Mesoporous phosphate based glass
AssigneeUniversity of Surrey
InventorsFarzad Foroutan, Daniela Carta
Life of this patent
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Abstract
The disclosure provides a method of producing a mesoporous phosphate-based glass. The method comprises (a) contacting a phosphate with an alcohol and/or a glycol ether to create a reaction mixture; (b) contacting the reaction mixture with alkali metal cations and/or alkaline earth metal cations; (c) contacting the alcohol, the glycol ether or the reaction mixture with a surfactant, wherein the surfactant is configured to provide channel-like pores in the resultant mesoporous phosphate-based glass; (d) allowing the reaction mixture to gel; and (e) calcinating the gel to obtain the mesoporous phosphate-based glass.
Claims20
A method of producing a mesoporous phosphate-based glass comprising between 40 and 90 mol % phosphorus pentoxide, the method comprising:
- contacting a phosphate with an alcohol and/or a glycol ether to create a reaction mixture;
- wherein the phosphate is PO(OC4H9)3, PO(OC4H9)2(OH) or PO(OC4H9) (OH)2, or a combination thereof;
- contacting the reaction mixture with alkali metal cations and/or alkaline earth metal cations;
- contacting the alcohol, the glycol ether or the reaction mixture with a surfactant, wherein the surfactant is configured to provide channel-like pores in the resultant mesoporous phosphate-based glass;
- allowing the reaction mixture to gel;
- and
- calcinating the gel to obtain the mesoporous phosphate-based glass;
- thereby producing a mesoporous phosphate-based glass comprising between 40 and 90 mol % phosphorus pentoxide.
A mesoporous phosphate-based glass comprising between 40 and 90 mol % phosphorus pentoxide obtained or obtainable by a method comprising:
- contacting a phosphate with an alcohol and/or a glycol ether to create a reaction mixture, wherein the phosphate is PO(OC4H9)3, PO(OC4H9)2(OH) or PO(OC4H9) (OH)2, or a combination thereof;
- contacting the reaction mixture with alkali metal cations and/or alkaline earth metal cations;
- contacting the alcohol, the glycol ether or the reaction mixture with a surfactant, wherein the surfactant is configured to provide channel-like pores in the resultant mesoporous phosphate-based glass;
- allowing the reaction mixture to gel;
- and
- calcinating the gel to obtain the mesoporous phosphate-based glass.
A phosphate-based glass comprising:
- between 40 and 90 mol % phosphorus pentoxide;
- between 5 and 60 mol % alkaline earth metal oxide and/or between 1 and 50 mol % alkali metal oxide;
- and
- pores with an average diameter of between 2 and 50 nm, wherein the pores are channel-like.
Dependencies are inferred from the claim text.