Local Thermochemical Mechanisms in Direct Solar Graphite Synthesis from Methane

Local Thermochemical Mechanisms in Direct Solar Graphite Synthesis from Methane

Methane pyrolysis is known to produce hydrogen and solid carbon in a variety of thermal processes. However, the generated carbon product typically belongs to a low-value amorphous type. Here, we elucidate the thermochemical mechanisms of a reaction that produces high-quality graphite via direct sola...

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Veröffentlicht in:Energy & fuels 2024-09, Vol.38 (18), p.18087-18089
Hauptverfasser: Xu, Hengrui, Abuseada, Mostafa, Ju, Y. Sungtaek, Spearrin, R. Mitchell, Fisher, Timothy S.
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Anode materials
Carbon
Communication
Deposition
Fibers
Hydrocarbons
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container_end_page 18089
container_issue 18
container_start_page 18087
container_title Energy & fuels
container_volume 38
creator Xu, Hengrui
Abuseada, Mostafa
Ju, Y. Sungtaek
Spearrin, R. Mitchell
Fisher, Timothy S.
description Methane pyrolysis is known to produce hydrogen and solid carbon in a variety of thermal processes. However, the generated carbon product typically belongs to a low-value amorphous type. Here, we elucidate the thermochemical mechanisms of a reaction that produces high-quality graphite via direct solar methane pyrolysis on a porous substrate. By comparing graphite deposition rates and local reaction zone temperatures of exposed and shadowed regions from the same experiment, we clarify the effects of thermolysis and photolysis in this emission-free process that both decarbonizes a fuel and produces a critical material for the sustainable energy transition.
doi_str_mv 10.1021/acs.energyfuels.4c03327
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subjects Anode materials
Carbon
Communication
Deposition
Fibers
Hydrocarbons
title Local Thermochemical Mechanisms in Direct Solar Graphite Synthesis from Methane
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