Material to separate and pump oxygen
A material for separating and pumping oxygen is disclosed. The material is a zeolite doped with a chemical element having an electron density of between 30 kJ/mol and 150 kJ/mol. The material is configured for controllable oxygen desorption between 150° C. and 300° C. and pumping the released oxygen into an area having an ambient pressure of less than 100 pascals.
1. A material for separating and pumping oxygen, the material comprising a synthetic aluminophosphate zeolite doped/substituted with a chemical element hafnium at an ion location within a framework of the zeolite.
2. The material of claim 1 , wherein the chemical element has an adsorption energy of between 40 KJ/mol and 60 KJ/mol.
3. The material of claim 1 , wherein the chemical element has an adsorption energy of between 40 KJ/mol and 50 kJ/mol.
4. The material of claim 1 , wherein the chemical element has an adsorption energy of between 80 KJ/mol and 120 KJ/mol.
5. The material of claim 1 , wherein pores within the zeolite have diameters that are between 4 angstroms and 6 angstroms.
6. The material of claim 1 , wherein pores within the zeolite have diameters that are between 6 angstroms and 12 angstroms.
7. The material of claim 1 , wherein the zeolite is ALPO-5 zeolite.
8. The material of claim 1 , wherein the zeolite is VPI-5.
9. The material of claim 1 , wherein the zeolite is SSZ-51.
10. The material of claim 1 , wherein the zeolite is ALPO-52.
11. The material of claim 1 , wherein the zeolite is configured for controllable oxygen sorption between −20° C. and 80° C.
12. The material of claim 1 , wherein the zeolite is configured for controllable oxygen desorption between 100° C. and 300° C.
13. The material of claim 1 , wherein the hafnium is substituted on site 3 of an ALPO-5 structure.
14. The material of claim 1 , wherein the hafnium is substituted on site 4 of an ALPO-5 structure.
15. The material of claim 1 , wherein the hafnium is substituted on sites 3 and 4 of an ALPO-5 structure.