JP4937527B2 - 燃料電池用白金触媒及びこれを含む燃料電池 - Google Patents
燃料電池用白金触媒及びこれを含む燃料電池 Download PDFInfo
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- JP4937527B2 JP4937527B2 JP2005137751A JP2005137751A JP4937527B2 JP 4937527 B2 JP4937527 B2 JP 4937527B2 JP 2005137751 A JP2005137751 A JP 2005137751A JP 2005137751 A JP2005137751 A JP 2005137751A JP 4937527 B2 JP4937527 B2 JP 4937527B2
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- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 title claims description 93
- 239000003054 catalyst Substances 0.000 title claims description 71
- 239000000446 fuel Substances 0.000 title claims description 54
- 229910052697 platinum Inorganic materials 0.000 title claims description 44
- 238000010438 heat treatment Methods 0.000 claims description 18
- 229910052760 oxygen Inorganic materials 0.000 claims description 17
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 16
- 239000001301 oxygen Substances 0.000 claims description 16
- 239000002245 particle Substances 0.000 claims description 11
- 239000003792 electrolyte Substances 0.000 claims description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 8
- 239000007789 gas Substances 0.000 claims description 8
- 239000001257 hydrogen Substances 0.000 claims description 8
- 229910052739 hydrogen Inorganic materials 0.000 claims description 8
- 238000002484 cyclic voltammetry Methods 0.000 claims description 7
- 239000012528 membrane Substances 0.000 claims description 7
- 238000002474 experimental method Methods 0.000 claims description 6
- 230000033116 oxidation-reduction process Effects 0.000 claims description 6
- 239000000243 solution Substances 0.000 claims description 6
- ZOMNIUBKTOKEHS-UHFFFAOYSA-L dimercury dichloride Chemical class Cl[Hg][Hg]Cl ZOMNIUBKTOKEHS-UHFFFAOYSA-L 0.000 claims description 4
- 229910052757 nitrogen Inorganic materials 0.000 claims description 4
- 239000007864 aqueous solution Substances 0.000 claims description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims 4
- 125000004435 hydrogen atom Chemical class [H]* 0.000 claims 2
- 230000000052 comparative effect Effects 0.000 description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 14
- 238000006243 chemical reaction Methods 0.000 description 14
- 229910052799 carbon Inorganic materials 0.000 description 12
- 230000000694 effects Effects 0.000 description 11
- 238000000034 method Methods 0.000 description 10
- 238000006722 reduction reaction Methods 0.000 description 7
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 6
- 229910000510 noble metal Inorganic materials 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 4
- 230000003197 catalytic effect Effects 0.000 description 4
- 238000009792 diffusion process Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 239000000956 alloy Substances 0.000 description 3
- 239000003575 carbonaceous material Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000004745 nonwoven fabric Substances 0.000 description 3
- 150000003057 platinum Chemical class 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- 229910001260 Pt alloy Inorganic materials 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 230000002378 acidificating effect Effects 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000007800 oxidant agent Substances 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- MUMZUERVLWJKNR-UHFFFAOYSA-N oxoplatinum Chemical compound [Pt]=O MUMZUERVLWJKNR-UHFFFAOYSA-N 0.000 description 2
- 239000005518 polymer electrolyte Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 150000007942 carboxylates Chemical class 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000003574 free electron Substances 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 238000009790 rate-determining step (RDS) Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 125000000542 sulfonic acid group Chemical group 0.000 description 1
- TXEYQDLBPFQVAA-UHFFFAOYSA-N tetrafluoromethane Chemical compound FC(F)(F)F TXEYQDLBPFQVAA-UHFFFAOYSA-N 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
- F21L4/00—Electric lighting devices with self-contained electric batteries or cells
- F21L4/04—Electric lighting devices with self-contained electric batteries or cells characterised by the provision of a light source housing portion adjustably fixed to the remainder of the device
-
- 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
- H01M4/88—Processes of manufacture
- H01M4/8803—Supports for the deposition of the catalytic active composition
- H01M4/8807—Gas diffusion layers
-
- 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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/20—Catalysts, in general, characterised by their form or physical properties characterised by their non-solid state
- B01J35/23—Catalysts, in general, characterised by their form or physical properties characterised by their non-solid state in a colloidal state
-
- 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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/33—Electric or magnetic properties
