|About this Abstract
||Materials Science & Technology 2019
||Synthesis, Characterization, Modeling and Applications of Functional Porous Materials
||Understanding the Influence of Novel CO2-responsive Phase Changing Fluids on Directing Flow Through Geo-mimicked and Natural Porous Materials for Energy Recovery
||Greeshma Gadikota, Hassnain Asgar
|On-Site Speaker (Planned)
Rising need to enhance permeability in subsurface environments using water-efficient approaches has called for designing novel materials. In this study, we discuss the design and characterization of CO2-responsive phase changing nanofluids with the ability to form hydrogels to induce fractures in subsurface environments. These fluids are constructed from silica nanoparticles and poly(allylamine) (PAA) as the building blocks. The enhanced development of CO2-induced coiled networks in these novel nanofluids was captured using in-operando Ultra Small Angle X-Ray Scattering, and the changes in the bonding mechanisms leading to the formation of reversible hydrogels are inferred from Fourier Transform-Infrared Spectroscopy measurements. Further, the formation of hydrogels in the pores and its influence on directing flow through porous materials is evaluated. The experimental methodology proposed in this study is intended to provide fundamental insights into the influence of novel phase changing nanofluids on directing flow in subsurface porous environments.
||Definite: At-meeting proceedings