EPR Characteristics of Activated Carbon for Hydrogen Production by the Thermo-Catalytic Decomposition of Methane |
| A.B. Więckowskia,b, L. Najder-Kozdrowska a, P. Rechnia c, A. Malaika c, B. Krzyżyńska c and M. Kozłowski c
aInstitute of Physics, Faculty of Physics and Astronomy, University of Zielona Góra, Z. Szafrana 4a, 65-516 Zielona Góra, Poland bDepartment of Superconductivity and Phase Transitions, Division of Physics of Dielectrics, and Molecular Spectroscopy, Institute of Molecular Physics, Polish Academy of Sciences, M. Smoluchowskiego 17, 60-179 Poznań, Poland cFaculty of Chemistry, Adam Mickiewicz University, Umultowska 89b, 61-614 Poznań, Poland |
| Received: December 14, 2015 |
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| The electron paramagnetic resonance (EPR) method was used to characterize samples of activated coal before and after reactions of the catalytic decomposition of methane and ethanol at temperatures of 1023 K (750°C), 1123 K (850°C) and 1223 K (950°C). The EPR parameters: spectroscopic splitting factor g, peak-to-peak linewidth ΔBpp, and spin concentration c were measured. During the ethanol-assisted catalytic decomposition of methane carbon-located-spin radicals are partially transformed into oxygen-located-spin radicals. |
DOI: 10.12693/APhysPolA.130.701 PACS numbers: 33.35.+r, 61.66.Hq, 76.30.-v, 82.30.Lp, 82.65.+r, 88.30.ej |