-
- 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
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
- B01J35/391—Physical properties of the active metal ingredient
- B01J35/393—Metal or metal oxide crystallite size
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V33/00—Structural combinations of lighting devices with other articles, not otherwise provided for
- F21V33/0064—Health, life-saving or fire-fighting equipment
-
- 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
- H01M4/8605—Porous 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
- H01M4/88—Processes of manufacture
- H01M4/8878—Treatment steps after deposition of the catalytic active composition or after shaping of the electrode being free-standing body
- H01M4/8882—Heat treatment, e.g. drying, baking
-
- 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
-
- 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
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/10—Fuel cells with solid electrolytes
- H01M8/1004—Fuel cells with solid electrolytes characterised by membrane-electrode assemblies [MEA]
-
- 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
- B01J21/00—Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
- B01J21/18—Carbon
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/02—Details
- H01M8/0202—Collectors; Separators, e.g. bipolar separators; Interconnectors
- H01M8/023—Porous and characterised by the material
- H01M8/0234—Carbonaceous material
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- 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)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Inert Electrodes (AREA)
- Catalysts (AREA)
- Fuel Cell (AREA)
Description
カソード:O2+4H++4e−→2H2O
アノード:H2→2H++2e−
全体反応:2H2+O2→2H2O
市販の炭素担体に担持された白金触媒(Pt/C)(Johnson matthey Co.炭素担体質量に対し、白金が10重量%含まれている)を、常温でN2及びH2混合ガス(N2:H2=1:3)の還元雰囲気下で2.5時間熱処理して、燃料電池用触媒を製造した。
熱処理温度を400℃に変更したことを除いては、比較例1と同一に実施した。
熱処理温度を500℃に変更したことを除いては、比較例1と同一に実施した。
熱処理温度を700℃に変更したことを除いては、比較例1と同一に実施した。
熱処理温度を800℃に変更したことを除いては、比較例1と同一に実施した。
熱処理温度を900℃に変更したことを除いては、比較例1と同一に実施した。
熱処理温度を1000℃に変更したことを除いては、比較例1と同一に実施した。
熱処理温度を1100℃に変更したことを除いては、比較例1と同一に実施した。
Claims (10)
- 還元雰囲気下において800〜900℃で熱処理された燃料電池用白金触媒であって、
硫酸水溶液中で実施されるサイクリックボルタンメトリー実験により、飽和カロメル電極を用いて測定された酸化還元電位(ORP)が430mV以上であり、
前記酸化還元電位(ORP)は、前記白金表面の酸素が還元される電位であることを特徴とする燃料電池用白金触媒。 - 前記酸化還元電位が430mV乃至560mVであることを特徴とする請求項1に記載の燃料電池用白金触媒。
- 前記白金は30乃至150Åの平均粒径を有することを特徴とする請求項1に記載の燃料電池用白金触媒。
- 前記還元雰囲気は、窒素、水素又はこれらの混合ガス雰囲気であることを特徴とする請求項1に記載の燃料電池用白金触媒。
- 前記熱処理工程は1乃至5時間実施することを特徴とする請求項1に記載の燃料電池用白金触媒。
- 電解質膜と;
前記電解質膜の両側に位置し、触媒層を被覆したカソード及びアノードと;を含む燃料電池であって、
前記触媒層は、還元雰囲気下において800〜900℃で熱処理された燃料電池用白金触媒を用い、硫酸水溶液中で実施されるサイクリックボルタンメトリー実験により、飽和カロメル電極を用いて測定された酸化還元電位(ORP)が430mV以上であり、
前記酸化還元電位(ORP)は、前記白金表面の酸素が還元される電位であることを特徴とする燃料電池。 - 前記酸化還元電位が430mV乃至560mVであることを特徴とする請求項6に記載の燃料電池。
- 前記白金は30乃至150Åの平均粒径を有することを特徴とする請求項7に記載の燃料電池。
- 前記還元雰囲気は、窒素、水素又はこれらの混合ガス雰囲気であることを特徴とする請求項6又は7に記載の燃料電池。
- 前記熱処理工程は1乃至5時間実施することを特徴とする請求項6又は7に記載の燃料電池。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040032963A KR100570689B1 (ko) | 2004-05-11 | 2004-05-11 | 연료 전지용 촉매 및 이를 포함하는 연료 전지 |
KR2004-032963 | 2004-05-11 |
Publications (2)
Publication Number | Publication Date |
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JP2005327721A JP2005327721A (ja) | 2005-11-24 |
JP4937527B2 true JP4937527B2 (ja) | 2012-05-23 |
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JP2005137751A Active JP4937527B2 (ja) | 2004-05-11 | 2005-05-10 | 燃料電池用白金触媒及びこれを含む燃料電池 |
Country Status (4)
Country | Link |
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US (1) | US7931998B2 (ja) |
JP (1) | JP4937527B2 (ja) |
KR (1) | KR100570689B1 (ja) |
CN (1) | CN100341181C (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
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US20070003822A1 (en) * | 2005-06-30 | 2007-01-04 | Shyam Kocha | Voltage cycling durable catalysts |
KR100692917B1 (ko) * | 2006-02-17 | 2007-03-12 | 한국화학연구원 | 연료전지용 촉매 개발을 위한 전기화학 분석장치 및 방법 |
JP2007317437A (ja) * | 2006-05-24 | 2007-12-06 | Toyota Motor Corp | 電池用電極触媒の性能評価方法、探索方法、電池用電極触媒及びその電極触媒を用いた燃料電池 |
JP5562968B2 (ja) * | 2009-09-24 | 2014-07-30 | 株式会社東芝 | 集電部材、発電装置、および発電装置用集電部材の製造方法 |
WO2011145225A1 (ja) * | 2010-05-18 | 2011-11-24 | トヨタ自動車株式会社 | 燃料電池用触媒の製造方法 |
JP5759695B2 (ja) * | 2010-09-24 | 2015-08-05 | 株式会社キャタラー | 燃料電池用担持触媒の製造方法 |
JP5384543B2 (ja) | 2011-03-04 | 2014-01-08 | 本田技研工業株式会社 | 燃料電池システム |
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KR100515741B1 (ko) * | 2001-03-08 | 2005-09-20 | 마쯔시다덴기산교 가부시키가이샤 | 고분자 전해질형 연료전지 |
JP4801284B2 (ja) | 2001-07-03 | 2011-10-26 | 富士電機株式会社 | ガス供給ラインの圧力制御方法 |
JP5281221B2 (ja) * | 2001-08-03 | 2013-09-04 | トヨタ自動車株式会社 | 貴金属−卑金属合金系触媒とその評価および製造方法 |
JP4963147B2 (ja) | 2001-09-17 | 2012-06-27 | 株式会社豊田中央研究所 | 燃料電池用電極触媒体およびその製造方法 |
CN1262030C (zh) * | 2002-09-28 | 2006-06-28 | 中国科学院上海微系统与信息技术研究所 | 含助催化元素的铂/碳电催化剂及其制备方法 |
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KR100570689B1 (ko) | 2006-04-12 |
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