Method for manufacturing two-dimensional nanosheets
AssigneeIndustry-Academic Cooperation Foundation, Yonsei University
InventorsSeong Ju Hwang, Xiaoyan Jin
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Abstract
Proposed is a two-dimensional nanosheet, which can significantly improve catalytic efficiency by realizing a two-dimensional nanosheet structure with a high specific surface area including a metal material having an amorphous crystal structure as an electrochemical catalyst to fully utilize the characteristics of a metal oxide catalyst material with excellent electrical conductivity and, at the same time, which is easy for mass synthesis in manufacturing method due to its relatively simple manufacturing process, and is easy to realize ultra-thin and large-area.
Claims8
A method for manufacturing a two-dimensional nanosheet, the method comprising:
- preparing a metal oxide nanosheet precursor;
- and
- manufacturing a two-dimensional metal oxide nanosheet having an amorphous structure by heat-treating the metal oxide nanosheet precursor in a reducing atmosphere,
- wherein the two-dimensional metal oxide nanosheet includes RuO2,
- wherein the heat-treating of the metal oxide nanosheet precursor includes forming a rutile structure of the two-dimensional metal oxide nanosheet including the RuO2 at a temperature from 200° C. to 350° C.,
- wherein the metal oxide nanosheet precursor has a layered structure laminated through hydrogen ions,
- wherein the preparing of the metal oxide nanosheet precursor includes exfoliating the metal oxide nanosheet precursor having the layered structure laminated through the hydrogen ions.
A two-dimensional nanosheet, comprising:
- a metal oxide having an amorphous structure and a rutile structure,
- wherein conductivity is improved due to the amorphous structure,
- wherein the two-dimensional nanosheet has a lateral size of 100 to 10,000 nm,
- wherein the metal oxide includes RuO2.
Dependencies are inferred from the claim text.