(A) is lithium hydride, sodium hydride, potassium hydride, beryllium hydride, magnesium hydride, calcium hydride, strontium hydride, titanium hydride, aluminum hydride, boron hydride, lithium borohydride, sodium borohydride, magnesium borohydride, calcium borohydride, lithium alanate, sodium alanate, magnesium alanate and/or calcium alanate; and (B) is lithium hydroxide, sodium hydroxide, potassium hydroxide, beryllium hydroxide, magnesium hydroxide, calcium hydroxide, strontium hydroxide, titanium hydroxide, aluminum hydroxide and/or boron hydroxide.(B) is hydrated lithium hydroxide, hydrated sodium hydroxide, hydrated potassium hydroxide, hydrated barium hydroxide, hydrated barium hydroxide, hydrated lithium aluminum hydroxide and/or hydrated magnesium aluminum hydride.The hydride of the regenerated first storage material and the hydroxide of the regenerated second storage material are the same species as the first and the second starting materials, comprising the hydride and the hydroxide, respectively. The oxide comprises a complex higher-order oxide. The dehydrogenated state comprises an oxide. In the power device, the hydrogen supply source delivers hydrogen at a temperature and pressure above ambient conditions to the storage material via the filler passage.Preferred Catalyst: The catalyst comprises a compound comprising an element of Ti, V, Cr, C, Fe, Mn, Ni, Nb, Pd, Si and/or Al.Preferred Process: The reaction proceeds according to a reaction mechanism of e.g. lithium hydride reacts with lithium hydroxide to give lithium oxide and hydrogen; or sodium hydride reacts with lithium hydroxide to give 1/2 molecule of lithium oxide, 1/2 molecule of sodium oxide and hydrogen; aluminum hydride reacts with aluminum hydroxide to give aluminum oxide, and 3 molecules of hydrogen; calcium hydride reacts with calcium hydroxide to give calcium oxide, 2 molecules of hydrogen; strontium hydride reacts with strontium hydroxide to give strontium oxide, 2 molecules of hydrogen; boron hydride reacts with boron hydroxide to give boron oxide, 3 molecules of hydrogen; beryllium hydride reacts with beryllium hydroxide to give beryllium oxide, 2 molecules of hydrogen; and beryllium hydride reacts with beryllium hydroxide to give beryllium oxide, 2 molecules of hydrogen.The preparation of (I) is reversible to form a species of (A) or (B). The reversible reaction is conducted by exposing (C) to (I) to form the species. The reversible reaction regenerates (A) and (B). The preparation of (I) is conducted at an elevated temperature (preferably 40degreesC or greater) relative to ambient conditions.(A) and (B) are in particle form and the reaction is a solid-state reaction. (A) and (B) are reduced in particle size prior to the reaction. (A) and (B) are essentially homogeneously mixed together before conducting the reaction. The oxide composition and/or hydrogen are removed from (A) and (B) during the reaction. (I) is a removed as the reaction proceeds during the reaction. The preparation of (I) is conducted in the presence of a catalyst in contact with (A) and (B). The method of releasing (I) from storage material, is reversed by exposing the oxide material to hydrogen to form a regenerated first storage material comprising a hydride and a regenerated second storage material comprising a hydroxide. The method of producing a source of hydrogen gas further comprises regenerating the hydrogenated starting material composition by exposing the dehydrogenated product to hydrogen gas. The dehydrogenated product comprises an oxide. The regenerating is conducted at an elevated temperature relative to ambient conditions. The liberating is conducted in the presence of a catalyst in contact with the starting material composition. The mixture further characterized in that the release of hydrogen results in formation of an oxide. The hydrogen storage material is dehydrogenated, the hydrogen provided to the power device regenerates the storage material from the dehydrogenated state to a regenerated hydrogenated state. The storage unit is capable of being removed from the power device to regenerate the storage material from a dehydrogenated state to a regenerated hydrogenated state.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Composition: (C) comprises at least one of the one or more cations other than (I) derived from either of (A) or (B), respectively.(A) is represented by the formula of MI-XH_X, where MI is one or more cationic species other than (I) and x represents an average valence state of MI.(B) is represented by the formula of MII-y(OH)y, MII-y(OH)y.wH2O, where MII is one or more cationic species other than (I) and y represents an average valence state of MII, and w represents a stoichiometric amount of hydrated water. The MI and MII are different or same cationic species. The MI and MII are a complex cationic species comprising two distinct cationic species.The MI is aluminum (Al), arsenic (As), boron (B), barium (Ba), beryllium (Be), calcium (Ca), cadmium (Cd), cerium (Ce), cesium (Cs), copper (Cu), europium (Eu), iron (Fe), gallium (Ga), gadolinium (Gd), germanium (Ge), hafnium (Hf), mercury (Hg), indium (In), potassium (K), lanthanum (La), lithium (Li), magnesium (Mg), manganese (Mn), sodium (Na), neodymium (Nd), nickel (Ni), lead (Pb), praseodymium (Pr), rubidium (Rb), antimony (Sb), scandium (Sc), selenium (Se), silicon (Si), samarium (Sm), tin (Sn), strontium (Sr), thorium (Th), titanium (Ti), thallium (Tl), vanadium (V), tungsten (W), yttrium (Y), ytterbium (Yb), zinc (Zn) and/or zirconium (Zr); and the MII is methyl, ethyl, propyl, Al, As, B, Ba, Be, Ca, Cd, Ce, Cs, Cu, Eu, Fe, Ga, Gd, Ge, Hf, Hg, In, K, La, Li, Mg, Mn, Na, Nd, Ni, Pb, Pr, Rb, Sb, Sc, Se, Si, Sm, Sn, Sr, Th, Ti, Tl, V, W, Y, Yb, Zn and/or Zr. The MI and MII are each elements of Al, B, Ba, Be, Ca, Cs, K, Li, Mg, Na, Rb, Si, Sr, Ti and/or V (preferably Al, B, Be, Ca, K, Li, Mg, Na, Sr and/or Ti).