KR20100082609A - 금속 화합물 미세 분말의 제조방법 - Google Patents
금속 화합물 미세 분말의 제조방법 Download PDFInfo
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Abstract
Description
Claims (15)
- (1) 1종 이상의 금속전구체를 유기용매에 분산시킨 용액에 초임계 상태의 이산화탄소 유체를 확산시키면서 교반하여 균일한 혼합유체를 얻는 단계;(2) 상기 혼합유체를 30 내지 300 ℃의 온도 및 0.5 내지 30 MPa의 압력 조건의 아임계 상태에서 1 분 내지 100 시간 동안 용매열합성 반응시키는 단계; 및(3) 수득한 반응물을 냉각 후 초임계 건조시켜 생성된 금속 화합물 분말을 분리하는 단계를 포함하는, 금속 화합물 미세 분말의 제조방법.
- 제1항에 있어서,상기 유기용매는 1종 이상의 C1-C10 알코올을 포함하는 것을 특징으로 하는 방법.
- 제1항에 있어서,상기 금속전구체로서 2종 이상의 금속전구체를 사용하여, 최종적으로 복합체 또는 치환고용체의 금속 화합물 미세 분말을 얻는 것을 특징으로 하는 방법.
- 제1항에 있어서,상기 초임계 상태의 이산화탄소 유체는, 이산화탄소를 30 내지 100 ℃의 온도 및 0.5 내지 30 MPa의 압력 조건으로 유지하여 제조되는 것을 특징으로 하는 방법.
- 제1항에 있어서,상기 생성된 금속 화합물 분말은 구(sphere), 파이버(fiber), 시트(sheet), 와이어(wire), 다발(bundle), 입방정(cubic) 또는 피라미드(pyramidal)의 형상의 미세 분말인 것을 특징으로 하는 방법.
- 제1항에 있어서,상기 (3) 단계에서 생성된 금속 화합물 분말은 추가로 열처리되는 것을 특징으로 하는 방법.
- 제1항에 있어서,상기 (1) 단계는, 1종 이상의 금속전구체를 유기용매에 분산시키고, 산 또는 알칼리를 첨가한 뒤, 초임계 상태의 이산화탄소 유체와 혼합시키면서 30 내지 100 ℃의 온도와 0.5 내지 15 MPa의 압력 조건에서 1 분 내지 10 시간 동안 반응시켜, 혼합유체를 얻는 단계인 것을 특징으로 하는 방법.
- 제1항에 있어서,상기 금속전구체는 금속의 불화염, 염화염, 무기산염 또는 유기산염이거나, 금속수화물 또는 금속착화물인 것을 특징으로 하는 방법.
- 제1항에 있어서,상기 금속전구체는, Ru, Rh, Cu, Ag, Au, Pd, Pt, Sb, Sc, Sr, V, Cu, Y, Ce, Mo, W, Fe, Zr, Co, Ni, Zn, Cd, Mn, Ca, Ba, Cs, Cr, Mg, Ti, Al, In, Sn, Se, Fe, Cd, Te, Ga, Gd, Ge, Dy, Pr, Sm, Ho, Lu, Tb, Eu, Nd, La, Ta, Hf, Er 및 Yb로 이루어진 군으로부터 선택되는 하나 이상의 성분을 포함하는 것을 특징으로 하는 방법.
- 제1항에 있어서,상기 (1) 단계에서, 1종 이상의 금속전구체는 유기용매 중에 0.01 내지 5 mol/L로 분산되는 것을 특징으로 하는 방법.
- 제1항에 있어서,상기 유기용매는 메탄올 또는 에탄올인 것을 특징으로 하는 방법.
- 제11항에 있어서,상기 유기용매는, 상기 금속전구체 1 몰 대비 0.01 내지 10 몰의 2 또는 3차 알코올을 공용매로서 더 포함하는 것을 특징으로 하는 방법.
- 제1항에 있어서,상기 금속전구체 1 몰 대비 0.01 내지 10 몰의 농도로, 알칼리 용액, 산성 용액, 환원제, 산화제, 방향족 탄화수소류의 유기용매, 또는 증류수를 상기 용매열합성 반응 전 또는 반응 중에 추가로 첨가하는 것을 특징으로 하는 방법.
