A review of proton exchange membrane water electrolysis on degradation mechanisms and mitigation strategies

Feng, Qi; Yuan, Xiao‐Zi; Liu, Gaoyang; Wei, Bing; Zhang, Zhen; Li, Hui; Wang, Haijiang

doi:10.1016/j.jpowsour.2017.09.006

Cited by 385 publications

(277 citation statements)

References 224 publications

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“…Although not observed in this work, a high compression may also lead to increased mass transport problems, as the porosity of the PTLs decrease. Furthermore, it may facilitate degradation, as hot sports are more likely to occur due to mechanical wear down [44].…”

Section: Model Supported Analysismentioning

confidence: 99%

Model-supported characterization of a PEM water electrolysis cell for the effect of compression

Frensch

Olesen

Araya

et al. 2018

Electrochimica Acta

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This paper investigates the influence of the cell compression of a PEM water electrolysis cell. A small single cell is therefore electrochemically analyzed by means of polarization behavior and impedance spectroscopy throughout a range of currents (0.01 A cm −2 to 2.0 A cm −2 ) at two temperatures (60• C and 80• C) and eight compressions (0.77 MPa to 3.45 MPa). Additionally, a computational model is utilized to support the analysis. The main findings are that cell compression has a positive effect on overall cell performance due to decreased contact resistances, but is subject to optimization. In this case, no signs of severe mass transport problems due to crushed transport layers are visible in either polarization curves or impedance plots, even at high currents. However, a Tafel plot analysis revealed more than one slope throughout the current range. The change in the Tafel slope is therefore discussed and connected to the electrochemical reaction or an ohmic contribution from a non-electrode component.

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Section: Model Supported Analysismentioning

confidence: 99%

Model-supported characterization of a PEM water electrolysis cell for the effect of compression

Frensch

Olesen

Araya

et al. 2018

Electrochimica Acta

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“…PEMWE can not only avoid the above disadvantages but endows fast response to volatile renewable energy source [5,6] . Currently, high capital cost and short lifetime hinder its further practical application for PEMWE [7,12] . Due to the high consumption and scarcity store of iridium in membrane electrode assembly, PEMWE-made hydrogen possesses high cost [3,5,9] .…”

Section: Introductionmentioning

confidence: 99%

“…Due to the high consumption and scarcity store of iridium in membrane electrode assembly, PEMWE-made hydrogen possesses high cost [3,5,9] . According to DOE's report, only when the investment cost is dramatically decreased from 10 0 0 −20 0 0 € kW −1 to 30 0-60 0 € kW −1 , can PEMWE be competitive for virtually large scale applications [8,12] . Furthermore, short lifespan is another key limitation [10,11] .…”

Section: Introductionmentioning

confidence: 99%

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An effective oxygen electrode based on Ir0.6Sn0.4O2 for PEM water electrolyzers

Jiang

Hao

et al. 2019

Journal of Energy Chemistry

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“…The current collector is a porous media between the membrane electrode assembly (MEA) and bipolar plates, which has a function similar to the gas diffusion layer in Proton exchange membrane fuel cell (PEMFC), such as introducing the current to MEA, providing the mass transfer routes for water and gas evolution . In the PEM water electrolyser, porous titanium plates made by sintered spherical titanium particles are widely used as the current collector, but the corrosion of titanium is unavoidable in acidic, high humidity, and high‐temperature conditions, and this will lead to the passivation of the Ti current collector both in the anode and cathode sides . Furthermore, the released Ti ion can also lead to a considerable performance degradation of MEA due to the cation contamination.…”

Section: Introductionmentioning

confidence: 99%

Design and Performance Investigation of a Carbon‐Free Pt/Ti Cathode with Low Membrane Degradation Rate for Proton Exchange Membrane Water Electrolyser

Shi

Guo

et al. 2019

Energy Tech

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In a proton exchange membrane (PEM) water electrolyser, Pt‐coated porous titanium plate always acts as the current collector both in the anode and cathode. However, the Pt particles on the Ti current collector cannot take part in the electrochemical reactions and thus lead to a lower utilization of the noble metal. In this work, the Pt‐coated Ti current collector is directly used as the cathode in the PEM water electrolyser instead of the conventional Pt/C electrode. To improve the performance, Nafion ionomer is coated on the Pt/Ti electrode to enlarge the electrochemical surface area (ECSA); the ECSA of the Pt/Ti electrode is increased by six times, and the utilization of Pt can be elevated to 45%. The voltage of the electrolyser with the Pt/Ti electrode is only 31 mV higher than the conventional Pt/C catalyst layer at 1 A cm−2. After stability tests, an obvious membrane thinning is observed using Pt/C as the cathode while the membrane of the electrolyser with the ionomer‐coated Pt/Ti cathode does not show a significant change in thickness. The F ion emission rate shows the membrane degradation rate is reduced by 15 times compared with the conventional Pt/C cathode.

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A review of proton exchange membrane water electrolysis on degradation mechanisms and mitigation strategies

Cited by 385 publications

References 224 publications

Model-supported characterization of a PEM water electrolysis cell for the effect of compression

Model-supported characterization of a PEM water electrolysis cell for the effect of compression

An effective oxygen electrode based on Ir0.6Sn0.4O2 for PEM water electrolyzers

Design and Performance Investigation of a Carbon‐Free Pt/Ti Cathode with Low Membrane Degradation Rate for Proton Exchange Membrane Water Electrolyser

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