Metal hydrazide materials
OwnerDavid Michael Antonelliinventor
Life of this patent
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Abstract
The present invention provides the following new polymers which are useful for hydrogen storage: (i) a polymer comprising -[MN2]— as a repeating unit, wherein M is selected from the group consisting Sc, Ti, V, Cr, Mn, Fe, Co, Zr, Nb, Mo, and mixtures thereof; and (ii) a polymer comprising -[M2N3]— as a repeating unit, wherein M is selected from the group consisting Sc, Ti, V, Cr, Mn, Fe, Co, Zr, Nb, Mo, and mixtures thereof.
Claims23
A polymer comprising a repeating unit selected from the group consisting of -[MN2]—, -[M2N3]—, and mixtures thereof, wherein M is selected from the group consisting of Sc, Ti, V, Cr, Mn, Fe, Co, Zr, Nb, Mo, and mixtures thereof, and wherein the polymer comprises one or more residual groups in an amount of 25% by weight or less, and wherein the one or more residual groups comprise one or more atoms selected from the group consisting of C, N, and H.
A system for storing hydrogen, the system comprising a storage tank and a polymer inside the storage tank, wherein the polymer comprises
- repeating units selected from the group consisting of -[MN2]—, [M2N3]—, and mixtures thereof, wherein M is selected from the group consisting Sc, Ti, V, Cr, Mn, Fe, Co, Zr, Nb, Mo, and mixtures thereof;
- and
- one or more residual groups present in an amount of 40% by weight or less, the residual group comprising one or more atoms selected from the group consisting of C, N and H.
A method of producing a polymer, said method comprising:
- (i) reacting M with R to produce compounds selected from the group consisting of MR3, MR4, and mixtures thereof, wherein M is selected from the group consisting Sc, Ti, V, Cr, Mn, Fe, Co, Zr, Nb, Mo, and mixtures thereof, and
- R is an alkyl group, an alkenyl group, an alkynyl group, an aryl group, an amido group, or an alkoxy group;
- and
- (ii) reacting the compounds selected from the group consisting of MR3, MR4, and mixtures thereof with hydrazine in an inert atmosphere to produce a polymer comprising repeating units selected from the group consisting of -[MN2]—, -[M2N3]—, and mixtures thereof, and wherein the steps of reacting the compounds selected from the group consisting of MR3, MR4, and mixtures thereof with hydrazine is carried out in the presence of a solvent.
Dependencies are inferred from the claim text.