KR102011800B1 - 자성 그래핀 나노 분말 복합체 제조방법 - Google Patents
자성 그래핀 나노 분말 복합체 제조방법 Download PDFInfo
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- KR102011800B1 KR102011800B1 KR1020180045224A KR20180045224A KR102011800B1 KR 102011800 B1 KR102011800 B1 KR 102011800B1 KR 1020180045224 A KR1020180045224 A KR 1020180045224A KR 20180045224 A KR20180045224 A KR 20180045224A KR 102011800 B1 KR102011800 B1 KR 102011800B1
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Abstract
본 발명은 「(a) 나노 자성체 산화물 분말을 준비하는 단계; (b) 그래핀 산화물이 분산된 분산액을 준비하는 단계; (c) 상기 나노 자성체 산화물 분말을 상기 분산액에 혼합, 분산시킨 혼합물을 제조하는 단계; (d) 상기 혼합물을 화학반응이 일어나지 않는 방식으로 건조하여 상기 나노 자성체 산화물 분말에 그래핀 산화물이 코팅된 복합체 분말을 제조하는 단계; (e) 상기 복합체 분말을 환원조건에서 열처리하여 상기 나노 자성체 산화물 분말 및 그래핀 산화물의 산소를 환원시킨 환원 복합체를 제조하는 단계; 및 (f) 상기 환원 복합체를 천장면에 철판이 부착된 챔버에 반입시키고, 상기 챔버 내에서 상기 환원 복합체가 에어로졸화한 상태에서, 상기 챔버 내에 자기장을 형성시켜, 상기 철판에 자착되는 물질을 자성 그래핀 나노 분말 복합체로 분류하는 단계; 를 포함하는 자성 그래핀 나노 분말 복합체 제조방법」을 제공한다.
Description
Claims (4)
- (a) 평균 직경이 5㎚~100㎚인 나노 자성체 산화물 분말을 준비하는 단계;
(b) 그래핀 산화물이 분산된 분산액을 준비하는 단계;
(c) 상기 나노 자성체 산화물 분말을 상기 분산액에 혼합, 분산시킨 혼합물을 제조하는 단계;
(d) 상기 혼합물을 화학반응이 일어나지 않는 방식으로 건조하여 상기 나노 자성체 산화물 분말에 그래핀 산화물이 코팅된 복합체 분말을 제조하는 단계;
(e) 상기 복합체 분말을 환원조건에서 200℃~1,500℃의 온도조건으로 열처리하여 상기 나노 자성체 산화물 분말 및 그래핀 산화물의 산소를 환원시킨 환원 복합체를 제조하는 단계; 및
(f) 상기 환원 복합체를 천장면에 철판이 부착된 챔버에 반입시키고, 상기 챔버 내에서 상기 환원 복합체가 에어로졸화한 상태에서, 상기 챔버 내에 자기장을 형성시켜, 상기 철판에 자착되는 물질을 자성 그래핀 나노 분말 복합체로 분류하는 단계; 를 포함하며,
상기 철판에 자착되지 않은 물질에 대하여 상기 (f)단계를 반복 실시하여 고순도 그래핀을 부산물로 얻으며 수득율을 높이는 자성 그래핀 나노 분말 복합체 제조방법.
- 삭제
- 제1항에서,
상기 분산액 내 그래핀 산화물의 양은 상기 나노 자성체 산화물 분말 대비 0.01~10wt%인 것을 특징으로 하는 자성 그래핀 나노 분말 복합체 제조방법.
- 삭제
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| KR1020180045224A KR102011800B1 (ko) | 2018-04-18 | 2018-04-18 | 자성 그래핀 나노 분말 복합체 제조방법 |
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| KR1020180045224A KR102011800B1 (ko) | 2018-04-18 | 2018-04-18 | 자성 그래핀 나노 분말 복합체 제조방법 |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20130040541A (ko) | 2011-10-14 | 2013-04-24 | 한국기초과학지원연구원 | 리튬 이차전지 음극 활물질용 그라핀-금속산화물 복합체 및 그 제조방법 |
| KR101465392B1 (ko) | 2014-03-05 | 2014-11-25 | 성균관대학교산학협력단 | 그래핀 나노시트를 이용한 실리콘/전이금속 나노 혼성체의 제조 방법 및 이에 의해 제조된 그래핀 나노시트를 이용한 실리콘/전이금속 나노 혼성체 |
| CN105670558A (zh) * | 2015-12-29 | 2016-06-15 | 陕西科技大学 | 一种RGO/CoFe2O4/Y3Fe5O12复合粉体及制备方法 |
| KR101767393B1 (ko) * | 2017-02-09 | 2017-08-11 | 한국지질자원연구원 | 실리콘-탄소-그래핀 복합체 제조방법, 이에 따라 제조되는 복합체 및 이를 적용한 이차전지 |
| KR20170107736A (ko) | 2016-03-16 | 2017-09-26 | 주식회사 크레진 | 그래핀 산화물을 이용한 그래핀 복합체 및 나노금속 제조방법 |
| KR20170107734A (ko) | 2016-03-16 | 2017-09-26 | 주식회사 크레진 | 그래핀을 이용한 그래핀 복합체 및 나노금속 제조방법 |
| KR20180000383A (ko) * | 2016-06-22 | 2018-01-03 | 주식회사 나노스페이스 | 산화 그래핀을 이용한 자성다공체 및 그 제조방법 |
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2018
- 2018-04-18 KR KR1020180045224A patent/KR102011800B1/ko active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20130040541A (ko) | 2011-10-14 | 2013-04-24 | 한국기초과학지원연구원 | 리튬 이차전지 음극 활물질용 그라핀-금속산화물 복합체 및 그 제조방법 |
| KR101465392B1 (ko) | 2014-03-05 | 2014-11-25 | 성균관대학교산학협력단 | 그래핀 나노시트를 이용한 실리콘/전이금속 나노 혼성체의 제조 방법 및 이에 의해 제조된 그래핀 나노시트를 이용한 실리콘/전이금속 나노 혼성체 |
| CN105670558A (zh) * | 2015-12-29 | 2016-06-15 | 陕西科技大学 | 一种RGO/CoFe2O4/Y3Fe5O12复合粉体及制备方法 |
| KR20170107736A (ko) | 2016-03-16 | 2017-09-26 | 주식회사 크레진 | 그래핀 산화물을 이용한 그래핀 복합체 및 나노금속 제조방법 |
| KR20170107734A (ko) | 2016-03-16 | 2017-09-26 | 주식회사 크레진 | 그래핀을 이용한 그래핀 복합체 및 나노금속 제조방법 |
| KR20180000383A (ko) * | 2016-06-22 | 2018-01-03 | 주식회사 나노스페이스 | 산화 그래핀을 이용한 자성다공체 및 그 제조방법 |
| KR101767393B1 (ko) * | 2017-02-09 | 2017-08-11 | 한국지질자원연구원 | 실리콘-탄소-그래핀 복합체 제조방법, 이에 따라 제조되는 복합체 및 이를 적용한 이차전지 |
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