(528e) Mesoporous Carbon Nanocapsules from Enzymatically Polymerized Polyphenols Confined in Silica Aerosol Particles

Zheng, T. - Presenter, Tulane University
Zhan, J. - Presenter, Tulane University
Pang, J. - Presenter, University of New Mexico
Tan, G. - Presenter, Tulane University
He, J. - Presenter, Tulane University
McPherson, G. L. - Presenter, Tulane University
Lu, Y. - Presenter, University of California, Los Angeles
John, V. T. - Presenter, Tulane University

We describe a simple and efficient approach to synthesize mesoporous carbon nanocapsules using an environmentally benign biocatalyzed carbon precursor. Enzymatically polymerized poly(4-ethylphenol) has been encapsulated in silica particles through an aerosol-assisted process. Carbonization of the polymer silica nanocomposite leads to a silica carbon nanocapsule composite. The subsequent removal of silica by dilute HF results in mesoporous carbon nanocapsules with a hollow core and a porous shell as revealed by TEM and SEM. The obtained nanocapsules show extremely high BET surface areas with well defined pore size distributions.