Plasma-Driven Carbon Mobilization Creates a Transient Near-Surface Carbonaceous Interphase for Selective CO2 Conversion into CO.
4 affiliations
- 1Department of Materials Chemistry, Adsorption and Catalysis, Faculty of Chemistry, Nicolaus Copernicus University in Toruń, Gagarina 7, 87-100Toruń, Poland.
- 2Institute of Advanced Studies, Nicolaus Copernicus University in Toruń, Wileńska 4, 87-100Toruń, Poland.
- 3Institute for Catalysis and Energy Solutions, University of South Africa, Christiaan de Wet and Pioneer, Florida1709, Roodepoort, Gauteng, South Africa.
- 4Institute of Future Technology, Zhejiang University of Technology, Hangzhou310014, China.
Abstract
Carbon beds enhance plasma-assisted CO2 conversion into resources, but are commonly treated as stationary reactant surfaces. Here, we show that nonthermal plasma (NTP) continuously mobilizes and reconstructs carbon, generating a transient near-surface carbonaceous interphase. In this study, we test these properties of carbon beds as enabling selective CO production during CO2 decomposition under low-temperature plasma conditions. Graphene oxide/chitosan-derived carbons, amorphous carbon, and graphite were examined under CO2 and Ar using gas-phase FTIR, time-resolved SEM, and Raman spectroscopy. GO@CHT-650 displayed the highest CO2 conversion into CO as well as oxygen-scavenging selectivity. Carbonaceous nanodeposits formed under NTP, developed continuously with exposure time, remained confined to the C-surface, and exhibited morphologies and dimensions dependent on the parent carbon structure. Raman analysis showed that the reconstructed phase remained predominantly disordered. These observations link plasma-driven carbon mobility with reactor performance and reveal a catalyst-reactant duality: individual carbon species are consumed stoichiometrically, whereas the dynamically reconstructed interphase persists as the reaction medium. Efficient plasma-assisted CO2 conversion into CO, therefore, requires a transient near-surface carbonaceous interphase created and sustained by the plasma itself.
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BibTeX
@article{moszczynska2026plasmadriven,
title = {{Plasma-Driven Carbon Mobilization Creates a Transient Near-Surface Carbonaceous Interphase for Selective CO2 Conversion into CO.}},
author = {Julia Moszczynska and Xinying Liu and Marek Wiśniewski},
journal = {The journal of physical chemistry letters},
year = {2026},
month = oct,
doi = {10.1021/acs.jpclett.6c02597},
url = {https://europepmc.org/article/MED/42917158},
note = {CC BY},
}
RIS
TY - JOUR
TI - Plasma-Driven Carbon Mobilization Creates a Transient Near-Surface Carbonaceous Interphase for Selective CO2 Conversion into CO.
AU - Julia Moszczynska
AU - Xinying Liu
AU - Marek Wiśniewski
PY - 2026
DA - 2026/10/01
JO - The journal of physical chemistry letters
DO - 10.1021/acs.jpclett.6c02597
UR - https://europepmc.org/article/MED/42917158
AB - Carbon beds enhance plasma-assisted CO2 conversion into resources, but are commonly treated as stationary reactant surfaces. Here, we show that nonthermal plasma (NTP) continuously mobilizes and reconstructs carbon, generating a transient near-surface carbonaceous interphase. In this study, we test these properties of carbon beds as enabling selective CO production during CO2 decomposition under low-temperature plasma conditions. Graphene oxide/chitosan-derived carbons, amorphous carbon, and graphite were examined under CO2 and Ar using gas-phase FTIR, time-resolved SEM, and Raman spectroscopy. GO@CHT-650 displayed the highest CO2 conversion into CO as well as oxygen-scavenging selectivity. Carbonaceous nanodeposits formed under NTP, developed continuously with exposure time, remained confined to the C-surface, and exhibited morphologies and dimensions dependent on the parent carbon structure. Raman analysis showed that the reconstructed phase remained predominantly disordered. These observations link plasma-driven carbon mobility with reactor performance and reveal a catalyst-reactant duality: individual carbon species are consumed stoichiometrically, whereas the dynamically reconstructed interphase persists as the reaction medium. Efficient plasma-assisted CO2 conversion into CO, therefore, requires a transient near-surface carbonaceous interphase created and sustained by the plasma itself.
SN - 1948-7185
ER -