KR101528672B1 - 산소환원전극용 촉매지지체 - Google Patents
산소환원전극용 촉매지지체 Download PDFInfo
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- KR101528672B1 KR101528672B1 KR1020130095951A KR20130095951A KR101528672B1 KR 101528672 B1 KR101528672 B1 KR 101528672B1 KR 1020130095951 A KR1020130095951 A KR 1020130095951A KR 20130095951 A KR20130095951 A KR 20130095951A KR 101528672 B1 KR101528672 B1 KR 101528672B1
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- Prior art keywords
- oxygen reduction
- catalyst
- platinum
- reduction electrode
- molybdenum nitride
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title abstract description 43
- 239000001301 oxygen Substances 0.000 title abstract description 43
- 229910052760 oxygen Inorganic materials 0.000 title abstract description 43
- 239000000463 material Substances 0.000 title 1
- 239000003054 catalyst Substances 0.000 claims abstract description 58
- GPBUGPUPKAGMDK-UHFFFAOYSA-N azanylidynemolybdenum Chemical compound [Mo]#N GPBUGPUPKAGMDK-UHFFFAOYSA-N 0.000 claims abstract description 48
- 238000000034 method Methods 0.000 claims abstract description 15
- 229910000476 molybdenum oxide Inorganic materials 0.000 claims description 26
- PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical compound [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 claims description 26
- 239000000843 powder Substances 0.000 claims description 14
- 238000006243 chemical reaction Methods 0.000 claims description 11
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000012153 distilled water Substances 0.000 claims description 7
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 6
- 229910017604 nitric acid Inorganic materials 0.000 claims description 6
- 238000005406 washing Methods 0.000 claims description 6
- 229910021529 ammonia Inorganic materials 0.000 claims description 4
- TVAATYMJWZHIQJ-UHFFFAOYSA-N molybdenum;tetrahydrate Chemical compound O.O.O.O.[Mo] TVAATYMJWZHIQJ-UHFFFAOYSA-N 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 3
- 239000012299 nitrogen atmosphere Substances 0.000 claims description 3
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 abstract description 77
- 229910052697 platinum Inorganic materials 0.000 abstract description 38
- 230000003197 catalytic effect Effects 0.000 abstract description 13
- 238000006722 reduction reaction Methods 0.000 description 37
- 239000011148 porous material Substances 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 10
- 239000000243 solution Substances 0.000 description 9
- 238000002484 cyclic voltammetry Methods 0.000 description 8
- 229910052723 transition metal Inorganic materials 0.000 description 7
- 150000003624 transition metals Chemical class 0.000 description 7
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- 238000003917 TEM image Methods 0.000 description 5
- 239000000446 fuel Substances 0.000 description 5
- 239000002808 molecular sieve Substances 0.000 description 5
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical group [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 5
- 229910021536 Zeolite Inorganic materials 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 4
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 4
- 238000009826 distribution Methods 0.000 description 4
- 150000004767 nitrides Chemical class 0.000 description 4
- 238000005121 nitriding Methods 0.000 description 4
- 239000010457 zeolite Substances 0.000 description 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 229910052750 molybdenum Inorganic materials 0.000 description 3
- 239000011733 molybdenum Substances 0.000 description 3
- 239000002127 nanobelt Substances 0.000 description 3
- 239000002086 nanomaterial Substances 0.000 description 3
- 230000002194 synthesizing effect Effects 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000002441 X-ray diffraction Methods 0.000 description 2
- 239000012378 ammonium molybdate tetrahydrate Substances 0.000 description 2
- FIXLYHHVMHXSCP-UHFFFAOYSA-H azane;dihydroxy(dioxo)molybdenum;trioxomolybdenum;tetrahydrate Chemical compound N.N.N.N.N.N.O.O.O.O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O[Mo](O)(=O)=O.O[Mo](O)(=O)=O.O[Mo](O)(=O)=O FIXLYHHVMHXSCP-UHFFFAOYSA-H 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001027 hydrothermal synthesis Methods 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- -1 platinum ions Chemical class 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 230000027756 respiratory electron transport chain Effects 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 239000000741 silica gel Substances 0.000 description 2
- 229910002027 silica gel Inorganic materials 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000010757 Reduction Activity Effects 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910017053 inorganic salt Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000004502 linear sweep voltammetry Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000013081 microcrystal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011858 nanopowder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 239000012279 sodium borohydride Substances 0.000 description 1
- 229910000033 sodium borohydride Inorganic materials 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000006276 transfer reaction Methods 0.000 description 1
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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
-
- 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
-
- 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
-
- 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)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Catalysts (AREA)
- Inert Electrodes (AREA)
Abstract
따라서 간단한 공정으로 메조포러스 구조를 갖는 산소환원전극용 촉매지지체를 제조할 수 있으며, 소량의 백금으로도 우수한 촉매활성을 갖는 촉매를 다량 생산할 수 있다.
