Performance improvement of direct carbon fuel cell by introducing catalytic gasification process

Li, Chen; Shi, Yixiang; Cai, Ningsheng

doi:10.1016/j.jpowsour.2010.01.083

Cited by 115 publications

(88 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…(4), and simultaneously a sufficient amount of O 2À is also produced; then, the i n t e r n a t i o n a l j o u r n a l o f h y d r o g e n e n e r g y x x x ( 2 0 1 5 ) 1 e7 CO 2 chemically obtained from oxygen species is recombined into carbonate ion (CO 3 2À ) with O 2À by Eq. (9). Therefore, the CO 2 is maintained at a very low concentration, and a very high OCV is obtained.…”

Section: Resultsmentioning

confidence: 96%

Oxidation of ash-free coal in a direct carbon fuel cell

Lee

Kim

2015

International Journal of Hydrogen Energy

View full text Add to dashboard Cite

Section: Resultsmentioning

confidence: 96%

Oxidation of ash-free coal in a direct carbon fuel cell

Lee

Kim

2015

International Journal of Hydrogen Energy

View full text Add to dashboard Cite

“…the ability to reduce CO 2 to CO, according to reaction (4) [19]. The presence of CO as an additional reagent for anodic oxidation of carbonaceous fuel should lead to an increase in the current density as well as in the power acquired from the DC-SOFC [20].…”

Section: Analyses Of Solid Fuelsmentioning

confidence: 99%

Carbon as a fuel for efficient electricity generation in carbon solid oxide fuel cells

Skrzypkiewicz

Dudek

2016

E3S Web Conf.

View full text Add to dashboard Cite

Abstract. In this paper, the impact of the physicochemical properties of carbonaceous solid fuels on the performance of a direct carbon solid oxide fuel cell (DC-SOFC) was investigated. High-purity synthetic carbon powders such as carbon black N-220 and Carbo Medicinalis FP5 were chosen for analytical and electrochemical investigations in a DC-SOFC. The research focussed on choosing an optimised, cost-effective, high-purity carbon powder which could be applied as a solid reference fuel for all tests performed on a single DC-SOFC cell as well as on DC-SOFC stack constructions. Most of the electrochemical investigations described in this paper were performed using square DCSOFCs with dimensions of 5 × 5 cm. The relationship between structure, physicochemical properties, and electrochemical reactivity in a DC-SOFC was analysed.

show abstract

“…The heterogeneous SOFCs elementary reactions mechanism shown in Table 2 is the same as that used in our previous papers [34][35][36][37][38]. Both the carbon gasification mechanism without a catalyst and the SOFCs electrochemistry mechanism have been experimentally validated before in similar experimental setups.…”

Section: Sofcs Elementary Reaction Mechanismmentioning

confidence: 99%

“…For a detailed description of the gasification and SOFC membrane-electrode assembly (MEA) models, see Ref. [35][36][37][38]. In the gasification model, the species transport equations and momentum equation of the flow in a porous medium (using Darcy's law) were integrated throughout the carbon bed, while the source terms were evaluated using the applied gasification reactions mechanism.…”

Section: Sofcs Elementary Reaction Mechanismmentioning

confidence: 99%

Using potassium catalytic gasification to improve the performance of solid oxide direct carbon fuel cells: Experimental characterization and elementary reaction modeling

Shi

Wang

et al. 2014

Journal of Power Sources

Self Cite

View full text Add to dashboard Cite

The performance of a solid oxide electrolyte direct carbon fuel cell (SO-DCFC) is limited by the slow carbon gasification kinetics at the typical operating temperatures of cell: 650-850 o C. To overcome such limitation, potassium salt is used as a catalyst to speed up the dry carbon gasification reactions, increasing the power density by five-fold at 700 -850 o C. The cell performance is shown to be sensitive to the bed temperature, emphasizing the role of gasification rates and that of CO production. Given the finite bed size, the cell performance is time-dependent as the amount of CO available changes. A reduced elementary reaction mechanism for potassium-catalyzed carbon gasification was proposed using kinetic data obtained from the experimental measurements. A comprehensive model including the catalytic gasification reactions and CO electrochemistry is used to examine the impact of the catalytic carbon gasification process on the device performance. The power density is maximum around 50% of the OCV, where carbon utilization is also near maximum. Results show that bed height and porosity impact the power density; a thicker bed maintains the power almost constant for longer times while lower porosity delivers higher power density in the early stages.

show abstract

Performance improvement of direct carbon fuel cell by introducing catalytic gasification process

Cited by 115 publications

References 23 publications

Oxidation of ash-free coal in a direct carbon fuel cell

Oxidation of ash-free coal in a direct carbon fuel cell

Carbon as a fuel for efficient electricity generation in carbon solid oxide fuel cells

Using potassium catalytic gasification to improve the performance of solid oxide direct carbon fuel cells: Experimental characterization and elementary reaction modeling

Contact Info

Product

Resources

About