Abstract: This disclosure describes various configurations and components for bimetallic and trimetallic claddings for use as a wall element separating nuclear material from an external environment. The cladding materials are suitable for use as cladding for nuclear fuel elements, particularly for fuel elements that will be exposed to sodium or other coolants or environments with a propensity to react with the nuclear fuel.

Abstract: Identifying a stable phase of a binary alloy comprising a solute element and a solvent element. In one example, at least two thermodynamic parameters associated with grain growth and phase separation of the binary alloy are determined, and the stable phase of the binary alloy is identified based on the first thermodynamic parameter and the second thermodynamic parameter, wherein the stable phase is one of a stable nanocrystalline phase, a metastable nanocrystalline phase, and a non-nanocrystalline phase.

Abstract: The invention provides a processing method for upgrading an organic phase substance by removing heavy element species from the organic phase substance originating from a resource substance in mild environmental conditions, and further provides a method for collecting removed heavy element species and a method for collecting other substances.

Abstract: This invention provides a method of promoting bone healing by locally administering a vanadium-based insulin mimetic agent to a patient in need thereof. The invention also provides a new use of insulin-mimetic vanadium compounds for manufacture of medicaments for accelerating bone-healing processes. In addition, the invention also encompasses a bone injury treatment kit suitable for localized administration of insulin-mimetic vanadium compounds or compositions thereof to a patient in need of such treatment.

Abstract: In a dry etching method for etching a metal film formed on a substrate by use of etching gas containing ?-diketone, the metal film contains at least one metal material that forms a penta- or hexa-coordinated complex structure with ?-diketone; the etching gas containing ?-diketone contains at least one additive among H2O or H2O2; and the additive is contained at a volume concentration of 1% or greater and 20% or less.

Abstract: A vanadium-based hydrogen permeation alloy for a membrane, a method of manufacturing the same, and a method of using a membrane including the same are provided. The vanadium-based hydrogen permeation alloy for a membrane includes nickel (Ni) at more than 0 atm % and 5 atm % or less, iron (Fe) at 5 atm % to 15 atm %, yttrium (Y) at more than 0 atm % and 1 atm % or less, and a remainder of vanadium and impurities.

Abstract: A negative electrode active material for an electric device includes an alloy containing Si in a range of greater than or equal to 27% by mass and less than 100% by mass, Sn in a range of greater than 0% by mass and less than or equal to 73% by mass, V in a range of greater than 0% by mass and less than or equal to 73% by mass, and inevitable impurities as a residue. The negative electrode active material can be obtained with, for example, a multi DC magnetron sputtering apparatus by use of Si, Sn, and V as targets. An electric device using the negative electrode active material can achieve long cycle life and ensure a high capacity and cycle durability.

Abstract: Provided herein are materials that can achieve up to 14% hydrogen absorption by weight in ambient conditions, which is a marked improvement over the hydrogen absorption values found in the prior art. Further provided are experimental conditions necessary to produce these materials. In order to produce the hydrogen storage material, a transition metal (or Lithium) is vaporized in a pi bond gas in conditions that permit only a few bonding collisions to occur between the vaporized transition metal atoms and pi bond gas molecules before the resulting bonded material is collected.

Abstract: The present invention relates to pulverulent materials suitable for storing hydrogen, and more particularly to a method of preparing such a material, in which: (A) a composite metallic material having a specific granular structure is prepared by co-melting the following mixtures: a first metallic mixture (m1), which is an alloy (a1) of body-centered cubic crystal structure, based on titanium, vanadium, chromium and/or manganese, or a mixture of these metals in the proportions of the alloy (a1); and a second mixture (m2), which is an alloy (a2), comprising 38 to 42% zirconium, niobium, molybdenum, hafnium, tantalum and/or tungsten and 56 to 60 mol % of nickel and/or copper, or else a mixture of these metals in the proportions of the alloy (a2), with a mass ratio (m2)/(m1+m2) ranging from 0.1 wt % to 20 wt %; and (B) the composite metallic material thus obtained is hydrogenated, whereby the composite material is fragmented (hydrogen decrepitation).

Abstract: A metallic material is made from at least one refractory metal or an alloy based on at least one refractory metal. The metallic material has an oxygen content of about 1,000 to about 30,000 ?g/g and the oxygen is interstitial.

