| About this Abstract |
| Meeting |
MS&T21: Materials Science & Technology
|
| Symposium
|
Synthesis, Characterization, Modeling and Applications of Functional Porous Materials
|
| Presentation Title |
Integrated Multi-characterization Approach to Understand Pore Size Distributions in Natural Porous Materials |
| Author(s) |
V. V. Rohit Bukka, Pankaj Sarin |
| On-Site Speaker (Planned) |
V. V. Rohit Bukka |
| Abstract Scope |
Characterizing pore-size distribution (PSD) in porous materials is challenging due to the wide range of pores and their interconnectivity. Often no single experimental method is suitable, and PSD can only be determined by combining multiple techniques. In this study mercury intrusion porosimetry (MIP) and gas adsorption (GA) were used to measure PSD in natural shales and zeolites. Fundamental differences in the working principles of each method can lead to overestimating porosity in certain ranges and compromise seamless integration of measured PSDs. In order to overcome this limitation, multimodal porosity was evaluated as a function of particle size by both methods. Bulk samples were ground and separated into different size ranges for MIP and GA measurements. In this presentation results for particle size influence on PSD, permeability and porosity will be discussed while aiming to establish a relationship between corrected distributions from GA and MIP. |