KR101142235B1 - Dmfc용 고분자 나노복합막, 이를 이용한 막-전극 어셈블리 및 메탄올 연료전지 - Google Patents
Dmfc용 고분자 나노복합막, 이를 이용한 막-전극 어셈블리 및 메탄올 연료전지 Download PDFInfo
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- KR101142235B1 KR101142235B1 KR1020100008015A KR20100008015A KR101142235B1 KR 101142235 B1 KR101142235 B1 KR 101142235B1 KR 1020100008015 A KR1020100008015 A KR 1020100008015A KR 20100008015 A KR20100008015 A KR 20100008015A KR 101142235 B1 KR101142235 B1 KR 101142235B1
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- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 title claims abstract description 171
- 239000012528 membrane Substances 0.000 title claims abstract description 137
- 239000000446 fuel Substances 0.000 title claims abstract description 52
- 229920000557 Nafion® Polymers 0.000 claims abstract description 77
- 239000002114 nanocomposite Substances 0.000 claims abstract description 62
- 229920000642 polymer Polymers 0.000 claims abstract description 57
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 50
- 229920005597 polymer membrane Polymers 0.000 claims abstract description 32
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 24
- 239000002105 nanoparticle Substances 0.000 claims abstract description 23
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 21
- 239000003054 catalyst Substances 0.000 claims description 29
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 25
- 239000000243 solution Substances 0.000 claims description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 15
- 239000007864 aqueous solution Substances 0.000 claims description 13
- 238000009792 diffusion process Methods 0.000 claims description 13
- 238000001035 drying Methods 0.000 claims description 12
- -1 polytetrafluoroethylene Polymers 0.000 claims description 12
- 238000004519 manufacturing process Methods 0.000 claims description 11
- 239000002131 composite material Substances 0.000 claims description 8
- 229910052697 platinum Inorganic materials 0.000 claims description 8
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- 125000000524 functional group Chemical group 0.000 claims description 7
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 7
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- 238000006460 hydrolysis reaction Methods 0.000 claims description 5
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- 239000005871 repellent Substances 0.000 claims description 5
- 229910052707 ruthenium Inorganic materials 0.000 claims description 5
- MLXDKRSDUJLNAB-UHFFFAOYSA-N triethoxy(3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-heptadecafluorodecyl)silane Chemical compound CCO[Si](OCC)(OCC)CCC(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)C(F)(F)F MLXDKRSDUJLNAB-UHFFFAOYSA-N 0.000 claims description 5
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 claims description 4
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 claims description 3
- 238000007598 dipping method Methods 0.000 claims description 3
- 238000007654 immersion Methods 0.000 claims description 2
- 125000000542 sulfonic acid group Chemical group 0.000 claims description 2
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- 150000002500 ions Chemical class 0.000 description 15
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- GPRLSGONYQIRFK-UHFFFAOYSA-N hydron Chemical compound [H+] GPRLSGONYQIRFK-UHFFFAOYSA-N 0.000 description 7
- 239000012153 distilled water Substances 0.000 description 5
- 239000001257 hydrogen Substances 0.000 description 5
- 229910052739 hydrogen Inorganic materials 0.000 description 5
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 5
- 239000005518 polymer electrolyte Substances 0.000 description 5
- 229910000077 silane Inorganic materials 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
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- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
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- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000001157 Fourier transform infrared spectrum Methods 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 241000976924 Inca Species 0.000 description 1
- 229910002849 PtRu Inorganic materials 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 150000001343 alkyl silanes Chemical class 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
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- 230000008021 deposition Effects 0.000 description 1
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- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000010411 electrocatalyst Substances 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000010954 inorganic particle Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
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- 238000002407 reforming Methods 0.000 description 1
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- 238000005096 rolling process Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 125000001174 sulfone group Chemical group 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical class S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- QQQSFSZALRVCSZ-UHFFFAOYSA-N triethoxysilane Chemical compound CCO[SiH](OCC)OCC QQQSFSZALRVCSZ-UHFFFAOYSA-N 0.000 description 1
- 238000004506 ultrasonic cleaning Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
Description
도 2와 도 3은 실험예 2에서 실시한 Nafion 112 막과 실시예 1의 나노복합막 내의 분자구조를 확인한 FT-IR 스펙트럼 결과이다.
도 4은 실험예 3에서 실시한 용매 함침율 측정결과를 도시한 그래프이다.
도 5는 실험예 3에서 실시한 용매 팽창율 측정결과를 도시한 그래프이다.
도 6은 제조예 1에서 제조한 단위전지의 구조를 나타낸 것이다.