Abstract: Nanomaterial preparation methods, compositions, and articles are disclosed and claimed. Such methods can provide nanomaterials with improved morphologies relative to previous methods. Such materials are useful in electronic applications.

Abstract: Catalysts are provided which can catalyze both the oxygen reduction during the discharge of a secondary air battery and the oxygen production in the recharging of the battery and which are stable at a high potential in the recharging. The invention has been accomplished based on the finding that a catalyst including an oxycarbonitride of a specific transition metal selected from, for example, titanium, zirconium, hafnium, vanadium, niobium and tantalum can catalyze both the oxygen reduction during the discharge of a secondary air battery and the oxygen production in the recharging of the battery and is also stable at a high potential in the recharging.

Abstract: The presence of mycotoxins in agricultural products necessitates large scale testing of a wide range of sample material to ensure the safety of food and feed. The mycotoxin ochratoxin A represents an enablement for all mycotoxins as the level of sensitivity necessary for regulatory requirements for this compound at the part per billion level are as low or lower than any other mycotoxin. This invention describes the identification of a set of DNA ligands with sufficiently high binding affinity and specificity for ochratoxin A to enable an improvement over existing methods for the separation, concentration and quantitative determination of ochratoxin A in sample material.

Abstract: The ammonia decomposition catalyst of the present invention is a catalyst for decomposing ammonia into nitrogen and hydrogen, including a catalytically active component containing at least one kind of transition metal selected from the group consisting of molybdenum, tungsten, vanadium, chromium, manganese, iron, cobalt, and nickel, preferably including: (I) a catalytically active component containing: at least one kind selected from the group consisting of molybdenum, tungsten, and vanadium; (II) a catalytically active component containing a nitride of at least one kind of transition metal selected from the group consisting of molybdenum, tungsten, vanadium, chromium, manganese, iron, cobalt, and nickel; or (III) a catalytically active component containing at least one kind of iron group metal selected from the group consisting of iron, cobalt, and nickel, and at least one metal oxide, thereby making it possible to effectively decompose ammonia into nitrogen and hydrogen at relatively low temperatures and at

Abstract: The present invention pertains to wear-resistant components for internal combustion engines, particularly piston rings, especiallly piston rings that feature a wear protection layer with iron base alloy on their surface that is subjected to wear and are characterized in that they are manufactured of a coating powder by means of high-velocity flame spraying (HVOF), wherein the coating is single-phase and comprises the elements Fe, Cr, V and C, and wherein VC forms mixed crystals and also leads to a dispersion strengthening. The present invention furthermore pertains to a method for manufacturing wear-resistant components for internal combustion engines, particularly piston rings, according to the present invention.

Abstract: A thermoelectric material has a composition expressed by (Fe1-pVp)100-x(Al1-qSiq)x (0.35?p?0.7, 0.01?q?0.7, 20?x?30 atomic %). The thermoelectric material includes a crystal phase having an L21 structure or a crystal phase having a B2 structure as a main phase.

Abstract: To provide a production process of an electrode catalyst for fuel cell whose initial voltage is high and whose endurance characteristics, especially, whose voltage drop being caused by high-potential application is less. A production process according to the present invention of an electrode catalyst for fuel cell is characterized in that: it includes: a dispersing step of dispersing a conductive support in a solution; a loading step of dropping a platinum-salt solution, a base-metal-salt solution and an iridium-salt solution to the resulting dispersion liquid, thereby loading respective metallic salts on the conductive support as hydroxides under an alkaline condition; and an alloying step of heating the conductive support with metallic hydroxides loaded in a reducing atmosphere to reduce them, thereby alloying them.

Abstract: The hydrogen storage alloy has, as a main phase thereof, a bcc structure phase having a composition represented by TixCryVzXw wherein 3/2?y/x?3/1, 50?z?75 mol %, 0?w?5 mol %, and x+y+z+w=100 mol %, and X represents any one or more selected from Al, Si, and Fe. The hydrogen storage device is a device using the alloy. The preparation process of a hydrogen storage alloy includes the steps of: melting/casting raw materials mixed to give the composition represented by TixCryVzXw; heat-treating an ingot obtained in the melting/casting step; and subjecting the heat-treated ingot to a hydrogen storing/releasing treatment at least once to activate the ingot.

