Mixed ionic electronic conducting perovskite anode for direct carbon fuel cells

Kulkarni, Aniruddha; Ciacchi, F.T.; Giddey, Sarbjit; Munnings, Christopher; Badwal, S. P. S.; Kimpton, Justin A.; Fini, Daniel

doi:10.1016/j.ijhydene.2012.09.141

Cited by 103 publications

(50 citation statements)

References 30 publications

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“…Both volumes, before and after the test, are reasonably consistent with previously reported volumes for LSCF anodes in DCFC environments [18,19]. The increased lattice volume obtained for the sample after the DCFC test confirmed that the anode was not exposed to air (oxidant) after seal cracking.…”

Section: Investigation Of Anode Structure and Microstructuresupporting

confidence: 89%

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Degradation Mechanism in a Direct Carbon Fuel Cell Operated with Demineralised Brown Coal

Rady

Giddey

Kulkarni

et al. 2014

Electrochimica Acta

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Section: Investigation Of Anode Structure and Microstructuresupporting

confidence: 89%

“…The unit cell volume of LSCF has been shown to expand in the presence of CO at a cell operating temperature of 800 • C [18]. Although at the end of cell test, there was potential broken glass seal causing mixing of anode and cathode chamber gases as evident by the decreased OCV, XRD pattern in Fig.…”

Section: Investigation Of Anode Structure and Microstructurementioning

confidence: 94%

Degradation Mechanism in a Direct Carbon Fuel Cell Operated with Demineralised Brown Coal

Rady

Giddey

Kulkarni

et al. 2014

Electrochimica Acta

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“…Perovskite materials based on strontium titanantes, lanthanum chromite and fluorite materials based on ceria with very low or negligible percentage of metals are the alternative potential candidates for Ni-YSZ conducting anode [35,72,[78][79][80]. The excellent performance is reported in literature with La 0.75 Sr 0.25 Cr 0.5 Mn 0.5 O 3 anode at 900˝C using humidified hydrogen fuel [81].…”

Section: Anodementioning

confidence: 99%

A Brief Description of High Temperature Solid Oxide Fuel Cell’s Operation, Materials, Design, Fabrication Technologies and Performance

et al. 2016

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Today's world needs highly efficient systems that can fulfill the growing demand for energy. One of the promising solutions is the fuel cell. Solid oxide fuel cell (SOFC) is considered by many developed countries as an alternative solution of energy in near future. A lot of efforts have been made during last decade to make it commercial by reducing its cost and increasing its durability. Different materials, designs and fabrication technologies have been developed and tested to make it more cost effective and stable. This article is focused on the advancements made in the field of high temperature SOFC. High temperature SOFC does not need any precious catalyst for its operation, unlike in other types of fuel cell. Different conventional and innovative materials have been discussed along with properties and effects on the performance of SOFC's components (electrolyte anode, cathode, interconnect and sealing materials). Advancements made in the field of cell and stack design are also explored along with hurdles coming in their fabrication and performance. This article also gives an overview of methods required for the fabrication of different components of SOFC. The flexibility of SOFC in terms fuel has also been discussed. Performance of the SOFC with varying combination of electrolyte, anode, cathode and fuel is also described in this article.

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“…Increase in crystallite size of LSCF on the Ni/YSZ anode due to sintering of perovskite crystallites suggests possible occurrence of a decomposition/re-oxidation process for LSCF. Co-and Fe-based perovskites can be decomposed to separate metal and metal oxide phases in reducing atmospheres [55,63,64]. Re-oxidation of separate metal/metal oxide phases has been observed to reproduce perovskites with large crystallite size [65].…”

Section: Figure 2 V-i Curves Andmentioning

confidence: 99%

La0.6Sr0.4Co0.2Fe0.8O3 Perovskite: A Stable Anode Catalyst for Direct Methane Solid Oxide Fuel Cells

Mirzababaei

Chuang

2014

Catalysts

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Direct methane solid oxide fuel cells, operated by supplying methane to a Ni/YSZ anode, suffer from degradation via accumulation of carbon deposits on the Ni surface. Coating a 40 µm thin film of La 0.6 Sr 0.4 Co 0.2 Fe 0.8 O 3 (LSCF) perovskite on the Ni/YSZ anode surface decreased the amount of carbon deposits, slowing down the degradation rate. The improvement in anode durability could be related to the oxidation activity of LSCF which facilitates oxidation of CH 4 and carbon deposits. Analysis of the crystalline structure of LSCF revealed that LSCF was stable in the reducing anode environment under H 2 and CH 4 flow at 750 °C and retained its perovskite structure throughout the 475 h long-term stability test.

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Mixed ionic electronic conducting perovskite anode for direct carbon fuel cells

Cited by 103 publications

References 30 publications

Degradation Mechanism in a Direct Carbon Fuel Cell Operated with Demineralised Brown Coal

Degradation Mechanism in a Direct Carbon Fuel Cell Operated with Demineralised Brown Coal

A Brief Description of High Temperature Solid Oxide Fuel Cell’s Operation, Materials, Design, Fabrication Technologies and Performance

La0.6Sr0.4Co0.2Fe0.8O3 Perovskite: A Stable Anode Catalyst for Direct Methane Solid Oxide Fuel Cells

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