Direct Carbon Fuel Cells

Badwal, S. P. S.; Ju, HyungKuk; Giddey, Sarb; Kulkarni, Aniruddha

doi:10.1016/b978-0-12-409548-9.10119-8

“…There are three types of DCFCs based on the electrolyte used: molten hydroxide (MOH-DCFCs, operating temperature 500-600°C), molten carbonate (MC-DCFCs, operating temperature 750-800°C), and oxygen ion-conducting ceramic (SO-DCFCs, operating temperature 800-1000°C). [109,110] A hybrid direct carbon fuel cell (HDCFC), which merges a solid oxide fuel cell and a molten carbonate fuel cell which, was investigated with promising results. [111] A solid oxide electrolyte is employed to separate the cathode and anode compartments while a molten carbonate electrolyte is utilized in the anode compartment.…”

Section: Direct Carbon Fuel Cellsmentioning

confidence: 99%

Lignocellulose, Cellulose and Lignin as Renewable Alternative Fuels for Direct Biomass Fuel Cells

Antolini¹

2020

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“…Direct Carbon Fuel Cells (DCFCs) are electrochemical energy devices, similar to conventional fuel cells, fueled, however, with solid feedstock instead of gaseous or liquid fuels [2][3][4]. In DCFCs the chemical energy contained in solid fuels is directly transformed to electricity at high efficiencies and low environmental impact [3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

“…Direct Carbon Fuel Cells (DCFCs) are electrochemical energy devices, similar to conventional fuel cells, fueled, however, with solid feedstock instead of gaseous or liquid fuels [2][3][4]. In DCFCs the chemical energy contained in solid fuels is directly transformed to electricity at high efficiencies and low environmental impact [3][4][5][6][7]. Various solid fuels have been examined in DCFCs including, among others, various coal types, activated carbon, biomass, chars and organic wastes [8][9][10][11][12][13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

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

Kaklidis

¹

,

Strandbakke

²

,

Arenillas

³

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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