Influence of anode's microstructure on electrochemical performance of solid oxide direct carbon fuel cells

Liu, Chao; Pu, Jiangge; Chen, Xing; Ma, Zheng; Ding, Xiao; Zhou, Juan; Wang, Shaorong

doi:10.1016/j.ijhydene.2020.02.119

Cited by 17 publications

(8 citation statements)

References 30 publications

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“…For nearly 15 years, metallic meshes have been successfully used for electrode contacting both µT-SOFC electrodes [115,116]. Meshes can be made by hatching wire into a network or bought preformed with a range of thicknesses and mesh aperture sizes available.…”

Section: Meshesmentioning

confidence: 99%

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The Development of Current Collection in Micro-Tubular Solid Oxide Fuel Cells—A Review

2021

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Micro-tubular solid oxide fuel cells (µT-SOFCs) are suited to a broad range of applications with power demands ranging from a few watts to several hundred watts. µT-SOFCs possess inherently favourable characteristics over alternate configurations such as high thermo-mechanical stability, high volumetric power density and rapid start-up times, lending them particular value for use in portable applications. Efficient current collection and interconnection constitute a bottleneck in the progression of the technology. The development of current collector designs and configuration reported in the literature since the inception of the technology are the focus of this study.

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Section: Meshesmentioning

confidence: 99%

“…A recent study where a nickel anode side mesh and a silver cathode mesh were used as current collectors was reported by Liu et al [116] in 2020. Operating on H 2 , the current density at 0.7 V was 0.52 A•cm −2 at 850 • C. The ASR of the cell was 0.1 Ω•cm 2 .…”

Section: Meshesmentioning

confidence: 99%

The Development of Current Collection in Micro-Tubular Solid Oxide Fuel Cells—A Review

2021

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“…The lesser reported Ohmic losses in the anode/cathode supported SOFCs are due to the use of thinner electrolytes. Additionally, cathode‐supported SOFCs have numerous advantages over anode‐supported SOFCs, including lower cost cathode material and thin anode those could prevent carbon build‐up when employed with hydrocarbon fuels 20‐22 . A porous metal is introduced as a support to the functional anode in the third generation (metal supported‐SOFCs), and these are intended to operate at lower operating temperature to prevent metal corrosion.…”

Section: Introductionmentioning

confidence: 99%

A review on materials, advantages, and challenges in thin film based solid oxide fuel cells

Chasta

Himanshu

Dhaka

2022

Intl J of Energy Research

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Summary In accomplishment of massive energy demand, the solid oxide fuel cells (SOFCs) have proven as apotheosis candidates due to their high energy conversion efficiencies, low pollution exhaust, fuel flexibility, and environmental friendliness which make these the most promising alternatives to conventional electricity generators. Despite numerous advantages of SOFCs, large‐scale industrial applications are yet to be realized owing to their high operating temperatures (800°C‐1000°C). To lower the operating temperature, it is crucial to minimize ionic resistances which can be accomplished by reducing the electrolyte thickness to lesser than 5 μm. Therefore, present article embraces a concise review on conventional materials, designs, and generations of SOFCs with their compatibility and drawbacks. The strengths and limitations of conventional and advanced tools for fabricating thin film based SOFCs (TF‐SOFCs) as well as the associated properties of electrolytes and electrodes are thoroughly examined, and further route cast is provided to attain better performance. The present review encourages the development of TF‐SOFCs using advanced techniques employing ultrathin single and bilayer electrolytes which can have potential to reduce the operating temperature of SOFCs from 450°C to 600°C region and pave the way for global commercialization.

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“…The direct utilization of various solid carbonaceous materials as fuels is the most distinctive feature of DCFC. Some solid carbon fuels, like graphite, carbon black [16][17][18][19][20][21][22][23] and different types of coal fuel [24][25][26][27][28][29] have been used in various DCFC configurations.…”

Section: Introductionmentioning

confidence: 99%

Review of molten carbonate-based direct carbon fuel cells

Cui

Gong

et al. 2021

Mater Renew Sustain Energy

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Direct carbon fuel cell (DCFC) is a promising technology with high energy efficiency and abundant fuel. To date, a variety of DCFC configurations have been investigated, with molten hydroxide, molten carbonate or oxides being used as the electrolyte. Recently, there has been particular interest in DCFC with molten carbonate involved. The molten carbonate is either an electrolyte or a catalyst in different cell structures. In this review, we consider carbonate as the clue to discuss the function of carbonate in DCFCs, and start the paper by outlining the developments in terms of molten carbonate (MC)-based DCFC and its electrochemical oxidation processes. Thereafter, the composite electrolyte merging solid carbonate and mixed ionic–electronic conductors (MIEC) are discussed. Hybrid DCFC (HDCFCs ) combining molten carbonate and solid oxide fuel cell (SOFC) are also touched on. The primary function of carbonate (i.e., facilitating ion transfer and expanding the triple-phase boundaries) in these systems, is then discussed in detail. Finally, some issues are identified and a future outlook outlined, including a corrosion attack of cell components, reactions using inorganic salt from fuel ash, and wetting with carbon fuels.

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Influence of anode's microstructure on electrochemical performance of solid oxide direct carbon fuel cells

Cited by 17 publications

References 30 publications

The Development of Current Collection in Micro-Tubular Solid Oxide Fuel Cells—A Review

The Development of Current Collection in Micro-Tubular Solid Oxide Fuel Cells—A Review

A review on materials, advantages, and challenges in thin film based solid oxide fuel cells

Review of molten carbonate-based direct carbon fuel cells

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