WPs 2, 3: In situ studies of graphene on low-melting-point LMCats
In situ optical microcopy, X-ray spectroscopy, and Raman spectroscopy studies of graphene growth on low-melting-point LMCats (Ga and Sn).
The focus of the LMCat project was the in situ study of graphene growth on liquid copper (melting point of 1358 K). The success in the DirectSepa process will critically depend on the physical and chemical interactions between the graphene and the LMCat. This is expected to be a sensitive function of the LMCat surface chemistry and its temperature. Successful growth of graphene on low-melting-point catalysts of Ga and Sn (with melting points of 303 and 505 K respectively) has already been reported in the literature, using ex situ experimental techniques. To explore the DirectSepa process using these LMCats, two experimental work packages (WPs 2 and 3) are dedicated to the in situ investigation of graphene growth on liquid Ga and Sn. WP2 will be dedicated to the use of in situ optical microscopy and X-ray spectroscopy, while WP3 will be dedicated to the use of in situ Raman spectroscopy.