Claims (16)
- 발수성 작용기를 갖는 (헵타데카플루오로-1,1,2,2-테트라하이드로데실)트리에톡시실란으로 제조된 소수성 실리카 나노입자가 분산된 나피온 고분자 막을 포함하며,
상기 소수성 실리카 나노입자는 고분자 나노복합막 전체 중량에 대하여, 10 ~ 22.5 중량%인 것을 특징으로 하는 DMFC(Direct Methanol Fuel Cell)용 고분자 나노복합막. - 삭제
- 삭제
- 삭제
- 나피온 막을 (헵타데카플루오로-1,1,2,2-테트라하이드로데실)트리에톡시실란과 프로판올을 1 : 0.1 ~ 15 부피비로 포함하는 플루오로알킬실란 희석용액에 침지시켜 나피온 막 내부의 이온 클러스터에 플루오로알킬실란을 분산시키는 1 단계;
플루오로알킬실란이 분산된 나피온 막을 메탄올 수용액에 침지시켜 이온클러스터로 분산된 플루오르알킬실란의 가수분해 및 중축합반응을 통해 소수성 실리카 나노입자를 형성시키는 2 단계;
소수성 실리카 나노입자가 형성된 나피온 막을 70 ~ 90℃에서 18 ~ 26 시간 동안 건조시키는 3 단계;
1차 건조된 나피온 막을 100 ~ 120℃에서 2 ~ 3 시간 동안 재건조시키는 4 단계;
재건조된 나피온 막을 0.1 ~ 0.5M H2SO4 수용액에서 산성화시키는 5 단계; 및
산성화된 나피온 막을 세척 및 건조시키는 6 단계;
를 포함하고,
상기 소수성 실리카 나노입자를 고분자 나노복합막 전체 중량에 대하여 10 ~ 22.5 중량% 포함하고 있는 것을 특징으로 하는 DMFC용 고분자 나노복합막의 제조방법. - 제 5 항에 있어서,
상기 나피온 막은 Na를 술폰산기(-SO3H)로 변화시켜 전처리한 것을 특징으로 하는 DMFC용 고분자 나노복합막의 제조방법. - 삭제
- 제 5 항에 있어서,
1 단계의 상기 침지는 15 ~ 35℃에서 8 ~ 16 시간 동안 수행하는 것을 특징으로 하는 DMFC용 고분자 나노복합막의 제조방법. - 제 5 항에 있어서,
2 단계의 상기 침지는 15 ~ 35℃에서 2 ~ 4 시간 동안 수행하며, 상기 메탄올 수용액은 물과 메탄올을 1 : 1 ~ 3 부피비(v/v)로 포함하고 있는 것을 특징으로 하는 DMFC용 고분자 나노복합막의 제조방법. - 제 5 항에 있어서,
6 단계의 상기 세척은 물 또는 초음파로 세척하는 것을 특징으로 하는 DMFC용 고분자 나노복합막의 제조방법. - 제 1 항의 DMFC용 고분자 나노복합막을 포함하고,
상기 고분자 나노복합막의 일측에 접합 형성된 음극과, 상기 고분자 나노복합막의 다른 일측에 접합형성된 양극을 포함하는 것을 특징으로 하는 막-전극 어셈블리. - 제 11 항에 있어서, 상기 음극은 기체확산층을 포함하고 있고, 상기 기체확산층의 기재 전체 중량에 대하여, 0.1 ~ 10 중량%의 PTFE(polytetrafluoroethylene)를 포함하는 것을 특징으로 하는 막-전극 어셈블리.
- 제 11 항에 있어서, 상기 양극은 기체확산층을 포함하고 있고, 상기 기체확산층의 기재 전체 중량에 대하여, 10 ~ 40 중량%의 PTFE(polytetrafluoroethylene)를 포함하는 것을 특징으로 하는 막-전극 어셈블리.
- 제 11 항에 있어서, 상기 양극과 고분자 나노복합막과의 접합면에는 양극 촉매층이 형성하고 있고, 음극과 고분자 나노복합막의 접합막에는 음극 촉매층을 형성하고 있는 것을 특징으로 하는 막-전극 어셈블리
- 제 14 항에 있어서, 상기 양극 촉매층은 백금(Pt)촉매이고, 음극 촉매층은 백금/루테늄(Pt/Ru) 혼합촉매인 것을 특징으로 하는 막-전극 어셈블리
- 제 11 항의 상기 막-전극 어셈블리를 포함하는 메탄올 연료전지.
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US13/016,245 US8592095B2 (en) | 2010-01-28 | 2011-01-28 | High molecular nanocomposite membrane for direct methanol fuel cell, and membrane-electrode assembly and methanol fuel cell including the same |
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EP3511947B1 (en) * | 2016-09-08 | 2020-10-28 | Asahi Kasei Kabushiki Kaisha | Solid polymer electrolyte membrane and method for manufacturing the same |
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