Block Copolymer Templating as a Path to Porous Nanostructured Carbons with Highly Accessible Nitrogens for Enhanced (Electro)chemical Performance
Article first published online: 8 MAY 2012
Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Macromolecular Chemistry and Physics
Special Issue: Carbon Materials with a Kick!
Volume 213, Issue 10-11, pages 1078–1090, June 14, 2012
How to Cite
McGann, J. P., Zhong, M., Kim, E. K., Natesakhawat, S., Jaroniec, M., Whitacre, J. F., Matyjaszewski, K. and Kowalewski, T. (2012), Block Copolymer Templating as a Path to Porous Nanostructured Carbons with Highly Accessible Nitrogens for Enhanced (Electro)chemical Performance. Macromol. Chem. Phys., 213: 1078–1090. doi: 10.1002/macp.201100691
- Issue published online: 5 JUN 2012
- Article first published online: 8 MAY 2012
- Manuscript Revised: 20 FEB 2012
- Manuscript Received: 25 DEC 2011
- carbon materials;
- porous nanostructures
The design of carbon materials for improved electrochemical systems should combine the preferential occurrence of pyridinic functionalities and a structure that maximizes their exposure to the surface. The carbonization of nitrogen-rich polyacrylonitrile (PAN) retains a high level of nitrogen content, with a large percentage of the functionalities taking the form of pyridinic species at the graphene edges. A block copolymer precursor containing PAN and a second thermally sacrificial block can be converted to a nitrogen-rich carbon material with a mesoporous network mimicking that of the precursor. Here, we highlight the structural advantages of this templating approach and their improvement in several electrochemical systems.