KR20220111344A - 수소 발생 반응용 촉매 및 이의 제조 방법 - Google Patents
수소 발생 반응용 촉매 및 이의 제조 방법 Download PDFInfo
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Abstract
Description
도 2 는 본원의 일 실시예에 따른 수소 발생 반응(HER)용 촉매의 TEM 이미지, EDS 라인 스캔 프로파일, HR-TEM 이미지, XRD 및 XPS 스펙트럼을 나타낸 그래프이다.
도 3 은 본원의 일 실시예에 따른 수소 발생 반응(HER)용 촉매의 K-edge XANES 스펙트럼, FT 스펙트럼 및 히트맵 이미지를 나타낸 그래프이다.
도 4 는 본원의 일 실시예에 따른 수소 발생 반응(HER)용 촉매의 편광 곡선, Tafel 플롯, 과전압 및 전류 밀도 내구성을 나타낸 그래프이다.
Claims (16)
- 전이금속 매트릭스 및 상기 전이금속 매트릭스 상에 형성된 귀금속 원자를 포함하고,
상기 귀금속 원자는 산소가 흡착된 것이며,
상기 산소는 상기 전이금속 매트릭스로부터 유래한 것인,
수소 발생 반응(HER)용 촉매.
- 제 1 항에 있어서,
상기 전이금속 매트릭스는 전이금속 산화물이 환원되어 생성되고, 상기 환원과정에서 산소가 상기 귀금속 원자 상에 흡착된 것인, 수소 발생 반응(HER)용 촉매.
- 제 1 항에 있어서,
상기 귀금속 원자의 이종 접합 계면(hetero-interface) 상에서 수소 유출(spillover)이 발생하는 것인, 수소 발생 반응(HER)용 촉매.
- 제 1 항에 있어서,
상기 전이금속 매트릭스는 격자 구조를 가지고, 귀금속 원자가 상기 격자 구조에 도입되는 것인, 수소 발생 반응(HER)용 촉매.
- 제 1 항에 있어서,
상기 전이금속 매트릭스는 Cu2O, CuO, SnO2, SnO, Fe2O, Fe2O3, Fe3O4, FeO(OH), Al2O3, NiO, TiO, TiO2, WO3, PbO, PbO2, Pb3O4, ZnO, Sb2O3, Sb2O4, Sb2O5, Bi2O3, V2O3, V2O4, V2O5, MnO, Mn3O4, Mn2O3, MnO2, CrO2, Cr2O3, CrO3, CoO, Co3O, ZrO2, Ga2O3, In2O3 및 이들의 조합들로 이루어진 군으로부터 선택되는 금속 산화물을 포함하는 것인, 수소 발생 반응(HER)용 촉매.
- 제 1 항에 있어서,
상기 전이금속 매트릭스는 나노와이어, 나노로드, 나노플레이트, 나노튜브, 나노선, 및 이들의 조합들로 이루어진 군으로부터 선택되는 나노구조체를 포함하는 것인, 수소 발생 반응(HER)용 촉매.
- 제 1 항에 있어서,
상기 귀금속은 루테늄(Ru), 금(Au), 은(Ag), 백금(Pt), 팔라듐(Pd), 이리듐(Ir), 로듐(Rh), 오스뮴(Os), 레늄(Re), 텅스텐(W), 몰리브데늄(Mo) 및 이들의 조합들로 이루어진 군으로부터 선택되는 것을 포함하는 것인, 수소 발생 반응(HER)용 촉매.
- 전이금속 매트릭스를 귀금속 염화물 용액에 침지시키는 단계;
상기 귀금속 염화물 용액의 귀금속 양이온을 상기 전이금속 매트릭스의 금속 양이온의 일부와 교환시켜 중간체를 제조하는 단계;
상기 중간체를 환원제를 포함하는 용액에 침지시키는 단계; 및
상기 환원제에 의해 상기 전이금속 매트릭스의 산소가 귀금속 원자로 이동하여 산소가 흡착된 귀금속 원자가 상기 전이금속 매트릭스 상에 형성되는 단계;
를 포함하는
수소 발생 반응(HER)용 촉매의 제조 방법.
- 제 8 항에 있어서,
상기 환원제는 NaBH4, LiAlH4, 히드라진(hydrazine), KBH4, 요오드화수소산(hydriodic acid) 및 이들의 조합들로 이루어진 군으로부터 선택되는 것을 포함하는 것인, 수소 발생 반응(HER)용 촉매의 제조 방법.
- 제 8 항에 있어서,
상기 전이금속 매트릭스는 전이금속 산화물이 환원되어 생성되고, 상기 환원과정에서 산소가 상기 귀금속 원자 상에 흡착된 것인, 수소 발생 반응(HER)용 촉매의 제조 방법.
- 제 8 항에 있어서,
상기 귀금속 원자의 이종 접합 계면(hetero-interface) 상에서 수소 유출(spillover)이 발생하는 것인, 수소 발생 반응(HER)용 촉매의 제조 방법.
- 제 8 항에 있어서,
상기 전이금속 매트릭스는 격자 구조를 가지고, 상기 귀금속 원자가 상기 격자 구조에 도입되는 것인, 수소 발생 반응(HER)용 촉매의 제조 방법.
- 제 8 항에 있어서,
상기 전이금속 매트릭스는 Cu2O, CuO, SnO2, SnO, Fe2O, Fe2O3, Fe3O4, FeO(OH), Al2O3, NiO, TiO, TiO2, WO3, PbO, PbO2, Pb3O4, ZnO, Sb2O3, Sb2O4, Sb2O5, Bi2O3, V2O3, V2O4, V2O5, MnO, Mn3O4, Mn2O3, MnO2, CrO2, Cr2O3, CrO3, CoO, Co3O, ZrO2, Ga2O3, In2O3 및 이들의 조합들로 이루어진 군으로부터 선택되는 금속 산화물을 포함하는 것인, 수소 발생 반응(HER)용 촉매의 제조 방법.
- 제 8 항에 있어서,
상기 전이금속 매트릭스는 나노와이어, 나노로드, 나노플레이트, 나노튜브, 나노선, 및 이들의 조합들로 이루어진 군으로부터 선택되는 나노구조체를 포함하는 것인, 수소 발생 반응(HER)용 촉매의 제조 방법.
- 제 8 항에 있어서,
상기 귀금속은 루테늄(Ru), 금(Au), 은(Ag), 백금(Pt), 팔라듐(Pd), 이리듐(Ir), 로듐(Rh), 오스뮴(Os), 레늄(Re), 텅스텐(W), 몰리브데늄(Mo) 및 이들의 조합들로 이루어진 군으로부터 선택되는 것을 포함하는 것인, 수소 발생 반응(HER)용 촉매의 제조 방법.
- 제 1 항 내지 제 7 항 중 어느 한 항에 따른 수소 발생 반응(HER)용 촉매를 포함하는, 물 분해 시스템.
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| CN115652335B (zh) * | 2022-11-01 | 2025-05-06 | 浙江工业大学 | 一种立方体构型三氧化二锰负载二氧化铅的电催化剂及其制备方法和应用 |
| US12322546B2 (en) | 2023-09-27 | 2025-06-03 | Imam Abdulrahman Bin Faisal University | Zinc chromium vanadate spinel oxide (ZCVO) nanostructure-based electrocatalyst for energy generation and storage |
| KR20250144028A (ko) | 2024-03-26 | 2025-10-10 | 고려대학교 세종산학협력단 | 우수한 수전해 수소발생반응 촉매 활성을 갖는 레늄-바나듐 셀레나이드 합금 나노시트 및 이의 제조방법 |
| KR20250144026A (ko) | 2024-03-26 | 2025-10-10 | 고려대학교 세종산학협력단 | 우수한 수전해 수소발생반응 촉매 활성을 갖는 텅스텐 디셀레나이드 합금 나노시트 및 이의 제조방법 |
| CN120099583B (zh) * | 2025-03-07 | 2026-04-10 | 浙江大学 | 一种高性能过渡金属-贵金属氧化物团簇异质结构析氧反应电催化剂及制备方法和应用 |
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