Corrosion-resistant coating for cathode current collector and wet-seal area of molten carbonate fuel cells

Kim, Min-Joong; Youn, Juyoung; Lim, Jeonghoon; Eom, KwangSup; Cho, EunAe; Kwon, Hyuk‐Sang

doi:10.1016/j.ijhydene.2018.02.196

Cited by 6 publications

(2 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, employing a coating that provides a thermal barrier has been found to be the most effective and economical method for enhancing the corrosion resistance. Coating technologies improve the surface characteristics of the base material with respect to its environment, and the use of these technologies has expanded with the improvement of coating material properties, such as high-temperature corrosion resistance [32][33][34][35][36][37], abrasion resistance [38,39], and electromagnetic properties [40,41]. Such surface-coating technologies offer the advantage of improving the high-temperature corrosion resistance of the base material without significantly affecting its mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

High-Temperature Corrosion Behavior of Al-Coated Ni-Base Alloys in Lithium Molten Salt for Electroreduction

et al. 2021

View full text Add to dashboard Cite

The electrolytic reduction of a spent oxide fuel involves the liberation of oxygen in a molten salt LiCl–Li2O electrolyte, which creates a corrosive environment for typical structural materials. In this study, the corrosion behaviors of Al–Y-coated specimens in a Li molten salt kept under an oxidizing atmosphere at 650 °C for 72 and 168 h were investigated. The weight loss fraction of the coated specimen to bare specimen was approximately 60% for 3% Li2O and 54% for 8% Li2O at 72 h, and approximately 38% for 3% Li2O and 30% for 8% Li2O at 168 h. Corrosion was induced in the LiCl–Li2O molten salt by the basic oxide ion O2− via the basic flux mechanism, and the corrosion product was found to be dependent on the activity of the O2− ion. The increase in weight loss may have been caused by the increase in the O2− concentration due to the increase in the Li2O concentration rather than being because of the increased reaction time. The Al–Y coating was found to be beneficial for hot corrosion resistance, which can be useful for handling high-temperature lithium molten salt under an oxidizing atmosphere.

show abstract

Section: Introductionmentioning

confidence: 99%

High-Temperature Corrosion Behavior of Al-Coated Ni-Base Alloys in Lithium Molten Salt for Electroreduction

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Molten Carbonate Fuel Cells (MCFCs) are electrochemical devices developed for electricity generation. For this reason, much of the past MCFC research was focused on new materials for increased cell performance Baizeng et al, 1998;Kim et al, 2006;Özkan et al, 2015), resistance to pollutants and corrosion (Hernandez et al, 2014;Nguyen et al, 2013;Kim et al, 2018), the effects of operating conditions (Di Giulio et al, 2013;Rexed et al, 2014;Devianto et al, 2016), and the development of electrochemical models to aid theoretical studies and the design of cells, stacks and plants (Audasso et al, 2016;Liu and Weng, 2010;Ma et al, 2009;Meléndez-Ceballos et al, 2015;Szczęśniak et al, 2020;Lee et al, 2010). More recently, a new application of MCFCs for the conversion of industrial waste to produce electricity as thermoelectrochemical has also been developed (Kandhasamy et al, 2020;Kandhasamy et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Experimental and Modeling Investigation of CO3=/OH– Equilibrium Effects on Molten Carbonate Fuel Cell Performance in Carbon Capture Applications

et al. 2021

View full text Add to dashboard Cite

Molten Carbonate Fuel Cells (MCFCs) are used today commercially for power production. More recently they have also been considered for carbon capture from industrial and power generation CO2 sources. In this newer application context, our recent studies have shown that at low CO2/H2O cathode gas ratios, water supplements CO2 in the electrochemical process to generate power but not capture CO2. We now report the direct Raman observation of the underlying carbonate-hydroxide equilibrium in an alkali carbonate eutectic near MCFC operating conditions. Our improved electrochemical model built on the experimental equilibrium data adjusts the internal resistance terms and has improved the representation of the MCFC performance. This fundamentally improved model now also includes the temperature dependence of cell performance. It has been validated on experimental data collected in single cell tests. The average error in the simulated voltage is less than 4% even when extreme operating conditions of low CO2 concentration and high current density data are included. With the improvements, this electrochemical model is suitable for simulating industrial cells and stacks employed in a wide variety of carbon capture applications.

show abstract

Corrosion behavior of Fe based container alloys in molten Na2CO3-K2CO3 as thermal energy storage medium for reversible solid oxide cells

Wang,

Liu,

Liu

et al. 2023

Corrosion Science

View full text Add to dashboard Cite

Corrosion-resistant coating for cathode current collector and wet-seal area of molten carbonate fuel cells

Cited by 6 publications

References 24 publications

High-Temperature Corrosion Behavior of Al-Coated Ni-Base Alloys in Lithium Molten Salt for Electroreduction

High-Temperature Corrosion Behavior of Al-Coated Ni-Base Alloys in Lithium Molten Salt for Electroreduction

Experimental and Modeling Investigation of CO3=/OH– Equilibrium Effects on Molten Carbonate Fuel Cell Performance in Carbon Capture Applications

Corrosion behavior of Fe based container alloys in molten Na2CO3-K2CO3 as thermal energy storage medium for reversible solid oxide cells

Contact Info

Product

Resources

About