Spin probe interaction and mobility in confined cyclohexane: Effects of pore size and pore surface composition of silica gel matrices (CROSBI ID 270627)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Lukešová, Mirka ; Švajdlenková, Helena ; Reuter, Daniel ; Valić, Srećko ; Loidl, Alois ; Bartoš, Josef
engleski
Spin probe interaction and mobility in confined cyclohexane: Effects of pore size and pore surface composition of silica gel matrices
The spectral behavior of the spin probe TEMPO in the bulk cyclohexane (CHX) and its confined states in a series of silica gels (SG) using ESR is reported. The spectral parameter Azz’ and the characteristic ESR temperature T(50G) of slow to fast regime transition of TEMPO change dramatically in the virgin SG-SIL‘s compared to the bulk CHX sligtly depending on the pore size. These observations result from the interrelation between the mutual interaction of the TEMPO with the SG‘s and the altered phase behavior of the CHX from DSC. This is supported by the modified (silanized) SG matrices.
Cycloalkane ; Confinement ; Spin probe interaction and mobility ; ESR ; Phase transitions ; DSC
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Podaci o izdanju
735
2019.
136756-136762
objavljeno
0009-2614
1873-4448
10.1016/j.cplett.2019.136756