KR20090120058A - 카르보닐계 용매를 이용한 나노 철의 제조방법 및 이로부터제조된 나노 철 - Google Patents
카르보닐계 용매를 이용한 나노 철의 제조방법 및 이로부터제조된 나노 철 Download PDFInfo
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- KR20090120058A KR20090120058A KR1020080045916A KR20080045916A KR20090120058A KR 20090120058 A KR20090120058 A KR 20090120058A KR 1020080045916 A KR1020080045916 A KR 1020080045916A KR 20080045916 A KR20080045916 A KR 20080045916A KR 20090120058 A KR20090120058 A KR 20090120058A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/16—Making metallic powder or suspensions thereof using chemical processes
- B22F9/18—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
- B22F9/24—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/05—Metallic powder characterised by the size or surface area of the particles
- B22F1/054—Nanosized particles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2301/00—Metallic composition of the powder or its coating
- B22F2301/35—Iron
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- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
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Abstract
Description
Claims (14)
- 철 염을 물 중에서 용해시켜 철 이온 수용액을 제조하는 단계;상기 철 이온 수용액에 카르보닐기 함유 유기 용매를 첨가하는 단계; 및상기 유기 용매 첨가 철 이온 수용액에 환원제를 첨가하는 단계를 포함하는 나노 철의 제조방법.
- 제1항에 있어서,상기 카르보닐기 함유 유기 용매는 케톤계 화합물, 알데이트계 화합물 및 이들의 혼합물로 이루어진 군에서 선택되는 제조방법.
- 제1항에 있어서,상기 카르보닐기 함유 유기 용매는 아세톤인 제조방법
- 제1항에 있어서,상기 카르보닐기 함유 유기 용매는 물 100중량부에 대하여 1 내지 100중량부로 포함되는 제조방법.
- 제1항에 있어서,상기 철 이온 혼합액은 철 이온을 0.01 내지 1M의 농도로 포함하는 제조방 법.
- 제1항에 있어서,상기 환원제는 붕화수소계 화합물인 제조방법.
- 제1항에 있어서,상기 환원제는 수소화붕소나트륨(NaBH4), 수소화붕소칼륨(KBH4), 수소화붕소리튬(LiBH4), 및 이들의 혼합물로 이루어진 군에서 선택되는 제조방법.
- 제1항에 있어서,상기 환원제는 0.01 내지 1.5M의 농도로 물 중에 용해된 수용액 상태로 첨가되는 제조방법.
- 제1항에 있어서,상기 환원제는 철 이온 수용액 중의 철 이온 농도의 1 내지 3배의 양으로 사용되는 제조방법.
- 제1항에 있어서,상기 환원제는 0.2 mL/s이하의 속도로 첨가되는 제조방법.
- 제1항에 있어서,상기 제조방법은 환원제의 투과후 상온, 상압하에서 산화공정을 실시하여 결정상의 철 입자를 성장시키는 공정을 더 포함하는 제조방법.
- 제1항 내지 제11항 중 어느 한 항에 따른 제조방법에 따라 제조된 나노 철.
- 제12항에 있어서,상기 나노 철은 나노 영가 철, 산화철입자, 무결정질의 유기금속 등을 포함하는 나노 크기의 혼합물.
- 제12항에 있어서,상기 나노 철은 30 내지 80m2/g의 비표면적을 갖는 나노 철.
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KR1020080045916A KR100986738B1 (ko) | 2008-05-19 | 2008-05-19 | 카르보닐계 용매를 이용한 나노 철의 제조방법 및 이로부터제조된 나노 철 |
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KR1020080045916A KR100986738B1 (ko) | 2008-05-19 | 2008-05-19 | 카르보닐계 용매를 이용한 나노 철의 제조방법 및 이로부터제조된 나노 철 |
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KR20090120058A true KR20090120058A (ko) | 2009-11-24 |
KR100986738B1 KR100986738B1 (ko) | 2010-10-08 |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018236060A1 (ko) * | 2017-06-20 | 2018-12-27 | 주식회사 엘지화학 | 수산화철(FeOOH)의 제조방법 및 수산화철을 포함하는 리튬-황 전지용 양극 |
WO2019093660A3 (ko) * | 2017-11-07 | 2019-06-27 | 주식회사 엘지화학 | 마그헤마이트의 제조방법 |
JP2019531243A (ja) * | 2017-06-20 | 2019-10-31 | エルジー・ケム・リミテッド | 水酸化鉄(FeOOH)の製造方法及び水酸化鉄を含むリチウム−硫黄電池用正極 |
KR20190123925A (ko) * | 2018-04-25 | 2019-11-04 | 건국대학교 산학협력단 | 석탄 비산재에 포함된 철 성분의 선택적 추출 및 추출된 철을 이용한 나노 영가 철 제조방법 |
US11349113B2 (en) | 2018-04-10 | 2022-05-31 | Lg Energy Solution, Ltd. | Method of producing iron phosphide, positive electrode for lithium secondary battery comprising iron phosphide, and lithium secondary battery comprising same |
Family Cites Families (2)
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JP2006342399A (ja) | 2005-06-09 | 2006-12-21 | Mitsubishi Chemicals Corp | 鉄超微粒子及びその製造方法 |
US20070022839A1 (en) | 2005-07-29 | 2007-02-01 | Changzai Chi | Syntheses and applications of nano-sized iron particles |
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- 2008-05-19 KR KR1020080045916A patent/KR100986738B1/ko active IP Right Grant
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2018236060A1 (ko) * | 2017-06-20 | 2018-12-27 | 주식회사 엘지화학 | 수산화철(FeOOH)의 제조방법 및 수산화철을 포함하는 리튬-황 전지용 양극 |
JP2019531243A (ja) * | 2017-06-20 | 2019-10-31 | エルジー・ケム・リミテッド | 水酸化鉄(FeOOH)の製造方法及び水酸化鉄を含むリチウム−硫黄電池用正極 |
US11038174B2 (en) | 2017-06-20 | 2021-06-15 | Lg Chem, Ltd. | Method for preparing iron oxide-hydroxide (FeOOH) and positive electrode for lithium-sulfur battery comprising iron oxide-hydroxide |
WO2019093660A3 (ko) * | 2017-11-07 | 2019-06-27 | 주식회사 엘지화학 | 마그헤마이트의 제조방법 |
US11349113B2 (en) | 2018-04-10 | 2022-05-31 | Lg Energy Solution, Ltd. | Method of producing iron phosphide, positive electrode for lithium secondary battery comprising iron phosphide, and lithium secondary battery comprising same |
KR20190123925A (ko) * | 2018-04-25 | 2019-11-04 | 건국대학교 산학협력단 | 석탄 비산재에 포함된 철 성분의 선택적 추출 및 추출된 철을 이용한 나노 영가 철 제조방법 |
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