Comprehensive NMR Analysis of Pore Structures in Superabsorbing Cellulose Nanofiber Aerogels.

ABSTRACT: Highly porous cellulose nanofiber (CNF) aerogels are promising, environmentally friendly, reusable, and low-cost materials for several advanced environmental, biomedical, and electronic applications. The aerogels have a complex and hierarchical 3D porous network structure with pore sizes ranging from nanometers to hundreds of micrometers. The morphology of the network has a critical role on the performance of aerogels, but it is difficult to characterize thoroughly with traditional techniques. Here, we introduce a combination of nuclear magnetic resonance (NMR) spectroscopy techniques for comprehensive characterization of pore sizes and connectivity in the CNF aerogels. Cyclohexane absorbed in the aerogels was used as a probe fluid. NMR cryoporometry enabled us to characterize the size dis

SUBMITTER: Kharbanda Y 

PROVIDER: S-EPMC6977143 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature