Effect of electrical current on the oxidation behavior of electroless nickel-plated ferritic stainless steel in solid oxide fuel cell operating conditions

Ryter, John; Amendola, Roberta; McCleary, Madisen; Shong, Wei-Ja; Liu, Chien‐Kuo; Spotorno, Roberto; Piccardo, Paolo

doi:10.1016/j.ijhydene.2017.11.055

Cited by 11 publications

(8 citation statements)

References 40 publications

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“…As a preliminary explanation, the presence of water vapor in the stream could induce breakaway oxidation of FSSs [32]. This mechanism eventually leads to the formation of superficial Fe oxides [35,50,51].…”

Section: Surface Characterizationmentioning

confidence: 99%

Characterization of metallic interconnects extracted from Solid Oxide Fuel Cell stacks operated up to 20,000 h in real life conditions: The fuel side

Ghiara

Piccardo

Bongiorno

et al. 2021

International Journal of Hydrogen Energy

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Section: Surface Characterizationmentioning

confidence: 99%

Characterization of metallic interconnects extracted from Solid Oxide Fuel Cell stacks operated up to 20,000 h in real life conditions: The fuel side

Ghiara

Piccardo

Bongiorno

et al. 2021

International Journal of Hydrogen Energy

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“…For more than a decade, ICs have been mainly made of ferritic stainless steels (FSSs). In fact, after the successful reduction of SOFC operation temperature in the range 650 • C to 850 • C, this class of materials was selected among others (e.g., chromium-based alloys and Ni-Cr based alloys) to replace LaCrO 3 -based interconnects since it exhibits adequate application characteristics: a thermal expansion coefficient (TEC) similar to the other ceramic parts of the fuel cell (11.5-14.0 × 10 −6 /K from RT to 800 • C), good thermal and electrical conductivity, good manufacturability and mechanical properties, easy fabricability, affordable cost and, in the case of chromia-former steels containing over 16 wt.% Cr, the formation of a comparatively conductive and protective Cr 2 O 3 scale in presence of an oxidizing atmosphere [13][14][15].…”

Section: Introductionmentioning

confidence: 98%

On the High-Temperature Oxidation and Area Specific Resistance of New Commercial Ferritic Stainless Steels

Bongiorno

Spotorno

Paravidino

et al. 2021

Metals

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Two commercial ferritic stainless steels (FSSs), referred to as Steel A and Steel B, designed for specific high-temperature applications, were tested in static air for 2000 h at 750 °C to evaluate their potential as base materials for interconnects (ICs) in Intermediate Temperature Solid Oxide Fuel Cell stacks (IT-SOFCs). Their oxidation behavior was studied through weight gain and Area Specific Resistance (ASR) measurements. Additionally, the oxide scales developed on their surfaces were characterized by X-Ray Diffraction (XRD), Micro-Raman Spectroscopy (μ-RS), Scanning Electron Microscopy, and Energy Dispersive X-Ray Fluorescence Spectroscopy (SEM-EDS). The evolution of oxide composition, structure, and electrical conductivity in response to aging was determined. Comparing the results with those on AISI 441 FSS, steels A and B showed a comparable weight gain but higher ASR values that are required by the application. According to the authors, Steel A and B compositions need an adjustment (i.e., a plain substitution of the elements which form insulant oxides or a marginal modification in their content) to form a thermally grown oxide (TGO) with the acceptable ASR level.

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“…They are characterized by high efficiency, low emission and fuel flexibility that make them interesting for several applications [1]. One single cell is not enough to reach the needed power output for most applications, so several units are usually connected to create a stack [2,3]. Stacks are constituted by several cells connected using interconnects acting as electrical connections between cells in series keeping the reactant gases separated.…”

Section: Introductionmentioning

confidence: 99%

A Novel Method for Evaluation of Chromium Evaporation from Solid Oxide Fuel Cells Interconnects: A Feasibility Study

Paravidino

Piccardo

Spotorno

2021

MSF

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The evaporation of volatile chromium species from ferritic stainless steels (FSSs) used as interconnect is well-known as degradation source for planar solid oxide fuel cell (SOFC) stacks. This work presents a feasibility study to quantify chromium evaporation from FSSs. It is based on measuring carbon dioxide produced by an intermediate reaction. Cr evaporated is collected by sodium carbonate forming sodium chromate and carbon dioxide. Measuring the resulting carbon dioxide allowed to quantify online the amount of reacted chromium with the carbonates. The post-experiment quantification of sodium chromate confirmed the applicability of the proposed method.

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Effect of electrical current on the oxidation behavior of electroless nickel-plated ferritic stainless steel in solid oxide fuel cell operating conditions

Cited by 11 publications

References 40 publications

Characterization of metallic interconnects extracted from Solid Oxide Fuel Cell stacks operated up to 20,000 h in real life conditions: The fuel side

Characterization of metallic interconnects extracted from Solid Oxide Fuel Cell stacks operated up to 20,000 h in real life conditions: The fuel side

On the High-Temperature Oxidation and Area Specific Resistance of New Commercial Ferritic Stainless Steels

A Novel Method for Evaluation of Chromium Evaporation from Solid Oxide Fuel Cells Interconnects: A Feasibility Study

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