FR2445031A1 - Electrode having reduced oxygen polarisation - comprises e.g. nickel grid coated with carbon black catalyst, iron naphtho:cyanine and binder e.g. PTFE - Google Patents

Electrode having reduced oxygen polarisation - comprises e.g. nickel grid coated with carbon black catalyst, iron naphtho:cyanine and binder e.g. PTFE

Info

Publication number
FR2445031A1
FR2445031A1 FR7835630A FR7835630A FR2445031A1 FR 2445031 A1 FR2445031 A1 FR 2445031A1 FR 7835630 A FR7835630 A FR 7835630A FR 7835630 A FR7835630 A FR 7835630A FR 2445031 A1 FR2445031 A1 FR 2445031A1
Authority
FR
France
Prior art keywords
polarisation
electrode
ptfe
binder
iron
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7835630A
Other languages
French (fr)
Other versions
FR2445031B1 (en
Inventor
Michel Savy
Jacques-Emile Guerchais
Jean Sala-Pala
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Etat Francais
Original Assignee
Etat Francais
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Etat Francais filed Critical Etat Francais
Priority to FR7835630A priority Critical patent/FR2445031A1/en
Publication of FR2445031A1 publication Critical patent/FR2445031A1/en
Application granted granted Critical
Publication of FR2445031B1 publication Critical patent/FR2445031B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • H01M4/96—Carbon-based electrodes
    • 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
    • B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/16—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
    • B01J31/1616—Coordination complexes, e.g. organometallic complexes, immobilised on an inorganic support, e.g. ship-in-a-bottle type catalysts
    • 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
    • B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/16—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes
    • B01J31/18—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes containing nitrogen, phosphorus, arsenic or antimony as complexing atoms, e.g. in pyridine ligands, or in resonance therewith, e.g. in isocyanide ligands C=N-R or as complexed central atoms
    • B01J31/1805—Catalysts comprising hydrides, coordination complexes or organic compounds containing coordination complexes containing nitrogen, phosphorus, arsenic or antimony as complexing atoms, e.g. in pyridine ligands, or in resonance therewith, e.g. in isocyanide ligands C=N-R or as complexed central atoms the ligands containing nitrogen
    • B01J31/181—Cyclic ligands, including e.g. non-condensed polycyclic ligands, comprising at least one complexing nitrogen atom as ring member, e.g. pyridine
    • B01J31/1825—Ligands comprising condensed ring systems, e.g. acridine, carbazole
    • B01J31/183—Ligands comprising condensed ring systems, e.g. acridine, carbazole with more than one complexing nitrogen atom, e.g. phenanthroline
    • 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
    • H01M4/9008—Organic or organo-metallic compounds
    • 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
    • B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
    • B01J2531/02—Compositional aspects of complexes used, e.g. polynuclearity
    • B01J2531/0238—Complexes comprising multidentate ligands, i.e. more than 2 ionic or coordinative bonds from the central metal to the ligand, the latter having at least two donor atoms, e.g. N, O, S, P
    • B01J2531/0241—Rigid ligands, e.g. extended sp2-carbon frameworks or geminal di- or trisubstitution
    • B01J2531/025—Ligands with a porphyrin ring system or analogues thereof, e.g. phthalocyanines, corroles
    • 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
    • B01J2531/00—Additional information regarding catalytic systems classified in B01J31/00
    • B01J2531/80—Complexes comprising metals of Group VIII as the central metal
    • B01J2531/84—Metals of the iron group
    • B01J2531/842—Iron
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Inert Electrodes (AREA)

Abstract

An electrode designed to eliminate H2O2 and reduce electrochemical polarisation of oxygen esp. in reversible generators in alkaline medium and in fuel cells, comprises a collecting metal grid e.g. Ni covered with a C black catalyst coated with iron naphthalocynanine and a binder comprising e.g. PTFE. The electrode exhibits higher conductivity than prior art electrodes and does not require thermal pretreatment of the C black at high temps. Therefore, polarisation is significantly lower at high current densities, thus allowing the activity and service life of the catalysts to be increased.
FR7835630A 1978-12-19 1978-12-19 Electrode having reduced oxygen polarisation - comprises e.g. nickel grid coated with carbon black catalyst, iron naphtho:cyanine and binder e.g. PTFE Granted FR2445031A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7835630A FR2445031A1 (en) 1978-12-19 1978-12-19 Electrode having reduced oxygen polarisation - comprises e.g. nickel grid coated with carbon black catalyst, iron naphtho:cyanine and binder e.g. PTFE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7835630A FR2445031A1 (en) 1978-12-19 1978-12-19 Electrode having reduced oxygen polarisation - comprises e.g. nickel grid coated with carbon black catalyst, iron naphtho:cyanine and binder e.g. PTFE

Publications (2)

Publication Number Publication Date
FR2445031A1 true FR2445031A1 (en) 1980-07-18
FR2445031B1 FR2445031B1 (en) 1981-01-16

Family

ID=9216282

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7835630A Granted FR2445031A1 (en) 1978-12-19 1978-12-19 Electrode having reduced oxygen polarisation - comprises e.g. nickel grid coated with carbon black catalyst, iron naphtho:cyanine and binder e.g. PTFE

Country Status (1)

Country Link
FR (1) FR2445031A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986001642A1 (en) * 1984-09-06 1986-03-13 National Research Development Corporation Electrode for reducing oxygen

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
CA1974 *
EXBK/76 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1986001642A1 (en) * 1984-09-06 1986-03-13 National Research Development Corporation Electrode for reducing oxygen

Also Published As

Publication number Publication date
FR2445031B1 (en) 1981-01-16

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Legal Events

Date Code Title Description
DL Decision of the director general to leave to make available licences of right
TP Transmission of property
ST Notification of lapse