Fe-catalyzed etching of exfoliated graphite through carbon hydrogenation
Guangjun Cheng, Christina A. Hacker, Curt A. Richter, Angela R. Hight Walker
We present an investigation on the etching of graphite catalyzed by the particles produced by dewetting Fe thin films on graphite in forming gas. Raman mapping of the etched graphite shows the thickness variation in the etched channels and reveals that the edges are predominately terminated with zigzag configuration. X-ray diffraction and photoelectron spectroscopy measurements identify that the catalytic particles are Fe with the presence of iron carbide and oxides. Furthermore, the catalytic particles can be re-activated upon a second annealing in forming gas.
, Hacker, C.
, Richter, C.
and Hight, A.
Fe-catalyzed etching of exfoliated graphite through carbon hydrogenation, Carbon, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=918763
(Accessed June 4, 2023)