DK3051614T3 - Katalysator til elektrode, sammensætning til dannelse af gasdiffusionselektrode, gasdiffusionselektrode, membranelektrodeenhed og brændselscellestak - Google Patents

Katalysator til elektrode, sammensætning til dannelse af gasdiffusionselektrode, gasdiffusionselektrode, membranelektrodeenhed og brændselscellestak Download PDF

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DK3051614T3
DK3051614T3 DK15835698.0T DK15835698T DK3051614T3 DK 3051614 T3 DK3051614 T3 DK 3051614T3 DK 15835698 T DK15835698 T DK 15835698T DK 3051614 T3 DK3051614 T3 DK 3051614T3
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electrode
catalyst
electrode catalyst
core
shell
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Kiyotaka Nagamori
Tomoteru Mizusaki
Yoko Nakamura
Hiroshi Igarashi
Yasuhiro Seki
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N E Chemcat Corp
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    • 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
    • H01M4/921—Alloys or mixtures with metallic elements
    • H—ELECTRICITY
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    • H01M4/8647—Inert electrodes with catalytic activity, e.g. for fuel cells consisting of more than one material, e.g. consisting of composites
    • H01M4/8657—Inert electrodes with catalytic activity, e.g. for fuel cells consisting of more than one material, e.g. consisting of composites layered
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    • B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
    • B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
    • B01J23/24—Chromium, molybdenum or tungsten
    • B01J23/30—Tungsten
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    • 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
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    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
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    • 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
    • B01J35/396—Distribution of the active metal ingredient
    • B01J35/397—Egg shell like
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B01J35/50—Catalysts, in general, characterised by their form or physical properties characterised by their shape or configuration
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    • B01J35/70—Catalysts, in general, characterised by their form or physical properties characterised by their crystalline properties, e.g. semi-crystalline
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    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
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    • B01J37/0201—Impregnation
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • B01J37/02—Impregnation, coating or precipitation
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    • 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]
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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
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  • Organic Chemistry (AREA)
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  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
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Claims (15)

1. Elektrodekatalysator, der omfatter: en elektrisk ledende bærer og katalysatorpartikler understøttet på bæreren, hvor katalysatorpartiklen omfatter en kernedel, der er dannet på bæreren, en første skaldel, der er dannet på kernedelen, og en anden skaldel, der er dannet på den første skaldel, kernedelen indeholder en W-forbindelse, der indeholder mindst en W-karbid, den første skal indeholder simpel Pd, og den anden skal indeholder simpel Pt.
2. Elektrodekatalysator ifølge krav 1, hvor kernedelen yderligere indeholder et W-oxid.
3. Elektrodekatalysator ifølge krav 1 eller 2, hvor kernedelen yderligere indeholder simpel W.
4. Elektrodekatalysator ifølge et hvilket som helst af kravene 1 til 3, hvor en procentdel af det simple Pt R1Pt (atom-%) og en procentdel af det simple Pd R1pd (atom-%) i et analytisk område nær en overflade målt ved røntgen-fotoelektronspektroskopi (XPS) opfylder betingelserne i følgende ligning (1). 0,60<(R1 pt / R1 pd) < 6,00 (1)
5. Elektrodekatalysator ifølge krav 4, hvor R1 Pt er 35 atom-% eller mere.
6. Elektrodekatalysator ifølge krav 4 eller 5, hvor R1Pd er 60 atom-% eller mindre.
7. Elektrodekatalysator ifølge et hvilket som helst af kravene 4 til 6, hvor en procentdel af W afledt fra W-forbindelsen R1w i et analytisk område nær en overflade målt ved røntgen-fotoelektronspektroskopi (XPS) er 30 atom-% eller mindre.
8. Elektrodekatalysator ifølge et hvilket som helst af kravene 1 til 7, hvor en bærerandel af Pt LPt (vægt-%) og en bærerandel af Pd LPd (vægt-%) målt ved ICP-lysemissionsanalyse opfylder betingelserne i følgende ligning (2).
(2)
9. Elektrodekatalysator ifølge et hvilket som helst af kravene 1 til 8, hvor en gennemsnitlig værdi af krysta 11 itstø rrel se af krystalpartiklen målt ved pulverrøntgendiffraktion (XRD) er 3 til 22,0 nm.
10. Elektrodekatalysator ifølge et hvilket som helst af kravene 1 til 9, hvor katalysatoren er fremstillet ved trinnene, der omfatter et kernepartikeldannelsestrin, hvor kernepartiklerne indeholdende W-karbiden og W-oxidet dannes på bæreren, et første skaldeldannelsestrin, hvor den første skaldel dannes på mindst en af overfladen af kernepartiklerne opnået ved kernepartikeldannelsestrinnet, og et andet skaldeldannelsestrin, hvor den anden skaldel dannes på mindst en af overfladen af den første skaldel opnået ved det første skaldeldannelsestrin, og, i forhold til kernepartiklerne opnået ved det første kernepartikeldannelsestrin, en procentdel af W-karbiden R0Wc (atom-%) og en procentdel af W-oxidet ROwo (atom-%) i et analytisk område nær en overflade målt ved rønt-gen-fotoelektronspektroskopi (XPS) opfylder betingelserne i følgende ligning (3).
(3)
11. Elektrodekatalysator ifølge krav 10, hvor, i forhold til kernepartiklerne opnået ved kernepartikeldannelsestrinnet, en procentdel af W-karbiden R0Wc (atom-%) og en procentdel af W-oxidet ROwo (atom-%) i et analytisk område nær en overflade målt ved røntgen-fotoelektronspektroskopi (XPS) opfylder betingelserne i følgende ligning (4).
(4)
12. Sammensætning til dannelse af gasdiffusionselektrode, som omfatter elektrodekatalysatoren ifølge et hvilket som helst af kravene 1 til 11.
13. Gasdiffusionselektrode, som omfatter elektrodekatalysatoren ifølge et hvilket som helst af kravene 1 til 11, eller som er dannet under anvendelse af sammensætningen til dannelse af gasdiffusionselektrode, som omfatter elektrodekatalysatoren, ifølge krav 12.
14. Membranelektrodeenhed (MEA) omfattende gasdiffusionselektroden ifølge krav 13.
15. Brændselscellestak omfattende membranelektrodeenheden (MEA) ifølge krav 14.
DK15835698.0T 2014-08-28 2015-08-27 Katalysator til elektrode, sammensætning til dannelse af gasdiffusionselektrode, gasdiffusionselektrode, membranelektrodeenhed og brændselscellestak DK3051614T3 (da)

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JP2014174564 2014-08-28
PCT/JP2015/004320 WO2016031251A1 (ja) 2014-08-28 2015-08-27 電極用触媒、ガス拡散電極形成用組成物、ガス拡散電極、膜・電極接合体、燃料電池スタック

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US (1) US9893365B2 (da)
EP (1) EP3051614B1 (da)
JP (1) JP5887453B1 (da)
KR (3) KR101786408B1 (da)
CN (1) CN105723551B (da)
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EP3051614A4 (en) 2016-10-12
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KR101786408B1 (ko) 2017-10-17
CA2929051A1 (en) 2016-03-03
CA2929051C (en) 2016-12-13
WO2016031251A1 (ja) 2016-03-03
US20160322644A1 (en) 2016-11-03
KR102023260B1 (ko) 2019-09-19
KR20170095407A (ko) 2017-08-22
KR102023261B1 (ko) 2019-09-19
CN105723551B (zh) 2018-08-31
JP5887453B1 (ja) 2016-03-16
EP3051614B1 (en) 2017-05-10
CN105723551A (zh) 2016-06-29
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