- 제1항에 있어서,상기 용매열합성 반응 전 또는 반응 중에 암모니아, 질소, 메탄, 헬륨 또는 아르곤 가스를 추가로 첨가하는 것을 특징으로 하는 방법.
- 제1항에 있어서,상기 금속 화합물 미세 분말은 연료 또는 연료전지의 촉매재료, 탈황화 소재 또는 연료전지 전극소재의 분야에 사용되기 위하여, 과립, 볼, 디스크, 실린더, 하니컴, 시트, 또는 복합필름 형태로 더 가공되거나, 세라믹스, 금속, 고분자의 필름, 기판 또는 지지체 위에 코팅되는 것을 특징으로 하는 방법.
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KR1020090001980A KR101100297B1 (ko) | 2009-01-09 | 2009-01-09 | 금속 화합물 미세 분말의 제조방법 |
US12/578,191 US9145306B2 (en) | 2009-01-09 | 2009-10-13 | Method for preparing metal compound nanoparticles |
EP09172956.6A EP2206681B1 (en) | 2009-01-09 | 2009-10-14 | Method for preparing metal compound nanoparticles |
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Cited By (5)
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CN102581271A (zh) * | 2012-03-30 | 2012-07-18 | 吉林大学 | 一种粉末冶金材料混料方法 |
KR101257875B1 (ko) * | 2010-12-09 | 2013-04-23 | 한국과학기술연구원 | 알루미나 복합 분말과 이를 포함하는 다결정 알루미나 소결체 및 그 제조방법 |
WO2015183034A1 (ko) * | 2014-05-30 | 2015-12-03 | 한국화학연구원 | 금속 나노입자 및 이의 제조방법 |
CN111438373A (zh) * | 2020-05-27 | 2020-07-24 | 山西大同大学 | 一种铜银核壳结构双金属球状纳米粒子的制备方法 |
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US8317894B2 (en) * | 2009-04-15 | 2012-11-27 | Korea Institute Of Science And Technology | Method of producing metal nanoparticles continuously and metal nanoparticles produced thereby |
US9180437B2 (en) | 2012-05-10 | 2015-11-10 | Korea Institute Of Science And Technology | Method of preparing magnesium oxide structure with meso-macro pores |
KR101466125B1 (ko) | 2012-05-10 | 2014-11-27 | 한국과학기술연구원 | 메조-마크로 기공을 갖는 산화마그네슘 구조체의 제조방법 |
KR101369175B1 (ko) * | 2012-05-22 | 2014-03-04 | 한국세라믹기술원 | 용매열 합성법에 의하여 제조되는 나노입자 크기의 메탈 도핑 니켈옥사이드 분말 및 그 제조방법 |
CN103381485B (zh) * | 2012-12-04 | 2016-08-31 | 中国海洋大学 | 一种制备3-巯基丙酸包裹银纳米颗粒的方法 |
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KR101257875B1 (ko) * | 2010-12-09 | 2013-04-23 | 한국과학기술연구원 | 알루미나 복합 분말과 이를 포함하는 다결정 알루미나 소결체 및 그 제조방법 |
CN102581271A (zh) * | 2012-03-30 | 2012-07-18 | 吉林大学 | 一种粉末冶金材料混料方法 |
WO2015183034A1 (ko) * | 2014-05-30 | 2015-12-03 | 한국화학연구원 | 금속 나노입자 및 이의 제조방법 |
US10363602B2 (en) | 2014-05-30 | 2019-07-30 | Korea Research Institute Of Chemical Technology | Metal nanoparticles, and preparation method therefor |
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CN111438373B (zh) * | 2020-05-27 | 2022-11-22 | 山西大同大学 | 一种铜银核壳结构双金属球状纳米粒子的制备方法 |
KR102473519B1 (ko) * | 2021-12-29 | 2022-12-02 | 연세대학교 산학협력단 | 용매열 합성법을 이용한 텅스텐 산화물의 제조방법 |
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EP2206681A3 (en) | 2012-10-24 |
EP2206681A2 (en) | 2010-07-14 |
US9145306B2 (en) | 2015-09-29 |
EP2206681B1 (en) | 2017-01-11 |
US20100178227A1 (en) | 2010-07-15 |
KR101100297B1 (ko) | 2011-12-28 |
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