Abstract: Provided herein are materials that can achieve up to 14% hydrogen absorption by weight in ambient conditions, which is a marked improvement over the hydrogen absorption values found in the prior art. Further provided are experimental conditions necessary to produce these materials. In order to produce the hydrogen storage material, a transition metal (or Lithium) is vaporized in a pi bond gas in conditions that permit only a few bonding collisions to occur between the vaporized transition metal atoms and pi bond gas molecules before the resulting bonded material is collected.

Abstract: A thermoelectric material has a composition expressed by (Fe1-pVp)100-x(Al1-qSiq)x (0.35?p?0.7, 0.01?q?0.7, 20?x?30 atomic %). The thermoelectric material includes a crystal phase having an L21 structure or a crystal phase having a B2 structure as a main phase.

Abstract: A BCC phase hydrogen storage alloy capable of storing approximately 4.0 wt. % hydrogen and delivering reversibly up to 3.0 wt. % hydrogen at temperatures up to 110° C. The hydrogen storage alloys also possess excellent kinetics whereby up to 80% of the hydrogen storage capacity of the hydrogen storage alloy may be reached in 30 seconds and 80% of the total hydrogen storage capacity may be desorbed from the hydrogen storage alloy in 90 seconds. The hydrogen storage alloys also have excellent stability which provides for long cycle life.

Abstract: A reversible hydrogen storage alloy capable of storing large amounts of hydrogen and delivering reversibly large amounts of hydrogen at temperatures ranging from 0° C. up to 40° C. The hydrogen storage alloy is generally composed of titanium, vanadium, and chromium. The alloy may further include manganese. Modifier elements such as zirconium, iron, nickel, molybdenum, ruthenium, and/or cobalt, and scavenger elements such as misch metal, calcium, and/or magnesium may be included in the alloy to improve performance.

Abstract: A method for absorbing and releasing hydrogen comprises applying repeatedly hydrogen pressurization and depressurization to a hydrogen storage metal alloy of a body-centered cubic structure-type phase exerting a two-stage or inclined plateau characteristic in a hydrogen storage amount vs hydrogen pressure relation in an appropriate fashion to absorb and release hydrogen. At least at one stage during the release of hydrogen, the temperature (T2) of the above-mentioned hydrogen storage metal alloy is made higher than the temperature (T1) of the hydrogen storage metal alloy during the hydrogen absorption process (T2>T1). This enables the release and utilization of occluded hydrogen at a low-pressure plateau region or an inclined plateau lower region.

Abstract: A gamma radiation source comprising selenium-75 or a precursor therefore, wherein the selenium is provided in the form of one or more thermally stable compounds, alloys, or mixed metal phases.

Abstract: A method for absorbing and releasing hydrogen comprises applying repeatedly hydrogen pressurization and depressurization to a hydrogen storage metal alloy of a body-centered cubic structure-type phase exerting a two-stage or inclined plateau characteristic in a hydrogen storage amount vs hydrogen pressure relation in an appropriate fashion to absorb and release hydrogen. At least at one stage during the release of hydrogen, the temperature (T2) of the above-mentioned hydrogen storage metal alloy is made higher than the temperature (T1) of the hydrogen storage metal alloy during the hydrogen absorption process (T2>T1). This enables the release and utilization of occluded hydrogen at a low-pressure plateau region or an inclined plateau lower region.

Abstract: A hydrogen storage material includes a vanadium-based body-centered cubic matrix phase containing at least titanium and nickel in solid solution in the matrix phase. There is a positive correlation between the titanium concentration distribution in the matrix phase and the nickel concentration distribution in the matrix phase. The hydrogen storage material has a high activation characteristic and can be produced without heat-treatment at low cost. The material has the ground formula V160−x−y−zTixCryNiz, where 5≦x≦15, 5≦y≦25, 0<z<(½)x and z<5.

Abstract: A process is provided for the production of porous non-evaporable getter materials comprising at least one first element selected from Zr and Ti and at least one second element selected from V, Cr, Mn and Ni. The starting metal powders are produced by reduction of the corresponding oxides, with calcium hydride and the thus obtained powders are compacted and sintered at a value of pressure and temperature in a given range. The getter materials due to the production process, have a novel distribution of chemical composition through the getter body, resulting in an improved combination of mechanical and gas-sorption properties.

