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US 2024/0375970 A1Published application
Multifunctional co-ordination framework materials
AssigneeRux Technology Pty Ltd
InventorsJehan Rux Rustom KANGA, Cameron John KEPERT
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Abstract
Disclosed herein is a class of co-ordination framework materials having various useful properties. The co-ordination frameworks comprise complexes of M2[M1(CN)6] or Ax(M2[M1(CN)6]), wherein M is selected from V, Cr, Mn, Fe, Co, Ni, Cu, Ag, Au, Zn, Ru, Rh, Pd and Pt; M1 is selected from Fe and Ru; A (when present) is located in the pores of the framework and is selected from Li+, Na+, K+, Be2+, Mg2+ and Ca2+; and x (when present) is 0<x≤8. Also disclosed are methods of making said materials and various uses of said materials.
Claims16
1:
- A co-ordination framework comprising complexes of Formula (I)
- M2[M′(CN)6] Formula (I)
- wherein
- M is selected from V, Cr, Mn, Fe, Co, Ni, Zn, Ru, Rh, Pd and Pt and the framework has a face-centred cubic Fm 3m structure;
- or
- M is selected from Cu, Ag and Au and the framework has a tetragonal P4/mmm structure;
- and
- M′ is selected from Fe and Ru;
- wherein the co-ordination framework is desolvated;
- and when M′ is Ru, the framework exhibits zero or negative thermal expansion over a temperature range of 0 to 700 K;
- provided that when and M′ is Fe, M is not Mn, Co, Ni, Cu or Fe.
8 more elements
2:
- A co-ordination framework according to claim 1, wherein M is selected from Cr, Mn, Fe, Co, Ni, Cu, Zn, Ru and Rh.
3:
- A co-ordination framework according to claim 1, wherein one of the following applies:
- i) M is in the +2 oxidation state;
- ii) M is in the +3 oxidation state.
4:
- A co-ordination framework according to claim 1, wherein one of the following applies:
- i) M′ is in the +2 oxidation state;
- or
- ii) M′ is in the +3 oxidation state.
1 more element
5:
- A co-ordination framework according to claim 1, wherein M is Cu.
6:
- A co-ordination framework according to claim 1, wherein one or more M or [M′(CN)6] groups and/or M2[M′(CN)6] complexes are absent from the framework.
7:
- A co-ordination framework according to claim 1, wherein the co-ordination framework further comprises a pore surface modifying agent.
8:
- A co-ordination framework according to claim 7, wherein the pore surface modifying agent is selected from NH3, ethylene diamine (H2NCH2CH2NH2), pyridine, monofluoroC1-10alkylamine, polyfluoroC1-10alkylamine, perfluoroC1-10alkylamine, tetrahydrofuran (THF) and thiophene.
9:
- A highly crystalline co-ordination framework comprising complexes of Formula (III)
- M2[M′(CN)6] Formula (III)
- wherein
- M is selected from V, Cr, Mn, Fe, Co, Ni, Zn, Ru, Rh, Pd and Pt and the framework has a face-centred cubic Fm 3m structure;
- or
- M is selected from Cu, Ag and Au and the framework has a tetragonal P4/mmm structure;
- and
- M′ is selected from Fe and Ru,
- wherein the co-ordination framework is desolvated, the framework has an overall neutral charge, and when M′ is Ru, the framework exhibits zero or negative thermal expansion over a temperature range of 0 to 700 K.
6 more elements
10:
- A co-ordination framework according to claim 9, wherein M is selected from Cr, Mn, Fe, Co, Ni, Cu, Zn, Ru and Rh.
11:
- A co-ordination framework according to claim 9, wherein the co-ordination framework comprising complexes of Formula (III) is a co-ordination framework comprising complexes of Formula (IV)
- Ax(M2[M′(CN)6]) Formula (IV)
- wherein
- A is selected from Li+, Na+ and K+, 0<x≤8, and A is located in the pores of the framework.
1 more element
12:
- A method of preparing a modified co-ordination framework, the method comprising contacting a co-ordination framework according to claim 1 with a pore surface modifying agent.
13:
- The method of claim 12, wherein the pore surface modifying agent is selected from NH3, ethylene diamine (H2NCH2CH2NH2), pyridine, monofluoroC1-10alkylamine, polyfluoroC1-10alkylamine, perfluoroC1-10alkylamine, tetrahydrofuran (THF) and thiophene.
14:
- An energy storage device comprising a co-ordination framework of claim 1.
15:
- The device of claim 14, wherein the energy storage device is a battery or a gas storage device.
16:
- The device according to claim 15, wherein the gas storage device is a hydrogen, oxygen or methane gas storage device.