Exploring graphene as a corrosion protection barrier

A study on corrosion resistant graphene films on low alloy steel

“…Presence of graphene coatings lowered corrosion rates between 16 and 90 % (Prasai et al 2012;Kirkland et al 2012;Mišković-Stanković et al 2014). The polarization curves, obtained for bare and graphene coated substrates in 0.1 M NaCl solution, showed a decrease in the corrosion current density and a shift in the corrosion potential in the positive direction, thereby confirming a decrease in the corrosion rate (Kirkland et al 2012;Lih et al 2012). Prasai et al reported a decrease in corrosion rates up to 20 times for graphene coated Cu substrates in 0.1 M Na 2 SO 4 solution (Prasai et al 2012).…”

“…Graphene layers for anti-corrosion purposes have been grown on Ni and Cu substrates mostly by CVD methods (Prasai et al 2012;Kirkland et al 2012;Nayak et al 2013;Singh et al 2013;Mišković-Stanković et al 2014;Liang et al 2014). Presence of graphene coatings lowered corrosion rates between 16 and 90 % (Prasai et al 2012;Kirkland et al 2012;Mišković-Stanković et al 2014). The polarization curves, obtained for bare and graphene coated substrates in 0.1 M NaCl solution, showed a decrease in the corrosion current density and a shift in the corrosion potential in the positive direction, thereby confirming a decrease in the corrosion rate (Kirkland et al 2012;Lih et al 2012).…”

“…In most of the work reported so far where graphene has been primarily tested for its anti-corrosion properties on Cu and Ni, the corrosion of the bare substrate was much lower than mild steel in the environments tested. Graphene layers for anti-corrosion purposes have been grown on Ni and Cu substrates mostly by CVD methods (Prasai et al 2012;Kirkland et al 2012;Nayak et al 2013;Singh et al 2013;Mišković-Stanković et al 2014;Liang et al 2014). Presence of graphene coatings lowered corrosion rates between 16 and 90 % (Prasai et al 2012;Kirkland et al 2012;Mišković-Stanković et al 2014).…”

“…These properties make graphene a potentially important candidate for anticorrosion films. Various researchers have studied the efficacy of graphene layers in reducing corrosion of copper and nickel substrates (Chen et al 2011;Prasai et al 2012;Hu et al 2014;Bunch et al 2008;Kirkland et al 2012;Nayak et al 2013;Singh et al 2013). Graphene layers have also been grown on Aluminum (Mišković-Stanković et al 2014) and stainless steel substrates (Pu et al 2015).…”

“…(Chen et al 2011;Prasai et al 2012;Hu et al 2014;Bunch et al 2008;Kirkland et al 2012;Nayak et al 2013;Singh et al 2013;Mišković-Stanković et al 2014;Pu et al 2015) of which CVD method has emerged as the most favored one for generating graphene films. CVD synthesized graphene films have been deposited on Cu and Ni substrates and also have been transferred on to other surfaces (Prasai et al 2012;Kirkland et al 2012;Nayak et al 2013;Singh et al 2013;Mišković-Stanković et al 2014). Elaborate and expensive experimental arrangements and precise control of temperature, concentration of precursor material and time of exposure are required to generate good quality films using CVD.…”