Method for preparing metal oxide nanosheets
AssigneeAgency for Science, Technology and Research
InventorsJackie Y. Ying, Ayman Amin Abdelhamid
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Abstract
The present invention generally relates to a method for preparing metal oxide nanosheets. In a preferred embodiment, graphene oxide (GO) or graphite oxide is employed as a template or structure directing agent for the formation of the metal oxide nanosheets, wherein the template is mixed with metal oxide precursor to form a metal oxide precursor-bonded template. Subsequently, the metal oxide precursor-bonded template is calcined to form the metal oxide nanosheets. The present invention also relates to a lithium-ion battery anode comprising the metal oxide nanosheets. In a further preferred embodiment, the battery anode may comprising reduced template, which is reduced graphene oxide (rGO) or reduced graphite oxide.
Claims11
A method of preparing metal oxide nanosheets comprising:
- a) mixing a template with at least one metal oxide precursor at a temperature between 20° C. to 50° C. to form a metal oxide precursor-bonded template, wherein the at least one metal oxide precursor is selected from the group consisting of metal halide, metal alkoxide, metal nitrate, metal diketone (metal dione), metal salt of a saturated fatty acid and combinations thereof;
- and wherein the at least one metal oxide precursor comprises a metal selected from groups 3, 4, 5, 6, 7, 8, 9, 10, 11 or 12 of the Periodic Table of Elements;
- and
- b) calcining the metal oxide precursor-bonded template obtained in operation a) to form the metal oxide nanosheets, wherein the metal oxide nanosheets have a thickness of 0.5 nm to 10 nm.
Dependencies are inferred from the claim text.