Optimization of a direct carbon fuel cell for operation below 700 °C

Xu, Xiaoyong; Zhou, Wei; Liang, Fengli; Zhu, Zhonghua

doi:10.1016/j.ijhydene.2013.02.066

Cited by 37 publications

(32 citation statements)

References 33 publications

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“…As for the issue of discontinuous refueling, which limits longterm operation of DCFC, Lim et al [9] succeeded in running DCFC for 200 h using CO generated from the reverse Boudouard reaction at 750 C. However, it is noted that fuel reforming from the Boudouard reaction is only possible at temperatures higher than 700 C. In addition to the problem of fuel supply, extensive research is being conducted on lowering the operating temperature of SO-or MC-based DCFCs [22]. In summary, there is no practical method that will support the expansion of TPB at lower temperatures and the continuous refueling as well.…”

Section: Introductionmentioning

confidence: 99%

Thermal decomposition of alkane hydrocarbons inside a porous Ni anode for fuel supply of direct carbon fuel cell: Effects of morphology and crystallinity of carbon

Jalalabadi

et al. 2015

Journal of Power Sources

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Section: Introductionmentioning

confidence: 99%

Thermal decomposition of alkane hydrocarbons inside a porous Ni anode for fuel supply of direct carbon fuel cell: Effects of morphology and crystallinity of carbon

Jalalabadi

et al. 2015

Journal of Power Sources

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“…The fuel‐based investigation reveals that the purified coal is a promising fuel for DC‐SOFCs. Further developments both on more effective purification methods for low‐rank coal and on the anode materials with higher sulfur tolerance would be required to achieve a high fuel compatibility and long‐term sustained performance …”

Section: Discussionmentioning

confidence: 99%

Purified high‐sulfur coal as a fuel for direct carbon solid oxide fuel cells

Jiao

Xue

et al. 2018

Int J Energy Res

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Summary The use of low‐rank coal in a clean and efficient manner is a major challenge facing the current coal technology. A high‐sulfur coal with 4.5 wt% sulfur is chosen to examine the compatibility of the pristine coal and the purified contrast with a solid oxide fuel cell (SOFC) with nickel cermet anodes. Desulfurization of the pristine coal is performed by molten caustic leaching method with a removal ratio of 80%. Analyses of the physicochemical properties of coal samples indicate that the purified coal has a more favorable structure and higher Boudouard reactivity, which is suitable as a fuel for fuel cells. The assessment of electrochemical performance reveals that the purification treatment not only makes the peak power density of SOFCs improve from 115 to 221 mW cm−2 at 900°C but also extends their durability from 1.7 to 11.2 hours under a current density of 50 mA cm−2 at 850°C with a fuel availability increasing from 6.25% to 40%. The postmortem analyses show that far less deposited carbon and nickel sulfide are observed on the anode surface. The fuel‐based investigation reveals that the purified coal is a promising fuel for direct carbon fuel cells.

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“…Therefore, the anode resistance in fuel cells must be reduced to improve their performance further. Xu et al . reported a high‐performance, Sm 0.2 Ce 0.8 O 1.9 (SDC) electrolyte‐supported, molten carbonate CF‐SOFC with a Ba 0.5 Sr 0.5 Co 0.8 Fe 0.2 O 3‐ δ cathode and an optimized anode configuration.…”

Section: Materials and Structural Development Of The Anode In Cf‐sofcsmentioning

confidence: 99%

“… Schematics of the oxygen ions transport through three different anodes of the molten carbonate CF‐SOFCs: a) tape‐casted Ni/SDC, b) pasted Ni infiltrated SDC, and c) blank porous SDC …”

Section: Materials and Structural Development Of The Anode In Cf‐sofcsmentioning

confidence: 99%

Anodes for Carbon‐Fueled Solid Oxide Fuel Cells

Zhou

Jiao

et al. 2015

ChemElectroChem

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Solid oxide fuel cells (SOFCs) have been considered as one of the most promising technologies for high‐efficiency electrical energy generation using a variety of fuels, including hydrogen, natural gas, biogas, carbon monoxide, liquid hydrocarbons and solid carbon. Carbon‐fueled SOFCs (CF‐SOFCs) potentially have the highest volume power density because solid carbon has a fuel energy density of 23.95 kWh L−1, which is approximately 10 times higher than that of liquid hydrogen. However, the reactivity and fluid mobility of carbon is significantly lower than those of gaseous fuels; thus, CF‐SOFCs will be kinetically limited at the anode. Herein, we review the development of anodes in CF‐SOFCs from the perspective of material compositions and microstructures. Challenges and research trends based on the fundamental understanding of the materials science and engineering for anode development in CF‐SOFCs are discussed.

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Optimization of a direct carbon fuel cell for operation below 700 °C

Cited by 37 publications

References 33 publications

Thermal decomposition of alkane hydrocarbons inside a porous Ni anode for fuel supply of direct carbon fuel cell: Effects of morphology and crystallinity of carbon

Thermal decomposition of alkane hydrocarbons inside a porous Ni anode for fuel supply of direct carbon fuel cell: Effects of morphology and crystallinity of carbon

Purified high‐sulfur coal as a fuel for direct carbon solid oxide fuel cells

Anodes for Carbon‐Fueled Solid Oxide Fuel Cells

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