Performance of the Iridium Oxide (IrO2)-Modified Titanium Bipolar Plates for the Light Weight Proton Exchange Membrane Fuel Cells

Wang, Szu-Hua; Lui, Wai‐Bun; Peng, Jinchyau; Zhang, Jinsheng

doi:10.1115/1.4024565

Cited by 10 publications

(2 citation statements)

References 9 publications

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“…Thus, in PEM WE systems, less excessive passivation layer formation is essential to enhance energy efficiency. A common solution to the problem of excessive passivation of titanium is to apply a protective layer of precious metals (usually Au, Pt, and IrO 2 ) , to the Ti surface to improve the electrical conductivity and corrosion resistance of the interface. Naturally, it will further increase costs and the dependence of the PEM WE device and technology on precious metals.…”

Section: Introductionmentioning

confidence: 99%

Modifying Ti-Based Gas Diffusion Layer Passivation for Polymer Electrolyte Membrane Water Electrolysis via Electrochemical Nitridation

Liu

Huang

Wang

et al. 2022

ACS Appl. Mater. Interfaces

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A gas diffusion layer represents an important element of collector and stack components used in polymer electrolyte membrane (PEM) water electrolyzers (WE). Nowadays, titanium-based gas diffusion layers (GDLs) have high stability and are frequently employed as anode GDLs, yet reliability issues emerging from passivation have limited their practical deployment. Hence, we develop an inexpensive way of producing high conductivity and corrosion resistance of Ti-based GDLs through electrochemical nitridation. The morphology and content of the nitride phase on the surface of the Ti felt GDL are efficiently regulated by adjusting reduction potential and reaction time. According to X-ray photoelectron spectroscopy studies, the modified Ti felt is coated with ammonium ions and nitrogenincorporated oxides, namely, TiN/TiO x , on the surface. The nitride surface shows a low interfacial contact resistance (ca. 1.0 mΩ cm 2 at 140 N/cm 2 ) and excellent corrosion resistance (0.920 μA cm −2 ) in the simulated PEM WE environments. The electrochemical nitridation provides an economic way to introducing N layers on the surface of the Ti-based GDL with high performance, which is very promising for efficient PEM water electrolysis.

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Section: Introductionmentioning

confidence: 99%

Modifying Ti-Based Gas Diffusion Layer Passivation for Polymer Electrolyte Membrane Water Electrolysis via Electrochemical Nitridation

Liu

Huang

Wang

et al. 2022

ACS Appl. Mater. Interfaces

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“…Moreover, the use of hydrogen as a fuel source poses several risks, such as high flammability and easy ignition. Hence, several research groups have been conducting experiments to improve the activity and durability of catalysts to develop a stable, lightweight fuel cell system for resolving the safety issues associated with fuel cells, and, most importantly, to facilitate the commercialization of fuel cells.…”

Section: Introductionmentioning

confidence: 99%

Effect of Porous Metal Flow Field in Polymer Electrolyte Membrane Fuel Cell under Pressurized Condition

et al. 2017

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A flow field represents an interesting research area related to polymer electrolyte membrane fuel cells (PEMFCs), as it is a component crucial for the distribution of gas‐phase reactants. In this study, a metal foam was characterized and applied as a flow field in a PEMFC unit cell. In addition, the electrochemical performance of the metal foam was compared with that of the commonly used serpentine flow field. At a relative humidity (RH) of 100%, no significant difference in performance was observed between the metal foam and serpentine flow field. However, the performance of a single cell with the metal foam was superior to that of the common flow field under an RH of 20% under pressurized conditions. Furthermore, the factors affecting fuel cell performance by application of the flow field were discussed.

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Similarities and Differences between Gas Diffusion Layers Used in Proton Exchange Membrane Fuel Cell and Water Electrolysis for Material and Mass Transport

Zhang,

Meng,

Chen

et al. 2024

Advanced Science

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Proton‐exchange membrane fuel cells (PEMFCs) and water electrolysis (PEMWE) are rapidly developing hydrogen energy conversion devices. Catalyst layers and membranes have been studied extensively and reviewed. However, few studies have compared gas diffusion layers (GDLs) in PEMWE and PEMFC. This review compares the differences and similarities between the GDLs of PEMWE and PEMFC in terms of their material and mass transport characteristics. First, the GDL materials are selected based on their working conditions. Carbon materials are prone to rapid corrosion because of the high anode potential of PEMWEs. Consequently, metal materials have emerged as the primary choice for GDLs. Second, the mutual counter‐reactions of the two devices result in differences in mass transport limitations. In particular, water flooding and the effects of bubbles are major drawbacks of PEMFCs and PEMWE, respectively; well‐designed structures can solve these problems. Imaging techniques and simulations can provide a better understanding of the effects of materials and structures on mass transfer. Finally, it is anticipated that this review will assist research on GDLs of PEMWE and PEMFC.

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Performance of the Iridium Oxide (IrO2)-Modified Titanium Bipolar Plates for the Light Weight Proton Exchange Membrane Fuel Cells

Cited by 10 publications

References 9 publications

Modifying Ti-Based Gas Diffusion Layer Passivation for Polymer Electrolyte Membrane Water Electrolysis via Electrochemical Nitridation

Modifying Ti-Based Gas Diffusion Layer Passivation for Polymer Electrolyte Membrane Water Electrolysis via Electrochemical Nitridation

Effect of Porous Metal Flow Field in Polymer Electrolyte Membrane Fuel Cell under Pressurized Condition

Similarities and Differences between Gas Diffusion Layers Used in Proton Exchange Membrane Fuel Cell and Water Electrolysis for Material and Mass Transport

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