SKM 2021 – scientific programme

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CPP: Fachverband Chemische Physik und Polymerphysik

CPP 3: Polymer Physics

CPP 3.6: Talk

Monday, September 27, 2021, 15:30–15:45, H3

Thermoporometry Characterization of Mesoporous Materials: A Kernel-Based Approach — •Henry R. N. B. Enninful, Dirk Enke, and Rustem Valiullin — Leipzig University, Leipzig, Germany

Detailed characterization of the structure of mesoporous solids presents key insights into the tailored design for various industrial applications such as catalysis, molecular separations and adsorption, among others.

Thermoporometry, as a characterization technique, suffers from some inaccuracies which make it lag behind gas sorption for textural characterization.

Herein, we present a kernel-based approach for the thermoporometry characterization approach which accounts for a varying non-frozen layer thickness due to pore curvature and temperature and thermal fluctuations in especially, very small pores. Additionally, with the help of the serially-connected pore model (SCPM), we reveal disorder in cylindrical pores whose complex morphology results in cooperativity effects in thermodynamic phase behavior.

References [1] Enninful et 2019, Frontiers in Chemistry, doi: 10.3389/fchem.2019.00230. [2] Enninful et 2020, Microporous and Mesoporous Materials 309, 110534.