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.
Claims39
A polymer comprising -[MN2]— as a repeating unit, 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 further comprises one or more residual groups.
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.
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 a sterically demanding group or a group that protects a low coordination number for M;
- 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.
A method of producing a polymer, said method comprising:
- (i) reacting Cr with (CH3)3SiCH2 to produce Cr4[(CH3)3SiCH2]8and
- (ii)reacting Cr4[(CH3)3SiCH2]8with hydrazine to produce a polymer, the polymer comprising repeating units selected from the group consisting of —[CrN2]—, —[Cr2N3]—, and mixtures thereof.
A method of storing hydrogen in a system, said method comprising:
- (i) providing a polymer in the system, 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;
- (ii)adding hydrogen to the system;
- and
- (iii) allowing the hydrogen to bind with the polymer.
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.
Dependencies are inferred from the claim text.