Optimization of components and assembling in a PEM electrolyzer stack

S. Siracusano; A. Di Blasi; V. Baglio; G. Brunaccini; N. Briguglio; A. Stassi; R. Ornelas; E. Trifoni; V. Antonucci; A. S. Aric

doi:10.1016/j.ijhydene.2010.12.044

Optimization of components and assembling in a PEM electrolyzer stack

S. Siracusano^*, A. Di Blasi, V. Baglio, G. Brunaccini, N. Briguglio, A. Stassi, R. Ornelas, E. Trifoni, V. Antonucci, A. S. Aric

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

98 Citations (Scopus)

Abstract

An optimization study of components and assembling characteristics for a proton exchange membrane (PEM) short stack electrolyzer (3 cells of 100 cm ² geometrical area) was carried out. The electrochemical properties were investigated by polarization, impedance spectroscopy and chrono-potentiometric measurements. A decrease of the ohmic contact resistance between the bipolar plates and the electrode backing layer was obtained by using an appropriate thickness for the gas diffusion layers/current collectors as well as by an optimization of stack compression. The amount of H₂ produced was ∼90 l h^-1 at 60 A (600 mA cm^-2) and 75 °C under 300 W of applied electrical power. No significant leakage or gas recombination was observed. The stack electrical efficiency was 75% and 88%, at 60 A and 75 °C, with respect to the low and high heating value of hydrogen, respectively.

Original language	English
Pages (from-to)	3333-3339
Number of pages	7
Journal	International Journal of Hydrogen Energy
Volume	36
Issue number	5
DOIs	https://doi.org/10.1016/j.ijhydene.2010.12.044
Publication status	Published - Mar 2011
Externally published	Yes

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10.1016/j.ijhydene.2010.12.044

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title = "Optimization of components and assembling in a PEM electrolyzer stack",

abstract = "An optimization study of components and assembling characteristics for a proton exchange membrane (PEM) short stack electrolyzer (3 cells of 100 cm 2 geometrical area) was carried out. The electrochemical properties were investigated by polarization, impedance spectroscopy and chrono-potentiometric measurements. A decrease of the ohmic contact resistance between the bipolar plates and the electrode backing layer was obtained by using an appropriate thickness for the gas diffusion layers/current collectors as well as by an optimization of stack compression. The amount of H2 produced was ∼90 l h-1 at 60 A (600 mA cm-2) and 75 °C under 300 W of applied electrical power. No significant leakage or gas recombination was observed. The stack electrical efficiency was 75% and 88%, at 60 A and 75 °C, with respect to the low and high heating value of hydrogen, respectively.",

keywords = "Hydrogen production, IrO catalyst, Oxygen evolution reaction, PEM electrolyzer, Stack, Water electrolysis",

author = "S. Siracusano and {Di Blasi}, A. and V. Baglio and G. Brunaccini and N. Briguglio and A. Stassi and R. Ornelas and E. Trifoni and V. Antonucci and Aric, {A. S.}",

year = "2011",

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language = "English",

volume = "36",

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TY - JOUR

T1 - Optimization of components and assembling in a PEM electrolyzer stack

AU - Siracusano, S.

AU - Di Blasi, A.

AU - Baglio, V.

AU - Brunaccini, G.

AU - Briguglio, N.

AU - Stassi, A.

AU - Ornelas, R.

AU - Trifoni, E.

AU - Antonucci, V.

AU - Aric, A. S.

PY - 2011/3

Y1 - 2011/3

N2 - An optimization study of components and assembling characteristics for a proton exchange membrane (PEM) short stack electrolyzer (3 cells of 100 cm 2 geometrical area) was carried out. The electrochemical properties were investigated by polarization, impedance spectroscopy and chrono-potentiometric measurements. A decrease of the ohmic contact resistance between the bipolar plates and the electrode backing layer was obtained by using an appropriate thickness for the gas diffusion layers/current collectors as well as by an optimization of stack compression. The amount of H2 produced was ∼90 l h-1 at 60 A (600 mA cm-2) and 75 °C under 300 W of applied electrical power. No significant leakage or gas recombination was observed. The stack electrical efficiency was 75% and 88%, at 60 A and 75 °C, with respect to the low and high heating value of hydrogen, respectively.

AB - An optimization study of components and assembling characteristics for a proton exchange membrane (PEM) short stack electrolyzer (3 cells of 100 cm 2 geometrical area) was carried out. The electrochemical properties were investigated by polarization, impedance spectroscopy and chrono-potentiometric measurements. A decrease of the ohmic contact resistance between the bipolar plates and the electrode backing layer was obtained by using an appropriate thickness for the gas diffusion layers/current collectors as well as by an optimization of stack compression. The amount of H2 produced was ∼90 l h-1 at 60 A (600 mA cm-2) and 75 °C under 300 W of applied electrical power. No significant leakage or gas recombination was observed. The stack electrical efficiency was 75% and 88%, at 60 A and 75 °C, with respect to the low and high heating value of hydrogen, respectively.

KW - Hydrogen production

KW - IrO catalyst

KW - Oxygen evolution reaction

KW - PEM electrolyzer

KW - Stack

KW - Water electrolysis

UR - http://www.scopus.com/inward/record.url?scp=79952241600&partnerID=8YFLogxK

U2 - 10.1016/j.ijhydene.2010.12.044

DO - 10.1016/j.ijhydene.2010.12.044

M3 - Article

SN - 0360-3199

VL - 36

SP - 3333

EP - 3339

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

IS - 5

ER -

Optimization of components and assembling in a PEM electrolyzer stack

Abstract

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