KR20090034778A - 금속 나노입자 무기 복합재의 제조 방법 및 금속 나노입자 무기 복합재 - Google Patents
금속 나노입자 무기 복합재의 제조 방법 및 금속 나노입자 무기 복합재 Download PDFInfo
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Abstract
Description
Claims (15)
- 산 촉매의 작용에 의해 금속 알콕시드를 부분적으로 가수분해하는 졸-겔 법에 의해, 세공을 가지는 산화물 막을 기판 상에 형성하는, 산화물 막 형성 단계,산화물 막을 염화주석의 산성 수용액과 접촉시키는, 주석 침착 단계,세공으로부터 Sn2 + 이온을 제거하는, 과량의 Sn2 + 이온 제거 단계,산화물 막을 금속 킬레이트 수용액과 접촉시켜 세공 내에 금속 나노입자를 침착시키는, 금속 나노입자 침착 단계, 및세공으로부터 금속 이온을 제거하는, 과량의 금속 이온 제거 단계를 포함하는, 금속 나노입자 무기 복합재의 제조 방법.
- 제1항에 있어서, 주석 침착 단계에서 과량의 금속 이온 제거 단계까지의 단계들을 2회 이상 실시하는 방법.
- 제1항에 있어서, 주석 침착 단계 및 과량의 Sn2 + 이온 제거 단계를 연속적으로 반복하는 방법.
- 제2항에 있어서, 세공으로부터 Sn2 + 이온을 제거하기 위한 제2의 과량의 Sn2+ 이온 제거 단계를 포함하고, 제2의 과량의 Sn2 + 이온 제거 단계를 금속 나노입자 침착 단계 후, 주석 침착 단계 전에 실시하는 방법.
- 제1항에 있어서, 과량의 Sn2 + 이온 제거 단계가, 물 또는 수용액에 산화물 막을 침지시키는 처리인 방법.
- 제1항에 있어서, 과량의 Sn2 + 이온 제거 단계가, 물 또는 수용액이 순환하는 장치 내에서 물 또는 수용액에 산화물 막을 침지시키는 처리인 방법.
- 제4항에 있어서, 제2의 과량의 Sn2 + 이온 제거 단계가, 금속 나노입자 침착 단계 후에, 산화물 막을 용액 또는 공기 중에서 12시간 이상 유지하여 Sn2 + 이온이 Sn4+ 이온으로 변하게 하는 처리인 방법.
- 제4항에 있어서, 제2의 과량의 Sn2 + 이온 제거 단계가, 금속 나노입자 침착 단계 후에, 산화물 막을 50℃ 내지 100℃ 미만의 온도로 가열하여 Sn2 + 이온이 Sn4 + 이온으로 변하게 하는 처리인 방법.
- 제1항에 있어서, 금속 알콕시드가 유기실란이고, 산화물 막이 SiO2 막인 방법.
- 제1항에 있어서, 금속 킬레이트 수용액이, 암모니아를 함유하는 수용액 및 은 염으로부터 제조된 Ag(NH3)2 + 킬레이트 수용액인 방법.
- 제9항에 있어서, SiO2 막 형성 단계 후 SiO2 막이, IR 분광법으로 검사했을 때, OH 기에 기인하는 피크를 각각 3,400 cm-1 부근 및 950 cm-1 부근에 나타내고, (70 내지 180)/1의 SiO2/Cl 중량비가 얻어지는 농도로 염소를 함유하며; 세공의 대략적인 공경이 20 nm 이하이고, 네트워크 배열로 형성된 방법.
- SiO2, B2O3, Al2O3, TiO2, ZrO2, Na2O, CaO 및 SrO로 이루어진 군으로부터 선택된, 가시광에 대해 투명한 1종 이상의 산화물,Au, Ag, Cu, Pt, Pb, Ph, Cd, In 및 Pd로 이루어진 군으로부터 선택된 1종 이상의 금속을 포함하고, 상기 산화물 중에 분산된 금속 나노입자, 및상기 산화물 중에 분산된 산화주석 (SnO2)을 포함하고, 여기서, 산화물의 함량, 금속 나노입자의 함량 및 산화주석의 함량을 각각 a (중량%), b (중량%) 및 c (중량%)로 표현할 때, 30≤a≤70, 20≤b≤50 및 1≤c≤30의 관계를 만족시키는 금속 나노입자 무기 복합재.
- 제12항에 있어서, 산화물이 SiO2이고 금속이 은인 금속 나노입자 무기 복합재.
- 제13항에 있어서, 산화물의 함량, 금속 나노입자의 함량 및 산화주석의 함량을 각각 a (중량%), b (중량%) 및 c (중량%)로 표현할 때, 35≤a≤45, 35≤b≤50 및 15≤c≤25의 관계를 만족시키는 금속 나노입자 무기 복합재.
- 제13항에 있어서, 불소 0.1 내지 4 중량% 및 염소 0.05 내지 1.0 중량%를 함유하는 금속 나노입자 무기 복합재.
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