Catalyst solvents for carbon nitride
OwnerCharles Montrossinventor
Life of this patent
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Abstract
In one embodiment, a method of producing an sp3 bonded C3N4 product includes contacting a starting material with a catalyst solvent in a reaction vessel, heating the reaction vessel to a temperature of 900° to 2000° C. under a pressure of 4 to 8 GPa, melting at least some of the catalyst solvent, and transforming at least some of the sp2 bonded C3N4 into sp3 hybridized C3N4. The starting material may include sp2 bonded C3N4. The catalyst solvent may be a solid at room temperature. In one example, the catalyst solvent is a carbo-nitride based catalyst solvent including a first compound having the chemical formula AxByNz and a second compound having the chemical formula DqErCs. In a second example, the catalyst solvent is a metal alloy based catalyst solvent including a compound having the chemical formula GxHy.
Claims19
A method of producing an sp3 bonded C3N4 product, the method comprising:
- contacting a starting material with a catalyst solvent in a reaction vessel;
- wherein the starting material comprises sp2 bonded C3N4;
- wherein the catalyst solvent is solid at room temperature;
- heating the reaction vessel to a temperature of 900° to 2000° C. under a pressure of 4 to 8 GPa;
- melting at least some of the catalyst solvent;
- transforming at least some of the sp2 bonded C3N4 into sp3 hybridized C3Na4
- wherein the catalyst solvent is a carbo-nitride based catalyst solvent comprising:
- a first compound, the first compound having the chemical formula AxByNz
- wherein A is selected from the group consisting of the transition metals, lanthanide metals and Ca;
- wherein B is selected from the group consisting of the Group IIIB metalloid elements, the Group IVB metalloid elements, Mg, Zn, and Cd;
- wherein N is nitrogen;
- wherein x is from 2.5 to 3.5;
- wherein y is from 0.5 to 1.5;
- wherein z is from 0.5 to 1.5;
- and
- a second compound, the second compound having the chemical formula DqErCs
- wherein D is selected from the group consisting of the transition metals, lanthanide metals and Ca;
- wherein E is selected from the group consisting of the Group IIIB metalloid elements, the Group IVB metalloid elements, Mg, Zn, and Cd;
- wherein C is carbon;
- wherein q is from 2.5 to 3.5;
- wherein r is from 0.5 to 1.5;
- wherein s is from 0.5 to 1.5;
- wherein the stoichiometric ratio of the number of moles of carbon of the second compound to the number of moles of nitrogen of the first compound in the catalyst solvent is from 2.5:4 to 3.9:4.
A method of producing an sp3 bonded C3N4 product, the method comprising:
- contacting a starting material h a catalyst solvent in a reaction vessel;
- wherein the starting material comprises sp2 bonded C3N4;
- wherein the catalyst solvent is solid at room temperature;
- heating the reaction vessel to a temperature of 900° to 2000° C. under a pressure of 4 to 8 GPa;
- melting at least some of the catalyst solvent;
- and
- transforming at least some of the sp2 bonded C3N4 into sp3 hybridized C3N4;
- wherein the catalyst solvent is a metal alloy based catalyst solvent comprising a compound, having the chemical formula GxHy;
- wherein G is selected from the group consisting of the transition metals, lanthanide metals and Ca;
- wherein H is selected from the group consisting of the Group IIIB metalloid elements, the Group IVB metalloid elements, Mg, Zn, and Cd.
A method of producing sp3 bonded C3N4 product, the method comprising:
- contacting a starting material with a catalyst solvent ire a reaction vessel;
- wherein the starting material comprises sp2 bonded C3N4;
- wherein the catalyst solvent is solid at room temperature;
- heating the reaction vessel to a temperature of 900° to 2000° C. under a pressure of 4 to 8 GPa;
- melting at least some of the catalyst solvent;
- transforming at least some of the sp2 bonded C3N4 into sp3 hybridized C3N4;
- and
- seeding the reaction vessel with particles of a crystal seed material comprising diamond.
Dependencies are inferred from the claim text.