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화염분무 열분해법을 이용한 이산화세륨 나노분말의 제조방법 및 그 제조방법에 의하여 제조된 이산화세륨 나노분말 (2010년4차우수국제특허경비지원)
| 대표분류 | 화학 | 구분 | 소액무상특허 |
|---|---|---|---|
| 기술테마 | 화학 | ||
| 연구기관 | 한국지질자원연구원 | 연구자 | 장한권외 4인 |
| 기술내용 | 이전대상 특허번호: 8187562(미국) 이전유형: 통상실시권 기술료: 중소기업 기준 : 기술지도 미포함 조건 / 기술료 300~500만원 비고: 부가세 별도 Disclosed is a method for producing a cerium dioxide nanopowder by flame spray pyrolysis. The method comprises dissolving a cerium compound in an organic solvent to prepare a precursor solution, atomizing the precursor solution into microdroplets using an ultrasonic atomizer, transferring the microdroplets together with an argon gas as a carrier gas to a central portion of a high-temperature diffusion flame burner, subjecting the microdroplets to pyrolysis and oxidation in the central portion of the diffusion flame burner to produce a cerium dioxide nanopowder, and collecting the cerium dioxide nanopowder using a collector. According to the method, a cerium dioxide nanopowder can be continuously produced on a large scale by flame spray pyrolysis. In addition, the particle size and uniformity of the cerium dioxide nanopowder can be controlled by appropriately selecting the kind of the solvent and the concentration of the raw material. Furthermore, flame spray pyrolysis allows the cerium dioxide to have a fluorite crystal structure. |
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