Impact of Thermal Oxidative Stabilization on the Performance of Lignin-Based Carbon Nanofiber Mats.

ABSTRACT: Lignin is a renewable biopolymer considered as a potential precursor for low-cost carbon materials. Thermal oxidative stabilization (TOS) is an important processing step to maintain fiber geometry during carbonization, yet the impact of  TOS on the properties of lignin-based carbon materials has not been clearly identified in the literature. Yield, change in fiber diameter/distribution, elemental composition, and mechanical properties were explored for both stabilized and carbonized lignin fibers. Vibrational spectroscopy and solid-state ¹³C nuclear magnetic resonance spectroscopy were used to analyze the changes in lignin molecular structure after exposure to various heating conditions during the TOS steps. Further, studies were focused on the effects of TOS conditions on the r

SUBMITTER: Cho M 

PROVIDER: S-EPMC6443214 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature