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1. (WO2018085988) A METHOD OF PROVIDING A GRAPHENE COATING ON A CARBON STEEL SUBSTRATE

Pub. No.:    WO/2018/085988    International Application No.:    PCT/CN2016/105059
Publication Date: Fri May 18 01:59:59 CEST 2018 International Filing Date: Wed Nov 09 00:59:59 CET 2016
IPC: B05D 5/00
C23C 16/26
Applicants: SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.
SHELL OIL COMPANY
INSTITUTE OF PROCESS ENGINEERING, CHINESE ACADEMY OF SCIENCE
Inventors: CAI, Haiyong
DUAN, Chunyang
HVIID, Lene
QIAO, Li
WANG, Yu
Title: A METHOD OF PROVIDING A GRAPHENE COATING ON A CARBON STEEL SUBSTRATE
Abstract:
A method of providing a graphene coating on a carbon steel substrate, at least comprising the steps of (a) providing a carbon steel substrate; (b) heating the carbon steel substrate as provided in step (a) in an oxygen-free chamber in the presence of a carbon source to a temperature above 800℃, thereby obtaining a heated carbon steel substrate; (c) decreasing the surface temperature of the heated carbon steel substrate as obtained in step (b) to lower than 700℃ at a cooling rate of at least 1℃/s, thereby obtaining a cooled graphene-coated carbon steel substrate. The graphene coating reduced the corrosion rate by 54.8%, which confirm the good anti-corrosion ability of the as-grown graphene coating.