Abstract: A hydride battery electrode is coated with palladium or a palladium alloy to improve hydride storage properties and recycle characteristics. A hydrogen purification membrane including a metallic substrate likewise has improved properties upon coating with palladium and a surface species of an alkali metal, alkaline earth element or alkaline earth cation. Novel metal hydrogen purification membranes include vanadium alloyed with at least 1 to 20 atomic percent nickel and/or 1 to 20 atomic percent cobalt and/or 1 to 20 atomic percent palladium.

Abstract: To provide a hydrogen absorbing alloy having a BCC (body-centered cubic structure) as a crystal structure, and particularly a hydrogen-absorbing alloy for a nickel-hydride cell having excellent discharge capacity and durability (cycle characteristics), said hydrogen-absorbing alloy having a composition expressed by the general formula Ti(100−a−b−c−d)CraVbNicXd, where X is at least one member selected from the group consisting of Y (yttrium), lanthanoids, Pd and Pt, and each of a, b, c and d is represented, in terms of at %, by the relations 8≦a≦50, 30<b≦60, 5≦c≦15, 2≦d≦10 and 40≦a+b+c+d≦90, wherein the crystal structure of a principal phase is a body-centered cubic structure, and further, the alloy contains at least one of Mo and W in place of V and at least one member selected from the group consisting of Y (yttrium), lanthanoids, Pd and Pt, and its crystal structure is converted to the body-centered cubic structure by heat-treatment.

Abstract: It is described a process for the production of porous non-evaporable getter materials comprising at least one first element selected between Zr and Ti and at least one second element selected among V, Cr, Mn and Ni, wherein the starting metal powders are produced by reduction with calcium hydride of the corresponding oxides and the thus obtained powders are compacted and sintered at a value of pressure and temperature in a given range; also described are getter materials that, due to the production process, have a novel distribution of chemical composition through the getter body resulting in an improved combination of mechanical and gas-sorption properties.

Abstract: A modified Ti—V—Zr—Ni—Mn—Cr electrochemical hydrogen storage alloy which has at least one of the following characteristics: 1) an increased charge/discharge rate capability over that the base Ti—V—Zr—Ni—Mn—Cr electrochemical hydrogen storage alloy; 2) a formation cycling requirement which is reduced to one tenth that of the base Ti—V—Zr—Ni—Mn—Cr electrochemical hydrogen storage alloy; or 3) an oxide surface layer having a higher electrochemical hydrogen storage catalytic activity than the base Ti—V—Zr—Ni—Mn—Cr electrochemical hydrogen storage alloy.

Abstract: A hydrogen-absorbing alloy capable of controlling the very fine structure formed by a spinodal decomposition for improving flatness of an emission equilibrium pressure in a practical temperature/pressure range and excellent in activation and hydrogen absorption/desorption amounts, and a production method thereof. The hydrogen-absorbing alloy has a composition expressed by the general formula Ti.sub.x Cr.sub.y V.sub.z (where each of x, y and z represents an atomic percent and satisfies the relation x+y+z=100), wherein the composition has a body-centered cubic structural phase as a principal phase, the principal phase exists within the range in which the body-centered cubic structure appears and a spinodal decomposition occurs with the exception of a C14 (a typical structure of the Laves phase; a MgZn.sub.2 type crystal structure) mono-phase range, and has a regular periodical structure formed by the spinodal decomposition, and its apparent lattice constant is at least 0.2950 nm but is not greater than 0.

Abstract: A container packed with a mixture of powders classified respectively into two or at least three particle-size distribution groups which are different in average particle size, the powders comprising a hydrogen absorbing alloy singly or the combination of such an alloy and a substance not absorbing hydrogen. The mixture is at least 0.03 to not greater than 0.50 in the ratio d.sub.2 /d.sub.1 wherein d.sub.1 is the average particle size of the powder having the particle-size distribution of the largest average particle size, and d.sub.2 is the average particle size of the powder having the particle-size distribution of the second largest average particle size. The weight ratio of the powder to the total weight of the powders is greater when that powder has a particle-size distribution of larger average particle size.

Abstract: Disclosed are a hydrogen storage alloy which contains carbon in a proportion of from 30 to 500 ppm and is represented by the stoichiometric formula A.sub.x B.sub.5.0, wherein A is La or a mixture of La with at least one rare earth metal other than La, B is at least one metal selected from a group consisting of Al, Co, Cr, Cu, Fe, Mn, Ni, Ti, V, Zn and Zr, and x is a rational number in the range 0.95.ltoreq..times..ltoreq.1.00; and has a texture in which only the intermetallic compound phase named AB.sub.5 phase is present and every other intermetallic compound phase is absent: and a method of producing said alloy and an electrode using the same.