(C) is a complex oxide.(B) comprises an organic group.(A) is lithium hydride, sodium hydride, potassium hydride, beryllium hydride, magnesium hydride, calcium hydride, strontium hydride, titanium hydride, aluminum hydride, boron hydride, lithium borohydride, sodium borohydride, magnesium borohydride, calcium borohydride, lithium alanate, sodium alanate, magnesium alanate and/or calcium alanate; and (B) is lithium hydroxide, sodium hydroxide, potassium hydroxide, beryllium hydroxide, magnesium hydroxide, calcium hydroxide, strontium hydroxide, titanium hydroxide, aluminum hydroxide and/or boron hydroxide.(B) is hydrated lithium hydroxide, hydrated sodium hydroxide, hydrated potassium hydroxide, hydrated barium hydroxide, hydrated barium hydroxide, hydrated lithium aluminum hydroxide and/or hydrated magnesium aluminum hydride.The hydride of the regenerated first storage material and the hydroxide of the regenerated second storage material are the same species as the first and the second starting materials, comprising the hydride and the hydroxide, respectively. The oxide comprises a complex higher-order oxide. The dehydrogenated state comprises an oxide. In the power device, the hydrogen supply source delivers hydrogen at a temperature and pressure above ambient conditions to the storage material via the filler passage.Preferred Catalyst: The catalyst comprises a compound comprising an element of Ti, V, Cr, C, Fe, Mn, Ni, Nb, Pd, Si and/or Al.Preferred Process: The reaction proceeds according to a reaction mechanism of e.g. lithium hydride reacts with lithium hydroxide to give lithium oxide and hydrogen; or sodium hydride reacts with lithium hydroxide to give 1/2 molecule of lithium oxide, 1/2 molecule of sodium oxide and hydrogen; aluminum hydride reacts with aluminum hydroxide to give aluminum oxide, and 3 molecules of hydrogen; calcium hydride reacts with calcium hydroxide to give calcium oxide, 2 molecules of hydrogen; strontium hydride reacts with strontium hydroxide to give strontium oxide, 2 molecules of hydrogen; boron hydride reacts with boron hydroxide to give boron oxide, 3 molecules of hydrogen; beryllium hydride reacts with beryllium hydroxide to give beryllium oxide, 2 molecules of hydrogen; and beryllium hydride reacts with beryllium hydroxide to give beryllium oxide, 2 molecules of hydrogen.The preparation of (I) is reversible to form a species of (A) or (B). The reversible reaction is conducted by exposing (C) to (I) to form the species. The reversible reaction regenerates (A) and (B). The preparation of (I) is conducted at an elevated temperature (preferably 40degreesC or greater) relative to ambient conditions.(A) and (B) are in particle form and the reaction is a solid-state reaction. (A) and (B) are reduced in particle size prior to the reaction. (A) and (B) are essentially homogeneously mixed together before conducting the reaction. The oxide composition and/or hydrogen are removed from (A) and (B) during the reaction. (I) is a removed as the reaction proceeds during the reaction. The preparation of (I) is conducted in the presence of a catalyst in contact with (A) and (B). The method of releasing (I) from storage material, is reversed by exposing the oxide material to hydrogen to form a regenerated first storage material comprising a hydride and a regenerated second storage material comprising a hydroxide. The method of producing a source of hydrogen gas further comprises regenerating the hydrogenated starting material composition by exposing the dehydrogenated product to hydrogen gas. The dehydrogenated product comprises an oxide. The regenerating is conducted at an elevated temperature relative to ambient conditions. The liberating is conducted in the presence of a catalyst in contact with the starting material composition. The mixture further characterized in that the release of hydrogen results in formation of an oxide. The hydrogen storage material is dehydrogenated, the hydrogen provided to the power device regenerates the storage material from the dehydrogenated state to a regenerated hydrogenated state. The storage unit is capable of being removed from the power device to regenerate the storage material from a dehydrogenated state to a regenerated hydrogenated state. EXAMPLE - Lithium hydride (0.248 g) and lithium hydroxide (0.756 g) were mixed to form the hydrogenated mixture using standard ball milling techniques at room temperature at ambient conditions for 60 minutes. The mixture was then heated at a rate of 2degreesC per minute up to a maximum temperature of 300degreesC and the mixture was worked up to give hydrogen (6.25 wt.%).