Pt-Sputtered Ti Mesh Electrode for Polymer Electrolyte Membrane Fuel Cells

Kang, Yun Sik; Jo, Sunhee; Choi, Daeil; Kim, Jin Young; Park, Taehyun; Yoo, Sung Jong

doi:10.1007/s40684-019-00077-6

Cited by 10 publications

(6 citation statements)

References 35 publications

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“…Opposite, in prototypes 3 and 4, the membrane is integrated in a MEA made by hot-pressing the membrane in between the cathode and the anode. This whole system was hot-pressed at 120ºC and 1 ton for 5 min (Zamora et al, 2017;Kang et al, 2019).…”

Section: Methodsmentioning

confidence: 99%

Storage of energy using a gas-liquid H2/Cl2 fuel cell: A first approach to electrochemically-assisted absorbers

2020

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Section: Methodsmentioning

confidence: 99%

Storage of energy using a gas-liquid H2/Cl2 fuel cell: A first approach to electrochemically-assisted absorbers

2020

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“…From an experimental point of view, the surface area is a critical factor to design new electrodes because the activity is usually evaluated based on the geometric area. For this reason, many reports of active materials are based on porous substrates, such as carbon felt or Pt/Ti mesh, compared with glassy carbon or conductive glass substrates (Park et al, 2012;Xie et al, 2017;Kang et al, 2019).…”

Section: Surface Areamentioning

confidence: 99%

The Sabatier Principle in Electrocatalysis: Basics, Limitations, and Extensions

2021

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The Sabatier principle, which states that the binding energy between the catalyst and the reactant should be neither too strong nor too weak, has been widely used as the key criterion in designing and screening electrocatalytic materials necessary to promote the sustainability of our society. The widespread success of density functional theory (DFT) has made binding energy calculations a routine practice, turning the Sabatier principle from an empirical principle into a quantitative predictive tool. Given its importance in electrocatalysis, we have attempted to introduce the reader to the fundamental concepts of the Sabatier principle with a highlight on the limitations and challenges in its current thermodynamic context. The Sabatier principle is situated at the heart of catalyst development, and moving beyond its current thermodynamic framework is expected to promote the identification of next-generation electrocatalysts.

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“…Hence, the plates must be made of strong material to withstand the high pressure and must have low electrical resistance. 30,39 Ti mesh and also Pt sputtered Ti mesh are typically used as porous transport layers due to their excellent conductivity and inert properties.. 30,[40][41][42] In stack design, parasitic ohmic losses must be reduced due to surface contact points between plates. Millet et al 32 suggested optimizing the geometry of stacks to ensure homogeneous distribution of water and pressure in each individual cell and of current lines across the MEA and to avoid the formation of hot spots, especially at high current density.…”

Section: Cascadementioning

confidence: 99%

Review on bipolar plates for low‐temperature polymer electrolyte membrane water electrolyzer

Husaini

Alshami

Goh

et al. 2021

Intl J of Energy Research

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Summary Electrolysis coupled with renewable energy resources is the most promising method for green hydrogen production. Polymer electrolyte membrane water electrolyzer (PEMWE) has attracted attention due to its ability to produce high‐purity, compressed hydrogen at relatively mild operating temperatures (70°C‐90°C). The highest cost contributor of the PEMWE stack are the bipolar plates (BPPs). Owing to the severe operating conditions (acidity from the membrane and high localized oxygen concentration) of the PEMWE stack, appropriate material and fabrication are crucial to ensure high performance and durability. The role of BPPs in mass transport and electrical charge transfer must be further understood and correlated to its specific application in PEMWE. At the most basic level, BPPs must have low interfacial contact resistance and high corrosion resistance to withstand the conditions within the stack. The most common base materials for BPP construction include austenitic stainless steel (SS316 and SS403) and Ti due to their flexural strength and ease of mass production. A coating layer is also necessary to protect the substrate from corrosion, and the most popular materials include TiN and other noble metals with nonpassivated oxides and reliable electrical conductivity. The compromise between material robustness and cost is currently a delicate balance toachieve.

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Pt-Sputtered Ti Mesh Electrode for Polymer Electrolyte Membrane Fuel Cells

Cited by 10 publications

References 35 publications

Storage of energy using a gas-liquid H2/Cl2 fuel cell: A first approach to electrochemically-assisted absorbers

Storage of energy using a gas-liquid H2/Cl2 fuel cell: A first approach to electrochemically-assisted absorbers

The Sabatier Principle in Electrocatalysis: Basics, Limitations, and Extensions

Review on bipolar plates for low‐temperature polymer electrolyte membrane water electrolyzer

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