Abstract: In the method of the present invention for producing a hydrogen-storing alloy, part or whole of single substance of Zr as a starting material is replaced with a ferrozirconium or a zircalloy. This method enables production of a hydrogen-storing alloy at reduced material and production costs and with high efficiency and safety of work. The alloy produced by this method has high homogeneity with no segregation. It is thus possible to obtain a hydrogen-storing alloy superior in hydrogen-storing characteristics such as hydrogen storage capacity, reaction speed, and electrode reaction efficiency in an electrolyte. It is also possible to obtain, by using this alloy, a nickel-hydrogen storage battery having a large storage capacity and capable of performing quick charging and discharging, while exhibiting longer life and higher economy.

Abstract: Dense monolithic SiC or SiC ceramic composites are strongly bonded using brazing compositions which, in their preferred composition, include a braze alloy consisting essentially of less than 50 weight percent silicon and at least two metals from the group of Fe, Cr, Co and V and produce a joint suitable for use in a high neutron flux environment. Brazing is carried out at a temperature of about 1200.degree. to 1500.degree. C. in an inert atmosphere and is complete in about 15 minutes. Broadly, a genus of brazing compounds are disclosed which include between about 10 and about 45 weight percent silicon and at least two elements selected from the following group: Li, Be, B, Na, Mg, P, Sc, Ti, V, Cr, Mn, Fe, Co, Zn, Ga, Ge, As, Rb, Y, Sb, Te, Cs, Pr, Nd, Ta, W and Tl.

Abstract: There are disclosed pharmaceutical compositions containing polyoxoanions, methods of using them alone or in combination with other compounds, such as AZT and Poly-I:C for the treatment of retroviruses. Also disclosed are novel polyoxoanions.

Abstract: Disclosed is a method of forming a vanadium-rich, multi-component reversible, electrochemical hydrogen storage alloy directly from a vanadium-reductant alloy without first obtaining pure vanadium. In one exemplification the vanadium-reductant alloy is a vanadium-aluminum alloy of low oxygen content, while in another exemplification the vanadium-reductant alloy is refined by electron beam evaporation, and in a third exemplification the vanadium-reductant alloy contains further reductants that reduce the oxygen content without adding impurities to the alloy. The vanadium-reductant alloy is directly used as a precursor in forming the electrochemical hydrogen storage alloy.

Abstract: Four groups of advanced hydrogen hydride storage and hydride electrode materials, consisting of two common elements, titanium and nickel. In the first group of materials, zirconium and chromium are added with the common elements. The second group of materials contain three additional elements in addition to the common elements, namely, chromium, zirconium and vanadium. The third group of materials contain also, in addition to the common elements, zirconium and vanadium. The fourth group of materials adds manganese and vanadium with the common elements. The preparation methods of the materials, as well as their hydride electrode are disclosed. Electrochemical studies indicate that these materials have high capacity, long cycle life and high rate capability.

Abstract: The invention is a weld metal for welding of a titanium alloy member to a ferrous based alloy member as an intermediate transition zone between such members so as to overcome the metallurgical imcompatability of each such member, and which consists of a vanadium metal, titanium and iron and inconsequential amounts of brittle intermetallic compounds. The preferred weld metal is vanadium rich and contains no more than 50% combined weight of titanium and such a weld metal is produced in accordance with our invention by fusion welding, particularly capacitor discharge welding, which because of its inherent but heretofore unrecognized extremely fast quench or freeze rates will produce a fusion weld between these two metallurgically incompatible alloys which is free of brittle intermetallic compounds. It is also part of our invention that such a weld metal of the aforesaid composition will have independent use as a welding alloy, particularly when fabricated in sheet form.

Abstract: The metal composition and the process for producing same relate to the art of alloy metallurgy.The metal composition based on metals of VIII Group and nitrides of metals of III-VII Groups is characterized in that at least one alloy containing at least one metal of VIII Group and at least one metal of III-VII Groups are disintegrated to powder, placed into a nitrogen-containing atmosphere with an excess of nitrogen, burning is initiated by way of a local ignition of the mixture at any point thereof and the excess of nitrogen is maintained till completion of the reaction.The metal composition and process for producing same according to the present invention are useful in the manufacture of hard alloys based on refractory or high-melting compounds.

