- Tytuł:
- Groups of Paramagnetic Centres in Reduced and Methylated Low Rank Coal
- Autorzy:
-
Pilawa, B.
Wachowska, H.
Kozłowski, M.
Więckowski, A.
Najder-Kozdrowska, L. - Powiązania:
- https://bibliotekanauki.pl/articles/1401865.pdf
- Data publikacji:
- 2015-09
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
33.35.+r
61.66.Hq
76.30.-v
76.30.Rn
89.30.ag - Opis:
- Low rank Illinois No. 6 coal was studied by electron paramagnetic resonance EPR spectroscopy. The parameters of EPR spectra (spectroscopic splitting factors g, linewidths $\DeltaB_{pp}$, concentrations of paramagnetic centres N) were measured for row and chemically treated coal (demineralized, reduced and methylated samples). The multi-component structure of experimental spectra of this coal was proved. Two groups of paramagnetic centres responsible for broad Lorentzian 1 and narrow Lorentzian 2 lines exist in studied samples. Paramagnetic centres connected with component lines revealed different behaviour during chemical treatments.
- Źródło:
-
Acta Physica Polonica A; 2015, 128, 3; 264-267
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł