High performance of microtubular solid oxide fuel cells using Nd<sub>2</sub>NiO<sub>4+δ</sub>-based composite cathodes

Laguna‐Bercero, M. A.; Hanifi, Amir Reza; Monzón, Hernán; Cunningham, Joshua; Etsell, Thomas H.; Sarkar, Partha

doi:10.1039/c4ta00665h

Cited by 58 publications

(38 citation statements)

References 35 publications

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“…The most significant change is the decrease of the LF contribution for the CY cell under negative polarization (SOEC conditions), as a consequence of the optimized gas diffusion within the Ni-YSZ support. Positive impacts of using calcined YSZ in developing a porous YSZ microstructure for conversion to an anode or cathode upon infiltration has been previously shown by the authors1415161819212728. When cell infiltration for the purpose of improving the catalytic activity or the electronic/ionic conductivity (or both) of the anode is planned, an anode with larger pore size and higher porosity (~50%) than TY is desirable (due to pore clogging during infiltration).…”

Section: Resultsmentioning

confidence: 97%

“…The effectiveness of using calcined YSZ in the development of a porous structure for infiltration of nickel1415 or LSBT16 anodes as well as LSM1718 or Nd nickelate19 cathodes has been previously shown by the authors. Despite many studies on the effect of nickel particle size and content on anode microstructure and thus performance, there is a lack of information in the literature regarding the effect of using processed YSZ in the conventional nickel-YSZ anode on electrochemical performance.…”

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confidence: 92%

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Tailoring the Microstructure of a Solid Oxide Fuel Cell Anode Support by Calcination and Milling of YSZ

Hanifi

Laguna‐Bercero

Sandhu

et al. 2016

Sci Rep

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In this study, the effects of calcination and milling of 8YSZ (8 mol% yttria stabilized zirconia) used in the nickel-YSZ anode on the performance of anode supported tubular fuel cells were investigated. For this purpose, two different types of cells were prepared based on a Ni-YSZ/YSZ/Nd2NiO4+δ-YSZ configuration. For the anode preparation, a suspension was prepared by mixing NiO and YSZ in a ratio of 65:35 wt% (Ni:YSZ 50:50 vol.%) with 30 vol.% graphite as the pore former. As received Tosoh YSZ or its calcined form (heated at 1500 °C for 3 hours) was used in the anode support as the YSZ source. Electrochemical results showed that optimization of the fuel electrode microstructure is essential for the optimal distribution of gas within the support of the cell, especially under electrolysis operation where the performance for an optimized cell (calcined YSZ) was enhanced by a factor of two. In comparison with a standard cell (containing as received YSZ), at 1.5 V and 800 °C the measured current density was −1380 mA cm−2 and −690 mA cm−2 for the cells containing calcined and as received YSZ, respectively. The present study suggests that the anode porosity for improved cell performance under SOEC is more critical than SOFC mode due to more complex gas diffusion under electrolysis mode where large amount of steam needs to be transfered into the cell.

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Section: Resultsmentioning

confidence: 97%

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confidence: 92%

Tailoring the Microstructure of a Solid Oxide Fuel Cell Anode Support by Calcination and Milling of YSZ

Hanifi

Laguna‐Bercero

Sandhu

et al. 2016

Sci Rep

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“…Furthermore, the large and irregular pores of the 430 L substrate enhance steam absorption and diffusion. It can be observed that the performance in SOEC mode is significantly better than in SOFC mode, probably due to the hyperstoichiometry of the NNO Ruddlesden-Popper phases leading to fast oxygen diffusion through bulk the materials and rapid exchange kinetics [14,21,22]. In addition the Nd 2 O 3 could play a significant role at the oxygen electrode as its presence may hinder the sintering of NNO particles, and thus maintaining a large surface area.…”

Section: Resultsmentioning

confidence: 94%

“…1(a). Although the Nd 2 O 3 phase is observed, previous studies have shown that it does not affect the cathode performance [14,15].…”

Section: Methodsmentioning

confidence: 97%

High performance solid oxide electrolysis cell with impregnated electrodes

Chen

Zhou

Liu

et al. 2015

Electrochemistry Communications

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“…Fluctuations in current are mainly due to imperfect current collector attachment especially at the anode side and coarsening of the electrode particles. 43 After four days, some slight variation was observed but there was no significant decrease in the performance compared to the start of the test. Where, E ao = Activation energy due to ohmic contribution, and E ap = Activation energy due to polarization contribution.…”

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confidence: 99%

High Performance Tubular Solid Oxide Fuel Cell Based on Ba_0.5Sr_0.5Ce_0.6Zr_0.2Gd_0.1Y_0.1O_3-δProton Conducting Electrolyte

Amiri

Singh

Sandhu

et al. 2018

J. Electrochem. Soc.

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In this work, synthesis and characterization of an anode supported tubular solid oxide fuel cell based on Ba 0.5 Sr 0.5 Ce 0.6 Zr 0.2 Gd 0.1 Y 0.1 O 3-δ (BSCZGY) electrolyte has been investigated. Anode-supported Ni -yttria-stabilized zirconia (YSZ) anode was fabricated via slip casting; BSCZGY electrolyte and BSCZGY -La 0.6 Sr 0.4 Co 0.2 Fe 0.8 O 3 (LSCF) composite cathode were coated on support using dip coating, respectively. The chemical compatibility of fuel cell components at sintering temperatures has been investigated by powder X-ray diffraction, and no severe reactions were detected. Electrochemical examination under air/H 2 + 3 vol. % H 2 O showed superior performance achieving a maximum power density of 1 W/cm 2 at 850 • C, among the best compared to tubular -geometry oxygen conductor solid oxide fuel cells reported earlier and one of the highest reported for a proton conductor electrolyte in literature. Electrochemical impedance spectroscopy was used to examine the electrochemical performance of the full cell at different temperatures, and a detailed analysis was done to distinguish the contribution of ohmic and polarization resistances of the cell. ASR values were 3.47 .cm 2 , 1.81 .cm 2 , 1.23 .cm 2 , and 1.05 .cm 2 at 600, 700, 800, and 850 • C, respectively. Analysis of activation energy associated with charge and mass transfer based on fitting of impedances revealed that concentration polarization is the major contributor to the total resistance. The long-term stability for more than 96 hours of operation under load showed no significant degradation, which demonstrated the steady behavior of the cell. A solid oxide fuel cell (SOFC) is a solid-state electrochemical device which converts the chemical energy stored in the fuel directly into electrical energy resulting in high efficiency which along with low environmental impact, quiet operation, and low maintenance makes SOFC highly suitable for stationary power generation applications. 1Traditional SOFCs employ Ni-YSZ cermet, oxide-ion conducting yttria-stabilized zirconia (YSZ), and lanthanum strontium manganite as the anode, electrolyte and cathode, respectively.2 To reduce the overpotentials associated with these materials, the cell needs to run at elevated temperatures near 1000• C. 3 This negatively affects the choice of available materials mostly for interconnects and sealants and their long-term stability. 4 To reduce the operating temperature of SOFC, one of the alternative is to develop new materials for cell components. Oxide ion conducting electrolytes La 0.9 Sr 0.1 Ga 0.

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High performance of microtubular solid oxide fuel cells using Nd₂NiO_4+δ-based composite cathodes

Abstract: Cathodes of porous YSZ supports infiltrated with Nd2NiO4+δ nanoparticles are offered as an alternative solution for IT-SOFC cathodes, presenting maximum power densities of 0.4 W cm−2 at 600 °C.

Cited by 58 publications

References 35 publications

Tailoring the Microstructure of a Solid Oxide Fuel Cell Anode Support by Calcination and Milling of YSZ

Tailoring the Microstructure of a Solid Oxide Fuel Cell Anode Support by Calcination and Milling of YSZ

High performance solid oxide electrolysis cell with impregnated electrodes

High Performance Tubular Solid Oxide Fuel Cell Based on Ba_0.5Sr_0.5Ce_0.6Zr_0.2Gd_0.1Y_0.1O_3-δProton Conducting Electrolyte

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High performance of microtubular solid oxide fuel cells using Nd2NiO4+δ-based composite cathodes

Abstract: Cathodes of porous YSZ supports infiltrated with Nd2NiO4+δ nanoparticles are offered as an alternative solution for IT-SOFC cathodes, presenting maximum power densities of 0.4 W cm−2 at 600 °C.

Cited by 58 publications

References 35 publications

Tailoring the Microstructure of a Solid Oxide Fuel Cell Anode Support by Calcination and Milling of YSZ

Tailoring the Microstructure of a Solid Oxide Fuel Cell Anode Support by Calcination and Milling of YSZ

High performance solid oxide electrolysis cell with impregnated electrodes

High Performance Tubular Solid Oxide Fuel Cell Based on Ba0.5Sr0.5Ce0.6Zr0.2Gd0.1Y0.1O3-δProton Conducting Electrolyte

Contact Info

Product

Resources

About

High performance of microtubular solid oxide fuel cells using Nd₂NiO_4+δ-based composite cathodes

High Performance Tubular Solid Oxide Fuel Cell Based on Ba_0.5Sr_0.5Ce_0.6Zr_0.2Gd_0.1Y_0.1O_3-δProton Conducting Electrolyte