Catalytic gasification of carbon in a direct carbon fuel cell

Rady, Adam C.; Giddey, Sarbjit; Kulkarni, Aniruddha; Badwal, S. P. S.; Bhattacharya, Sankar

doi:10.1016/j.fuel.2016.04.047

Cited by 41 publications

(10 citation statements)

References 29 publications

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“…It is well known that conventional coal-fired power plants have a low efficiency and high pollution emission. The direct carbon fuel cells (DCFC) are promising alternative devices which electrochemically convert the chemical energy of solid carbon fuels into electrical energy with a high conversion efficiency [1][2][3]. The solid carbon fuels feeding to the DCFC is easily available from various sources, including petroleum, natural gas, coal, biomass (wood, rice straw, corn stover) and organic waste [4].…”

Section: Introductionmentioning

confidence: 99%

Electrochemical performance of different carbon fuels on a hybrid direct carbon fuel cell

Pan

Wang

et al. 2017

International Journal of Hydrogen Energy

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Recently hybrid direct carbon fuel cells (HDCFC) has attracted great attention, combining the advantages of solid oxide fuel cells and molten carbonate fuel cells, to convert energy of carbon to electricity directly without chemical combustion. In this work, three processed carbon fuels including activated carbon, carbon black and graphite have been employed to investigate influence of the chemical and physical properties of carbon on the HDCFC performance in different anode atmospheres at 650-800 °C. The results reveal that the electrochemical activity is strongly dependent on crystalline structure, thermal stability and textural properties of carbon fuels. The activated carbon samples demonstrate a better performance with a peak power density of 326 mW cm-2 in CO2 at 750 °C, compared to 147 and 59 mW cm-2 with carbon black and graphite samples, respectively. The impedance spectra indicates the polarization resistance plays a more dominated role in the cell performance. When replacing N2 by CO2 purge gas, the power density is the strongly temperature dependent due to the Boudouard reaction.

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Section: Introductionmentioning

confidence: 99%

Electrochemical performance of different carbon fuels on a hybrid direct carbon fuel cell

Pan

Wang

et al. 2017

International Journal of Hydrogen Energy

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“…incorporating Mn x O y catalyst into bituminous coal, with 73 mW/cm 2 maximum power density at 755 o C. In a similar manner, Rady et al [26] found that the infusion of Ca and Fe particles in mW/cm 2 at 850 o C, respectively, as compared to 26 mW/cm 2 with bare carbon. Similar results were also obtained by employing activated carbon as fuel in catalyst-aided DCFC experiments [28,29].…”

Section: Impact Of Catalyst Infusion On Cell Performance In the Absenmentioning

confidence: 83%

“…C + CO 2 → 2CO (8) This particular reaction is thermodynamically favored at temperatures higher than ca. 700 o C and its rate can be enhanced in the presence of a gasification catalyst in the fuel feedstock [2,[25][26][27][28][29].…”

Section: Introductionmentioning

confidence: 99%

The synergistic catalyst-carbonates effect on the direct bituminous coal fuel cell performance

Kaklidis

Strandbakke

Arenillas

et al. 2019

International Journal of Hydrogen Energy

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The current work explores the feasibility to improve the performance of a Direct Carbon Fuel Cell (DCFC): CO 2 + bituminous coal|Co-CeO 2 /YSZ/Ag|Air by infusing a gasification catalyst (Co/CeO 2) and/or Li-K carbonates mixture into the carbon fuel. The different fuel feedstock mixtures were characterized by various methods, involving chemical composition and proximate analysis, particle size distribution (PSD), X-ray diffraction (XRD), N 2 adsorption-desorption (BET method), thermogravimetric analysis (TGA) and scanning electron microscopy (SEM), to gain insight into the effect of catalyst and/or carbonates addition to fuel mixture physicochemical characteristics. An increase of the power output up to ca. 20 and 80% is achieved for carbon/catalyst and carbon/catalyst/carbonates mixtures, respectively, in comparison to bare carbon at 700 o C, demonstrating the pronounced effect of catalyst as well as its potential synergy with carbonates. It was also shown that the achieved maximum power density is directly associated with the CO formation rate, implying the importance of in situ formed CO on the electrochemical performance. The obtained findings are further discussed based also on the corresponding AC impedance spectroscopy studies, which revealed the beneficial effect of fuel feedstock additives (catalyst and/or carbonates) on ohmic and electrode polarization resistances. The present results clearly revealed the feasibility to improve the DCFC performance by concurrently infusing a gasification catalyst and carbonates mixture into fuel feedstock.

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“…The gasification catalysts such as Fe 2 O 3 , CaO and MgO can be loaded on the carbon fuel to expedite the Boudouard reaction [166]. In addition, the performance of SO-DCFC is further improved by mixing redox media such as molten carbonate [167] and molten metal [168] into carbon fuels.…”

Section: Direct Carbon Fuel Cellmentioning

confidence: 99%

Lignocellulosic biomass as sustainable feedstock and materials for power generation and energy storage

Wang

Ouyang

Zhou

et al. 2021

Journal of Energy Chemistry

288

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Catalytic gasification of carbon in a direct carbon fuel cell

Cited by 41 publications

References 29 publications

Electrochemical performance of different carbon fuels on a hybrid direct carbon fuel cell

Electrochemical performance of different carbon fuels on a hybrid direct carbon fuel cell

The synergistic catalyst-carbonates effect on the direct bituminous coal fuel cell performance

Lignocellulosic biomass as sustainable feedstock and materials for power generation and energy storage

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