Structure of supercritical CO2 between 0 and 100°C and, for pressure between 50 and 250 bar: data about nearest neighbours
SuperCritical CO2 fluids have become increasingly used by many industrials. A first series of experiments demonstrated that the results exhibit a contribution at small angles around Q < 0.1 Å-1. In addition to the small-angle scattering signal, an additional oscillation is visible in the 0.4-0.5 Å-1, which will help to discriminate between different models. At large angles, a broad maximum is visible and seems to be composed of two contributions. Their relative intensity and position vary significantly depending on P and T. Experiments (6-02-606) will be performed on D11 for the identification of any lamellar type structure in some (P,T) region. Based on the CO2 geometry (‘diameter/length’ ratio of about 2.6) and on its polarization, it is supposed that these two aspects are the organizing principles of the global molecular arrangement that will be seen with D11. The goal of the present proposal (in the continuity of 6-02-591 and 6-02-606) is to gain basic data about nearest neighbours distance and number of first nearest neighbours on D4. Moreover, we wish to complete data on small/large angle on D16 for gaining data about the liquid structure for a reference for the model.
The data is currently only available to download if you are a member of the proposal team.
The recommended format for citing this dataset in a research publication is in the following format:
Saint-Antonin; CRISTIGLIO Viviana; CUELLO Gabriel; GEBEL Gerard; Lebaigue O.; PONCELET Olivier and RENARD Olivier. (2021). Structure of supercritical CO2 between 0 and 100°C and, for pressure between 50 and 250 bar: data about nearest neighbours. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.6-02-611
This data is not yet public
This data is not yet public
ILL has partnered with DataCite as the registration agency
for data persistent identifiers.