Correction to “Molecular Simulations Shed Light on Potential Uses of Ultrasound in Nitrogen Adsorption Experiments”

Abstract

We found a mistake in our recent work. The mistake was made in the chemical potential at saturation calculation μ 0 *: we reported μ 0 * = −9.596, while the correct value should be −9.332. Therefore, Figures 1−4 and 6 should be replotted, and although the new ones have a similar trend, they have different numerical values. Our conclusions also remain the same. The black dashed vertical lines represent the values corresponding the old saturation chemical potential value. Table 2 is also revised.Langmuir pubs.acs.org/Langmuir Addition/Correction https://dx.

Distinct Enhancement of the Longitudinal Modulus of Liquid Nitrogen in Nanoporous Vycor Glass

“…Though the differences between the adsorbates argon and nitrogen were not explicitly investigated in the publications of the group of Gor, a close look on their figures and data at (or near) the normal boiling points reveals some differences between the two adsorbates. For example, for pores with a diameter of 6 nm the enhancement of β ads is ≈50% for nitrogen 34 and ≈30% for argon. 19 However, an analysis of their results indicates that the absolute values for the enhancement are almost identical for argon and nitrogen, which contrasts somewhat to our experimental results.…”

“…This possibility is the result of the vanishing shear modulus of the confined liquid nitrogen, and the method can also be applied for other adsorbates with a vanishing shear modulus like argon . The longitudinal modulus of the adsorbed liquid nitrogen was not explicitly calculated or considered by Warner and Beamish; however, Maximov and Gor , used this experimental study as starting point for a comparison with their molecular simulations. Warner and Beamish and Maximov and Gor , showed that the effective longitudinal modulus β of the sample jumps above the modulus of the empty sample, β 0 , as soon as the pores are completely saturated with liquid nitrogen.…”

“…The longitudinal modulus of the adsorbed liquid nitrogen was not explicitly calculated or considered by Warner and Beamish; however, Maximov and Gor , used this experimental study as starting point for a comparison with their molecular simulations. Warner and Beamish and Maximov and Gor , showed that the effective longitudinal modulus β of the sample jumps above the modulus of the empty sample, β 0 , as soon as the pores are completely saturated with liquid nitrogen. For partial pore fillings the high compressibility of the remaining vapor in the pores prevents any increase of β above β 0 (see analysis using Wood’s equation for other adsorbates in refs and ).…”

“…For partial pore fillings the high compressibility of the remaining vapor in the pores prevents any increase of β above β 0 (see analysis using determine the longitudinal modulus of the adsorbate from experimental data with the aid of an effective medium analysis. The simulations by Maximov and Gor, 18,34 showed that the longitudinal modulus of confined liquid nitrogen, β N2,ads , is enhanced in comparison to that of bulk nitrogen, β N2,bulk . Also, theory revealed a linear dependence of β N2,ads on the inverse pore diameter, 18,34 similar to previous findings for liquid argon.…”

“…The simulations by Maximov and Gor, 18,34 showed that the longitudinal modulus of confined liquid nitrogen, β N2,ads , is enhanced in comparison to that of bulk nitrogen, β N2,bulk . Also, theory revealed a linear dependence of β N2,ads on the inverse pore diameter, 18,34 similar to previous findings for liquid argon. 10,12,19 Besides this experimental study by Warner and Beamish, 33 we previously measured the shear modulus of adsorbed nitrogen during the liquid−solid phase transition.…”