Open AccessPreparation of anti‐corrosive high‐conductivity copper–graphene composite film
Author(s) -
Liu Pengzhong,
Chen Xiaohong,
Liu Ping
Publication year - 2018
Publication title -
micro and nano letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.25
H-Index - 31
ISSN - 1750-0443
DOI - 10.1049/mnl.2018.0188
Subject(s) - graphene , materials science , nucleation , corrosion , copper , composite number , sulfidation , chemical engineering , carbon fibers , composite material , electrochemistry , metallurgy , nanotechnology , chemistry , electrode , organic chemistry , sulfur , engineering
Copper matrix/graphene composite films were prepared using copper foil as a growth matrix and ethylene as a carbon source. Research results showed that when the concentration of carbon decreased, nucleation density was low and the graphene grains were larger with better boundaries to other grains. A moderate amount of hydrogen assisted decomposition of the hydrocarbons, but also etched some nucleation sites, favourable for the growth of high‐quality graphene. The H 2 , Ar and carbon source gas (0.931 vol% C 2 H 4 –Ar mixture) with the flow rates of 70, 4000 and 5 sccm and the growth time of 10 s were the parameters chosen to obtain the copper matrix bilayer graphene composite films. The resulted composite film demonstrated electrical conductivity better than copper. Addition of graphene can greatly improve the corrosion resistance of matrix material. This is true whether in the electrochemical corrosion or immersion corrosion in the oxidation and alkaline environments.