Optimization of components and assembling in a PEM electrolyzer stack

S. Siracusano

doi:10.1016/j.ijhydene.2010.12.044

Optimization of components and assembling in a PEM electrolyzer stack

2011-03-01

100

PRE

AI

DOI：10.1016/j.ijhydene.2010.12.044

原文链接

原文求助

摘要

En 中文

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 H-2 produced was similar to 90 1 H-1 at 60 A (600 mA cm(-2)) and 75 degrees 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 degrees C, with respect to the low and high heating value of hydrogen, respectively. Copyright (C) 2010, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.

Keyword:

PEM electrolyzer

Stack

Hydrogen production

Water electrolysis

IrO2 catalyst

Oxygen evolution reaction

Optimization of components and assembling in a PEM electrolyzer stack

摘要

AI总结

期刊

机构

引用论文