Kinetic studies of the oxidation of highly oriented pyrolytic graphites

Rodriguez-Reinoso, F.; Thrower, Peter A.; Walker, P.L.

doi:10.1016/0008-6223(74)90042-6

Cited by 43 publications

(22 citation statements)

References 5 publications

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“…Such disorder is very similar to that induced by ion irradiation [9]. It is thus possible that a part of 14 C is preferentially concentrated in such nanoporous carbon graphite waste. It is the basic hypothesis of our method to extract a part of 14 C from the graphite waste matrix [4].…”

Section: Contextmentioning

confidence: 90%

“…An original 14 C decontamination process proposition Very disordered areas of irradiated graphite are the result of very strong neutron fluence and they probably should contain 14 C, whereas less damaged graphite may remain 14 C less rich. Thus, our basic hypothesis is that 14 C concentration is coupled with the nanostructure, the highest 14 C concentration corresponding to the most nanoporous carbons.…”

Section: 2mentioning

confidence: 99%

“…It is the basic hypothesis of our method to extract a part of 14 C from the graphite waste matrix [4]. Note that the remaining 14 C in this graphite waste was produced from 13 C initially linked to the matrix. Indeed, 14 C produced from 14 N was probably released during reactor operation [3].…”

Section: Contextmentioning

confidence: 99%

“…Indeed, 14 C produced from 14 N was probably released during reactor operation [3]. That is why, in the French UNGG reactor graphite waste case, this 14 C is hardly extractible by thermal treatment [10].…”

Section: Contextmentioning

confidence: 99%

“…radionuclides such as 36 Cl, 14 C, and H 3 [1][2][3]. As a consequence, graphite waste is classified in France as low-level long-lived waste.…”

Section: Contextmentioning

confidence: 99%

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Milled graphite as a pertinent analogue of French UNGG reactor graphite waste for a CO2 gasification-based treatment

Pageot

Rouzaud

Ahmad

et al. 2015

Carbon

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Section: Contextmentioning

confidence: 90%

Section: 2mentioning

confidence: 99%

Section: Contextmentioning

confidence: 99%

Section: Contextmentioning

confidence: 99%

“…radionuclides such as 36 Cl, 14 C, and H 3 [1][2][3]. As a consequence, graphite waste is classified in France as low-level long-lived waste.…”

Section: Contextmentioning

confidence: 99%

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Milled graphite as a pertinent analogue of French UNGG reactor graphite waste for a CO2 gasification-based treatment

Pageot

Rouzaud

Ahmad

et al. 2015

Carbon

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An Introduction to the Combustion of Carbon Materials

Picheau

Amar

Derré

et al. 2022

Chemistry A European J

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Combustion is arguably as old as homo sapiens ability to observe and use fire. Despite the long tradition of using carbon combustion for energy production, this reaction is still not fully understood. This can be related to several facts that are intertwined and complicate the investigation, such as the large variety of possible carbon structures, the actual surface structure, porosity, the solid-gas nature of this reaction, diffusion limitation and fundamental reaction steps. In this review, a brief history of carbon combustion science is given, followed by a detailed discussion of the most important aspects of carbon combustion. Special attention is given to limitations for example diffusion. In carbon combustion, kinetic control can rarely be observed. The literature of the fundamental reaction steps actually occurring on the carbon framework is reviewed and it becomes apparent that the reaction is occurring primarily on defects on the basal plane. Thus, the reaction between oxygen and carbon may be used as an analytical tool to provide further insights into novel materials, for example synthetic carbon materials, fibres and graphene type materials. Mastering the combustion reaction in all its complexity may prove to be very valuable in the future.

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On the reactions 2 C + O₂ and C + CO₂ at very low pressure

Knacke¹,

Lemperle

Seidl

2000

Steel Research

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In an ultra high vacuum heterogeneous gas reactions such as 2 C + O2G → 2 COG and C + CO2G → 2 COG often show a less complicated reaction path than under normal pressure. In the present study the graphite sample is a commercial light‐bulb filament, which is extremely resistant against oxidation. Under low pressure the combustion reaction is of first order with a continuous transition to zero order at temperatures between 900 and 1300 K depending on the oxygen pressure. The Boudouard reaction behaves similarly but obeys zero order only around 2000 K and for CO2 pressures around 1 bar. The measured and the statistically calculated reaction rates agree well. An insight of the details of the reaction and chemisorption is determined by the evaluation of experiments carried out in an ultra high vacuum using isotopes such as 13CO2G. The Boudouard equilibrium for graphite can be reached only catalytically, e.g., with sponge iron in statu nascendi.

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Kinetic studies of the oxidation of highly oriented pyrolytic graphites

Cited by 43 publications

References 5 publications

Milled graphite as a pertinent analogue of French UNGG reactor graphite waste for a CO2 gasification-based treatment

Milled graphite as a pertinent analogue of French UNGG reactor graphite waste for a CO2 gasification-based treatment

An Introduction to the Combustion of Carbon Materials

On the reactions 2 C + O₂ and C + CO₂ at very low pressure

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Kinetic studies of the oxidation of highly oriented pyrolytic graphites

Cited by 43 publications

References 5 publications

Milled graphite as a pertinent analogue of French UNGG reactor graphite waste for a CO2 gasification-based treatment

Milled graphite as a pertinent analogue of French UNGG reactor graphite waste for a CO2 gasification-based treatment

An Introduction to the Combustion of Carbon Materials

On the reactions 2 C + O2 and C + CO2 at very low pressure

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Product

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On the reactions 2 C + O₂ and C + CO₂ at very low pressure