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

Skrzypkiewicz, Marek; Dudek, Magdalena

doi:10.1051/e3sconf/20161000116

Cited by 2 publications

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References 23 publications

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“…The electrochemical performance of the DC-SOFC is expected to improve when inorganic elements that are included in mineral matter act as natural catalysts in the Boudouard reaction and improve production of CO in the anode chamber of DC-SOFC. Additionally, a low content of sulfur is required due to its negative impact on the Ni-GDC or Ni-YSZ anode structure [1,5,37] The data obtained from the ultimate and technical analyses for the investigated samples from series P0 to P850 is sufficient to select these samples for further investigation as fuel to power the SOFCs.…”

Section: Resultsmentioning

confidence: 99%

The Utilisation of Solid Fuels Derived from Waste Pistachio Shells in Direct Carbon Solid Oxide Fuel Cells

et al. 2021

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The comprehensive results regarding the physicochemical properties of carbonaceous materials that are obtained from pistachio shells support their usage as solid fuels to supply direct carbon solid oxide fuel cells (DC-SOFCs). The influence of preparation conditions on variations in the chemical composition, morphology of the biochar powders, and degree of graphitization of carbonaceous materials were investigated. Based on structural investigations (X-ray diffraction analysis and Raman spectroscopy), it was observed that disordered carbon particles developed during the application of thermal treatments. The use of X-ray fluorescence enabled a comparative analysis of the chemical composition of the inorganic matter in biocarbon-based samples. Additionally, the gasification of carbonaceous-based samples vs. time at a temperature of 850 °C was investigated in a H2O or CO2 gas atmosphere. The analysis demonstrated the conversion rate of biochar obtained from pistachio shells to H2, CH4 and CO during steam gasification. The electrochemical investigations of the DC-SOFCs that were supplied with biochars obtained from pistachio shells were characterized by satisfactory values for the current and power densities at a temperature range of 700–850 °C. However, a higher power output of the DC-SOFCs was observed when CO2 was introduced to the anode chamber. Therefore, the impact of the Boudouard reaction on the performance of DC-SOFCs was confirmed. The chars that were prepared from pistachio shells were adequate for solid fuels for utilization in DC–SOFCs.

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Section: Resultsmentioning

confidence: 99%

The Utilisation of Solid Fuels Derived from Waste Pistachio Shells in Direct Carbon Solid Oxide Fuel Cells

et al. 2021

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High-temperature oxidation of graphite

AriharanS

HazraManis

Balani

2018

Nanomaterials and Energy

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Graphite is used in extreme environments, such as high-temperature gas-cooled reactors and anodes for high-temperature fuel cells, because of its outstanding irradiation performance and oxidation resistance. Its oxidation resistance at high temperature depends on the porosity, ash content, oxidizer concentration, burn-off degree and degree of graphitization. The rate of oxidation was determined for different graphite grades (GLM50, GLM and SPSS) at the isothermal temperature range from 773 to 1273 K in a controlled dry oxygen environment. The degree of graphitization was quantitatively measured using selected area electron diffraction patterns and Raman spectra and was shown to affect the oxidation resistance of the graphite grade. The lowest degree of graphitization (0·67) and a high average pore radius (15·4 nm) in GLM decrease the rate of oxidation due to limited active sites for oxidation. The pore radius and the high graphitic structure reduce the average activation energy of GLM50 (41·8 kJ/mol) compared to those of GLM (48·5 kJ/mol) and SPSS (58·5 kJ/mol) in the boundary-layer-controlled regime in the temperature range 1073–1273 K.

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

Cited by 2 publications

References 23 publications

The Utilisation of Solid Fuels Derived from Waste Pistachio Shells in Direct Carbon Solid Oxide Fuel Cells

The Utilisation of Solid Fuels Derived from Waste Pistachio Shells in Direct Carbon Solid Oxide Fuel Cells

High-temperature oxidation of graphite

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