Abstract: The present invention provides a method for producing a consolidated article composed of a transition metal alloy. The method includes the step of selecting a rapidly solidified alloy which is at least about 50% glassy. The alloy is formed into a plurality of alloy bodies, and these alloy bodies are compacted at a pressing temperature of not more than about 0.6 Ts (solidus temperature in .degree.C.) to consolidate and bond the alloy bodies together into a glassy metal compact having a density of at least about 90% T.D. (theoretical density). The compacted glassy alloy bodies are then heat treated at a temperature generally ranging from about 0.55-0.85 Ts, but, in any case, above the alloy crystallization temperature, for a time sufficient to produce a fine grain crystalline alloy structure in the compacted article.

Abstract: A low-carbon vanadium nitride is prepared in a furnace at an elevated temperature of about 1400.degree. C. under nitrogen atmosphere from a feed material containing a mixture of vanadium oxynitride and carbon. The vanadium oxynitride is prepared by the partial ammonia reduction of a vanadium-containing oxidic compound such as ammonium metavanadate (NH.sub.4 VO.sub.3) or oxides of vanadium such as V.sub.2 O.sub.3 and V.sub.2 O.sub.5.

Abstract: A storage material for hydrogen comprising an alloy with the following composition:______________________________________ Ti(V.sub.1-a-b Fe.sub.a Al.sub.b).sub.x Cr.sub.y Mn.sub.2-x-y, ______________________________________ wherein: x = greater than 1, less than 2 y = 0 to approximately 0.2 x + y = not greater than 2 a = 0 to approximately 0.25 b = 0 to approximately 0.33 a + b = not greater than approximately 0.35 (1 - a - b) .multidot. x = not less than 1 ______________________________________This storage material for hydrogen can, in the cold state, absorb a maximum of 3.2% by weight of H.sub.2 and already possesses, at low temperatures, a high reaction speed for the absorption of hydrogen. During the absorption of hydrogen, the storage material exhibits self-heating to high temperatures. Thus, in addition to its use for storing hydrogen, it is also particularly suitable for use in preheating systems for hydride-type storage units of motor vehicles.

Abstract: A method of producing a vanadium-based metal hydride which comprises reacting hydrogen gas at a temperature between about 0.degree. and 100.degree. C. with a vanadium-based binary solid solution alloy having a body-centered cubic structure and having a formula V.sub.1-x M.sub.x, wherein M is a metal selected from the group consisting of manganese, chromium, cobalt, iron, nickel and mixtures thereof and wherein x varies from at least about 2 atom percent up to the solubility limit of cobalt, iron and nickel and up to about 20 mol % of manganese and up to about 40 mol % of chromium in said solid solution alloy is disclosed.

Abstract: A ternary intermetallic compound having the formula Zr(V.sub.1-x Cr.sub.x).sub.2 where x is in the range of 0.01 to 0.90 is capable of reversibly sorbing hydrogen at temperatures ranging from room temperature to 200.degree. C., at pressures down to 10.sup.-6 Torr. The compound is suitable for use as a hydrogen getter in low pressure, high temperature applications such as magnetic confinement fusion devices.

Abstract: Ferrovanadium carbide addition agents comprising 75 to 85% vanadium, 8 to 12% carbon, 8 to 12% iron, less than 2% oxygen and having a density of from about 5.8 to about 6.2. The addition agents are produced by fusing vanadium oxide, iron and carbon at about 1700.degree. C. to about 2100.degree. C.

Abstract: Vanadium alloys and their fabrication to produce materials for fusion applications having small additions of Ti, C and Zr that improve resistance to helium embrittlement.

Abstract: Four groups of advanced hydrogen hydride storage and hydride electrode materials, consisting of two common elements, titanium and nickel. In the first group of materials, zirconium and chromium are added with the common elements. The second group of materials contain three additional elements in addition to the common elements, namely, chromium, zirconium and vanadium. The third group of materials contain also, in addition to the common elements, zirconium and vanadium. The fourth group of materials adds manganese and vanadium with the common elements. The preparation methods of the materials, as well as their hydride electrode are disclosed. Electrochemical studies indicate that these materials have high capacity, long cycle life and high rate capability.