초록 ▼

It discloses a vanadium-titanium compound material with high thermal stability and high activity and a preparation method thereof. The vanadium-titanium compound material is mainly composed of vanadium oxide and titanium oxide, where the content of vanadium oxide is 0.5% to 30% by mass of the vanadi

It discloses a vanadium-titanium compound material with high thermal stability and high activity and a preparation method thereof. The vanadium-titanium compound material is mainly composed of vanadium oxide and titanium oxide, where the content of vanadium oxide is 0.5% to 30% by mass of the vanadium-titanium compound material, and the crystal form of titanium oxide in the vanadium-titanium compound material is one of anatase and TiO2(B) or a mixture thereof.

대표청구항 ▼

1. A method for preparing a vanadium-titanium compound material, comprising: adding titanium oxide containing the crystal form TiO2(B) to a vanadium-containing precursor solution, fully stirring, standing still for 6 to 8 h, drying, and then roasting at 300° C. to 700° C.; whereinthe vanadium-contai

1. A method for preparing a vanadium-titanium compound material, comprising: adding titanium oxide containing the crystal form TiO2(B) to a vanadium-containing precursor solution, fully stirring, standing still for 6 to 8 h, drying, and then roasting at 300° C. to 700° C.; whereinthe vanadium-containing precursor solution is prepared from a vanadium-containing precursor, the vanadium-containing precursor including metavanadate, vanadyl sulfate or vanadyl oxalate. 2. The method for preparing a vanadium-titanium compound material according to claim 1, wherein a content of the crystal form TiO2(B) in the titanium oxide containing the crystal form TiO2(B) is 1% to 100%. 3. The method for preparing a vanadium-titanium compound material according to claim 2, wherein the content of the crystal form TiO2(B) in the titanium oxide having the crystal form TiO2(B) is 5% to 100%. 4. The method for preparing a vanadium-titanium compound material according to claim 1, wherein the titanium oxide containing the crystal form TiO2(B) has a specific surface area of 10 to 300 m2/g, a pore volume of 0.02 to 1.0 cm3/g, and an average pore size of 1.0 to 50 nm. 5. The method for preparing a vanadium-titanium compound material according to claim 1, wherein the vanadium-containing precursor solution is prepared by mixing the vanadium-containing precursor with water or an organic alcohol. 6. The method for preparing a vanadium-titanium compound material according to claim 5, wherein the organic alcohol is ethanol. 7. The method for preparing a vanadium-titanium compound material according to claim 1, wherein a concentration of the vanadium-containing precursor in the vanadium-containing precursor solution is 1 to 6 mol/L. 8. The method for preparing a vanadium-titanium compound material according to claim 1, wherein a liquid-solid ratio of the vanadium-containing precursor solution to the titanium oxide containing the crystal form TiO2(B) is 0.5 to 1.0 mL/g. 9. A method for preparing a vanadium-titanium compound material, comprising: preparing a vanadium-containing precursor solution by mixing a vanadium-containing precursor and a solvent, wherein the vanadium-containing precursor is metavanadate, vanadyl sulfate or vanadyl oxalate, andthe solvent is water or an organic alcohol;adding titanium oxide containing the crystal form TiO2(B) to the vanadium-containing precursor solution;stirring the vanadium-containing precursor solution to which the titanium oxide containing the crystal form TiO2(B) has been added to form a mixture;allowing the mixture to stand for 6to 8h and then drying the mixture to form a dried mixture; andcalcinating the dried mixture at 300° C. to 700° C. to obtain the vanadium-titanium compound material. 10. The method for preparing a vanadium-titanium compound material according to claim 9, wherein a content of the crystal form TiO2(B) in the titanium oxide containing the crystal form TiO2(B) is 1% to 100%. 11. The method for preparing a vanadium-titanium compound material according to claim 10, wherein the content of the crystal form TiO2(B) in the titanium oxide having the crystal form TiO2(B) is 5% to 100%. 12. The method for preparing a vanadium-titanium compound material according to claim 9, wherein the titanium oxide containing the crystal form TiO2(B) has a specific surface area of 10to 300 m2/g, a pore volume of 0.02 to 1.0 cm3/g, and an average pore size of 1.0 to 50 nm. 13. The method for preparing a vanadium-titanium compound material according to claim 9, wherein the organic alcohol is ethanol. 14. The method for preparing a vanadium-titanium compound material according to claim 9, wherein a concentration of the vanadium-containing precursor in the vanadium-containing precursor solution is 1 to 6 mol/L. 15. The method for preparing a vanadium-titanium compound material according to claim 9, wherein a liquid-solid ratio of the vanadium-containing precursor solution to the titanium oxide containing the crystal form TiO2(B) is 0.5 to 1.0 mL/g.