1 OVM - ICCPET HEPTI RRC Kurchatov Institute Prof. Pierre Millet University of Paris - France In-situ electrochemical characterization of PEM Water Electrolysis electrodes 01 st International Workshop on Durability and Degradation Issues in PEM Electrolysis Cells and its Components Freiburg, Germany, March 11-12 2013 OVM - ICCPET HEPTI RRC Kurchatov Institute Outline I. Challenges facing PEM water electrolysis II. Catalysts, SPEs, MEAs, cells, stacks, systems III. Main Electrochemical Tools & Techniques IX. Conclusions IV. Polarization curves V. Cyclic voltametry VI. Electrochemical Impedance Spectroscopy VII. Durability tests VIII. Degradation mechanisms OVM - ICCPET HEPTI RRC Kurchatov Institute I- From materials to processes : challenges facing PEM WE • Performance Performance • Durability Durability • Reliability Reliability • Cost Cost • Scale Scale-up up OVM - ICCPET HEPTI RRC Kurchatov Institute Some PEM WE specifications Scale-up ? Material science MEAs Mono cell Stack Process System OVM - ICCPET HEPTI RRC Kurchatov Institute II- Catalysts, SPEs, MEAs, PEM cells and stacks, systems OVM - ICCPET HEPTI RRC Kurchatov Institute Anodic catalyst: black Ir (2.4 mg.cm -2 ); T cell = 90°C, P = 1 atm. S = 250 cm 2 . Nafion ® -115 membrane. Conventional PGM electrocatalysts OER : Ir black Unsupported PGM particles Magnetron sputtering HER : Pt black Pt40/Vulcan XC-72 Pt/Cnano-tubes Pt/C nanofibers HER : supported PGM particles
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1
OVM - ICCPET
HEPTI RRC
Kurchatov Institute
Prof. Pierre Millet
University of Paris - France
In-situ electrochemical characterization
of PEM Water Electrolysis electrodes
01st International Workshop on Durability and Degradation Issues
in PEM Electrolysis Cells and its Components
Freiburg, Germany, March 11-12 2013
OVM - ICCPET
HEPTI RRC
Kurchatov Institute
Outline
I. Challenges facing PEM water electrolysis
II. Catalysts, SPEs, MEAs, cells, stacks, systems
III. Main Electrochemical Tools & Techniques
IX. Conclusions
IV. Polarization curves
V. Cyclic voltametry
VI. Electrochemical Impedance Spectroscopy
VII. Durability tests
VIII. Degradation mechanisms
OVM - ICCPET
HEPTI RRC
Kurchatov Institute
I- From materials to processes :
challenges facing PEM WE
•• PerformancePerformance
•• DurabilityDurability
•• ReliabilityReliability
•• CostCost
•• ScaleScale--upup
OVM - ICCPET
HEPTI RRC
Kurchatov Institute
Some PEM WE specifications
Scale-up ?
Material science MEAs Mono cell Stack
Process
System
OVM - ICCPET
HEPTI RRC
Kurchatov Institute
II- Catalysts, SPEs,
MEAs, PEM cells and stacks,
systems
OVM - ICCPET
HEPTI RRC
Kurchatov Institute
Anodic catalyst: black Ir (2.4 mg.cm−2);
Tcell = 90°C, P = 1 atm.
S = 250 cm2.
Nafion®-115 membrane.
Conventional PGM electrocatalysts
OER : Ir black
Unsupported PGM particles
Magnetron sputtering
HER : Pt black
Pt40/Vulcan XC-72
Pt/Cnano-tubes
Pt/C nanofibers
HER : supported PGM particles
2
OVM - ICCPET
HEPTI RRC
Kurchatov Institute
Non-PGM electrocatalysts
metal-oximes
M-T. Dinh Nguyen, A. Ranjbari, L. Catala, F. Brisset, P. Millet and A. Aukauloo
Implementing Molecular Catalysts for Hydrogen Production in Proton Exchange Membrane Water