Cobalt-mediated crystallographic etching of graphite from defects

• Main Authors: Wang, Rui, Wang, Jiayi, Gong, Hao, Luo, Zhiqiang, Zhan, Da, Shen, Zexiang, Thong, John T. L.
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2013
• Online Access: https://hdl.handle.net/10356/96818; http://hdl.handle.net/10220/10372
• Institution: Nanyang Technological University

Herein is reported a study of Co-assisted crystallographic etching of graphite in hydrogen environment at temperatures above 750 °C. Unlike nanoparticle etching of graphite surface that leaves trenches, the Co could fill the hexagonal or triangular etch-pits that progressively enlarge, before finall...