Physical Sciences and Mathematics Commons^™

Enhanced Electrochemical Performances Of Hollow-Structured N-Doped Carbon Derived From A Zeolitic Imidazole Framework (Zif-8) Coated By Polydopamine As An Anode For Lithium-Ion Batteries, Da-Won Lee, Achmad Yanuar Maulana, Chaeeun Lee, Jungwook Song, Cybelle M. Futalan, Jongsik Kim

Environmental Science Faculty Publications

Doping heteroatoms such as nitrogen (N) and boron (B) into the framework of carbon materials is one of the most efficient methods to improve the electrical performance of carbon-based electrodes. In this study, N-doped carbon has been facilely synthesized using a ZIF-8/polydopamine precursor. The polyhedral structure of ZIF-8 and the effective surface-coating capability of dopamine enabled the formation of N-doped carbon with a hollow structure. The ZIF-8 polyhedron served as a sacrificial template for hollow structures, and dopamine participated as a donor of the nitrogen element. When compared to ZIF-8-derived carbon, the HSNC electrode showed an improved reversible capacity of …