Description
도 2는 도 1에 따라 제조된 몰리브데늄 산화물 및 몰리브데늄 질화물의 TEM 이미지,
도 3은 도 1에 따라 제조된 몰리브데늄 산화물 및 몰리브데늄 질화물의 XRD 그래프,
도 4는 도 1에 따라 제조된 몰리브데늄 질화물의 BET 그래프,
도 5는 몰리브데늄 산화물을 질화시켜 몰리브데늄 질화물을 제조하고, 백금을 담지시키는 과정을 나타낸 모식도,
도 6은 도 1에 따라 제조된 몰리브데늄 질화물을 지지체로 하는 백금촉매의 TEM 이미지,
도 7(a)는 도 1에 따라 제조된 몰리브데늄 질화물의 순환전압접류법(Cyclic voltammetry; 이하 “CV"라 함)으로 측정한 CV 곡선,
도 7(b)는 도 1에 따라 제조된 몰리브데늄 질화물을 RRDE로 측정하여 얻어진 산소환원 전자수 전달 곡선,
도 7(c)는 도 1에 따라 제조된 몰리브데늄 질화물의 일정전위주사곡선이며,
도 7(d)는 도 1에 따라 제조된 몰리브데늄 질화물의 질량 대비 산소환원 활성을 비교한 그래프이다.
Claims (5)
- 삭제
- 삭제
- 삭제
- 암모니움 몰리브데이트 테트라하이드레이트(Ammonium molybdate tetrahydrate)를 질산에 용해시켜 반응 용액을 제조하는 단계;
상기 반응 용액을 오토클레이브(Autoclave)에서 반응 시킨 후, 증류수로 세척하고 건조시켜 몰리브데늄 산화물 분말을 제조하는 단계; 및
상기 몰리브데늄 산화물 분말을 질소분위기 하에서 반응시켜 다공성 구조를 갖는 몰리브데늄 질화물을 제조하는 단계를 포함하는 산소환원전극용 촉매지지체 제조 방법. - 청구항 4에 있어서,
상기 몰리브데늄 산화물 분말을 제조하는 단계는,
상기 반응 용액을 오토클레이브를 사용하여 120 내지 180 ℃ 에서 3 내지 5시간동안 반응시키고, 3 내지 5 회 증류수로 세척하여, 수열 합성시키는 것을 특징으로 하는 산소환원전극용 촉매지지체 제조방법.
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Citations (3)
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JP2004031337A (ja) * | 2002-05-07 | 2004-01-29 | Toyo Kohan Co Ltd | 燃料電池用セパレータ、その製造方法、およびその燃料電池用セパレータを用いた燃料電池 |
JP2005063677A (ja) * | 2003-08-11 | 2005-03-10 | Nitto Denko Corp | 燃料電池 |
KR100656014B1 (ko) * | 2005-01-15 | 2006-12-08 | 현대자동차주식회사 | 희박 질소산화물 제거용 메조포러스 분자체 담지 백금계촉매의 제조방법 |
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JP2004031337A (ja) * | 2002-05-07 | 2004-01-29 | Toyo Kohan Co Ltd | 燃料電池用セパレータ、その製造方法、およびその燃料電池用セパレータを用いた燃料電池 |
JP2005063677A (ja) * | 2003-08-11 | 2005-03-10 | Nitto Denko Corp | 燃料電池 |
KR100656014B1 (ko) * | 2005-01-15 | 2006-12-08 | 현대자동차주식회사 | 희박 질소산화물 제거용 메조포러스 분자체 담지 백금계촉매의 제조방법 |
Non-Patent Citations (2)
Title |
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JES, 2011,158(10),1255-1259 * |
JES, 2011,158(10),1255-1259* |
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