The possible crossover effects of NaNO3 confined in porous media: From bulk to clusters
作者： R. Mu , F. Jin , S. H. Morgan , D. O. Henderson , E. Silberman
DOI: 10.1063/1.467263
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摘要: Differential scanning calorimetry (DSC) and Raman spectra are reported for NaNO3 bulk confined in porous silica with pore radii, rp=2.5, 5, 10, 20 nm. also given a 6 M solution of NaNO3. The melting transition the exhibits 1/rp dependence where rp is radius rp≳5 No observed 2.5 nm pores. Above this size, their appears to be deviation on rp. internal modes material agreement those solid except feature low frequency side ν1 band. external TO mode at 100 cm−1 librational 175 both decrease intensity broaden as decreases bands disappear rp=2.5 An additional peak 70 not or increases ...
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