KR910017692A - 개량된 촉매 물질 - Google Patents

개량된 촉매 물질 Download PDF

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Publication number
KR910017692A
KR910017692A KR1019910005141A KR910005141A KR910017692A KR 910017692 A KR910017692 A KR 910017692A KR 1019910005141 A KR1019910005141 A KR 1019910005141A KR 910005141 A KR910005141 A KR 910005141A KR 910017692 A KR910017692 A KR 910017692A
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South Korea
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material according
platinum
alloy
electrocatalyst
range
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KR1019910005141A
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English (en)
Inventor
스투아르트 부캐넌 제프리
알란 하드스 그레이엄
케크 린드시
Original Assignee
아이 시 위샤르트
존슨 맛쎄이 퍼블릭 리미티드 캄파니
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Application filed by 아이 시 위샤르트, 존슨 맛쎄이 퍼블릭 리미티드 캄파니 filed Critical 아이 시 위샤르트
Publication of KR910017692A publication Critical patent/KR910017692A/ko

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/90—Selection of catalytic material
    • H01M4/92—Metals of platinum group
    • H01M4/925—Metals of platinum group supported on carriers, e.g. powder carriers
    • H01M4/926—Metals of platinum group supported on carriers, e.g. powder carriers on carbon or graphite
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/90—Selection of catalytic material
    • H01M4/92—Metals of platinum group
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
    • B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
    • B01J23/42—Platinum
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
    • B01J23/89—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with noble metals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M2004/8678—Inert electrodes with catalytic activity, e.g. for fuel cells characterised by the polarity
    • H01M2004/8689—Positive electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2300/00—Electrolytes
    • H01M2300/0002—Aqueous electrolytes
    • H01M2300/0005—Acid electrolytes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2300/00—Electrolytes
    • H01M2300/0002—Aqueous electrolytes
    • H01M2300/0005—Acid electrolytes
    • H01M2300/0008—Phosphoric acid-based
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Catalysts (AREA)
  • Inert Electrodes (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

내용 없음

Description

개량된 촉매 물질
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음

Claims (17)

  1. 도전성 탄소 지지체위에 지지되어 있는 백금의 합금으로 구성되어 있으며 백금함량은 20 내지 60중량%의 범위이고 합금의 ECA는 35㎡/g Pt이상인 것을 특징으로 하는 전기촉매 물질.
  2. 제 1항에 있어서, 합금원소는 IVB, VIB, VIIB, VIII, IB 및 IIIA족들로 부터 선택된 하나 또는 둘이상의 원소인 것을 특징으로 하는 물질.
  3. 제 2항에 있어서, 합금원소가 Ti, Cr, Mn, Fe, Co, Ni, Cu, Ga, Zr 및 Hf중의 하나 또는 둘이상의 원소인 것을 특징으로 하는 물질.
  4. 제 3항에 있어서, 합금원소가 Cr, Mn, Co 및 Ni중의 하나 또는 둘이상의 원소인 것을 특징으로 하는 물질.
  5. 제 1항 내지 4항중의 어느 한항에 있어서, 촉매의 BET 표면적이 1,000㎡/g이하인 것을 특징으로 하는 물질.
  6. 제 5항에 있어서, 촉매의 BET 표면적이 300㎡/g이하인 것을 특징으로 하는 물질.
  7. 제 6항에 있어서, 촉매의 BET 표면적이 120㎡/g이하인 것을 특징으로 하는 물질.
  8. 제 1항 내지 7항중의 어느 한항에 있어서, Pt대 합금원소(들)의 원자비는 80:20 내지 20:80의 범위인 것을 특징으로 하는 물질.
  9. 제 8항에 있어서, Pt대 합금원소(들)의 원자비는 65:35 내지 35:65의 범위인 것을 특징으로 하는 물질.
  10. 제 9항에 있어서, Pt대 합금원소(들)의 원자비는 50:50 인 것을 특징으로 하는 물질.
  11. 제 1항 내지 9항중의 어느 한항에 있어서, 백금금속의 함량은 20 내지 45중량%의 범위인 것을 특징으로 하는 물질.
  12. 제 1항 내지 10항중의 어느 한항에 있어서, 합금의 ECA는 40㎡/g Pt이상인 것을 특징으로 하는 물질.
  13. 기본용액으로부터 백금 및 하나 또는 그 이상의 합금원소의 화합물을 도전성 탄소 전기촉매 지지체위에 퇴적시켜 총백금퇴적량이 20 내지 60중량%가 되게하고, 화합물을 갖고 있는 지지체를 환원 및 열처리하여 ECA가 백금 g당 35㎡이상인 백금 및 적어도 하나의 다른 원소의 합금을 얻는 것으로 되어 있는 것을 특징으로 하는 제 1항 내지 12항중의 어느 한항에 의한 전기촉매물질의 제조방법.
  14. 제 13항에 있어서, 화합물을 물에 용해시켜 수성의 염기성 탄소 슬러리에 첨가하는 것을 특징으로 하는 방법.
  15. 제 1항 내지 12항중의 어느 한항에 의한 전기촉매물질로 되어 있는 것을 특징으로 하는 연료.
  16. 제 15항에 의한 촉매화 전극을 포함하고 있는 것을 특징으로 하는 연료.
  17. 제 16항에 있어서, 상기 촉매화 전극이 캐소드이고 전해질은 인산인 것을 특징으로 하는 연료전지.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019910005141A 1990-03-30 1991-03-30 개량된 촉매 물질 KR910017692A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US501,947 1990-03-30
US07/501,947 US5068161A (en) 1990-03-30 1990-03-30 Catalyst material

Publications (1)

Publication Number Publication Date
KR910017692A true KR910017692A (ko) 1991-11-05

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ID=23995679

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Application Number Title Priority Date Filing Date
KR1019910005141A KR910017692A (ko) 1990-03-30 1991-03-30 개량된 촉매 물질

Country Status (9)

Country Link
US (1) US5068161A (ko)
EP (1) EP0450849B1 (ko)
JP (1) JPH0763627B2 (ko)
KR (1) KR910017692A (ko)
AT (1) ATE189339T1 (ko)
CA (1) CA2039464C (ko)
DE (1) DE69131934T2 (ko)
DK (1) DK0450849T3 (ko)
ES (1) ES2142306T3 (ko)

Cited By (1)

* Cited by examiner, † Cited by third party
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KR100495127B1 (ko) * 2002-07-11 2005-06-14 한국과학기술원 연료전지의 전극용 촉매

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US5068161A (en) 1991-11-26
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