Oxygen transport, thermal and electrochemical properties of NdBa0.5Sr0.5Co2O5+δ cathode for SOFCs

Subardi, Adi; Liao, Kun-Yu; Fu, Yen‐Pei

doi:10.1016/j.jeurceramsoc.2018.01.022

Cited by 37 publications

(24 citation statements)

References 61 publications

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“…The solid-state reaction method is used to make the SSBF cathodes in the traditional way. The method was used for preparing the cathode material, which has been reported in our group's previous papers [21][22][23]. Using zirconia balls, a stoichiometric volume of metallic oxide compounds was mixed in the presence of ethanol 96 % in solution for 12 hours.…”

Section: Materials and Experimental Methodsmentioning

confidence: 99%

Design of solid oxide structure on the composite cathode for IT-SOFC

Kamal

Susanto

Subarkah

et al. 2021

EEJET

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Solid oxide structure of the cobalt-free composite has been exploited as a new cathode material for IT-SOFCs. The composite model system was synthesized using the metallic oxide material, which was formed by a solid-state reaction technique. The generation of the Sm0.5Sr0.25Ba0.25FeO3-δ (SSBF) model system was carried out during the sintering process. The weight loss and oxygen content were investigated by thermal gravimetric analysis (TG). Meanwhile, X-ray diffraction characterized the structure of the composite and thermal conductivity tested the conductivity properties. The results showed that the structure of the SSBF composite demonstrated the perovskite single phase leading to the structural design. The decomposition and evaporation of the constituent elements of the composite corresponded to weight losses during the constructing process. The oxygen content of the model system was 2.98 after the calcination process. The electrical conductivity value reached 2 S cm-1 at 400 °C and increases to a maximum of 7.5 S cm-1 at 710 °C. The metallic element played to generating the conductive behavior at the low temperature, while the ionic structure acted as elevated temperature. So, mixed ionic and electric conductors (MIEC) were employed comprehensively for creating the conductive properties. Based on the structure and conductivity results, the SSBF composite has a good chance as an alternative cathode material with a perovskite single phase for future TI-SOFCs applications

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Section: Materials and Experimental Methodsmentioning

confidence: 99%

Design of solid oxide structure on the composite cathode for IT-SOFC

Kamal

Susanto

Subarkah

et al. 2021

EEJET

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“…The Rp values increased gradually with time from 25.77 Ω cm 2 for the initial 2 h to 38.77 Ω cm 2 for 96 h long-term testing. A slight increase in cathodic polarization resistance is observed that an increasingrate is around 13.8%h -1 from the initial 2 h to 96 h. Cathode delamination from electrolyte may be one possible cause of increasing in polarization resistance at initial fast degradation [24]. The delamination between layers causes the decline of reaction site for ORR, leading to increase polarization resistance.…”

Section: Long Term Testing Of Sbcmentioning

confidence: 98%

Crystal structure, thermal expansion and long-term behaviors of SmBaCoO_5+δ as cathode for intermediate-temperature solid oxide fuel cells

Subardi¹,

2018

MATEC Web Conf.

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SmBaCo2O5+δ (SBC) was studied as cathode material for intermediate-temperature solid oxide fuel cells (IT-SOFCs). The crystal structure, thermal expansion behavior, and electrochemical performance with long-term operation of SBC were characterized. An orthorhombic layered perovskite structure was observed in SBC cathode by a GSAS program for refinement. The average thermal expansion coefficient (TEC) is 21.6 x 10-6K-1 in the temperature range of 100oC-800oC. For long-term testing, the polarization resistance of SBC cathode increases gradually from 25.77 Ω cm2 for 2 h to 38.77 Ω cm2 for 96 h at 600°C, and an increasing-rate for polarization resistance is around 13,8% h-1. Based on the electrochemical properties, SBC cathode with mixed ionic and electronic conductor (MIEC) behavior is a potential cathode for intermediate temperature solid oxide fuel cells based on a SDC electrolyte.

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“…Electroless plating bath typically contains metal-salts, reducing agent (i.e., formaldehyde), alkaline hydroxide (i.e sodium hydroxide), chelating agents (i.e., EDTA, Rochelle salts), stabilizer and brightener. This process is conducted at bath temperature in the range 45–65 °C [ 296 , 297 , 298 , 299 ]. A versatile explanation of mechanism of electroless plating process based on electrochemical reactions is presented [ 300 , 301 , 302 ].…”

Section: Electroless Plating Proceduresmentioning

confidence: 99%

3D-MID Technology for Surface Modification of Polymer-Based Composites: A Comprehensive Review

et al. 2020

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The three-dimensional molded interconnected device (3D-MID) has received considerable attention because of the growing demand for greater functionality and miniaturization of electronic parts. Polymer based composite are the primary choice to be used as substrate. These materials enable flexibility in production from macro to micro-MID products, high fracture toughness when subjected to mechanical loading, and they are lightweight. This survey proposes a detailed review of different types of 3D-MID modules, also presents the requirement criteria for manufacture a polymer substrate and the main surface modification techniques used to enhance the polymer substrate. The findings presented here allow to fundamentally understand the concept of 3D-MID, which can be used to manufacture a novel polymer composite substrate.

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Oxygen transport, thermal and electrochemical properties of NdBa0.5Sr0.5Co2O5+δ cathode for SOFCs

Cited by 37 publications

References 61 publications

Design of solid oxide structure on the composite cathode for IT-SOFC

Design of solid oxide structure on the composite cathode for IT-SOFC

Crystal structure, thermal expansion and long-term behaviors of SmBaCoO_5+δ as cathode for intermediate-temperature solid oxide fuel cells

3D-MID Technology for Surface Modification of Polymer-Based Composites: A Comprehensive Review

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Oxygen transport, thermal and electrochemical properties of NdBa0.5Sr0.5Co2O5+δ cathode for SOFCs

Cited by 37 publications

References 61 publications

Design of solid oxide structure on the composite cathode for IT-SOFC

Design of solid oxide structure on the composite cathode for IT-SOFC

Crystal structure, thermal expansion and long-term behaviors of SmBaCoO5+δ as cathode for intermediate-temperature solid oxide fuel cells

3D-MID Technology for Surface Modification of Polymer-Based Composites: A Comprehensive Review

Contact Info

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Crystal structure, thermal expansion and long-term behaviors of SmBaCoO_5+δ as cathode for intermediate-temperature solid oxide fuel cells