Electrochemical deposition of nickel graphene composite coatings: effect of deposition temperature on its surface morphology and corrosion resistance

Abstract

The present work describes the fabrication of Ni–graphene composite coatings on carbon steel at different deposition temperatures (15 °C, 30 °C, 45 °C and 60 °C, respectively) by an electrochemical codeposition method.

Corrosion Resistance of Graphene oxide/Silver Coatings on Ni–Ti alloy and Expression of IL-6 and IL-8 in Human Oral Fibroblasts

“…Chembat et al 30 found the R a of the bare NiTi alloy around 1.7 ± 0.1 nm. Similarly, Abdul et al 31 studied on the graphene composite coatings on carbon steel and found the surface roughness (Ra) were 34 to 150 nm according to deposition temperature where they measured using AFM. The difference in R a values could be different due to the difference in the composition.…”

Photophysical and Electrochemical Studies of Anchored Chromium (III) Complex on Reduced Graphene Oxide via Diazonium Chemistry

“…The as prepared rGO shows a broad 2θ peak at 24.29 in (002) diffraction plane associated with reduced graphene oxide (rGO) of an interplanar distance 0.36 nm calculated by the Bragg's equation. This is due to the introduction of oxygenic functional groups and trapped water molecules between the graphite layers . During the anchoring of TMSPA, PAS and metal complex on the rGO surface, the diffraction peak of rGO do not disappear, indicating the structure of rGO is retained during the functionalization.…”

The impact of cationic surfactants on the electrodeposition of Nickel/Graphene nano-sheet composite coatings on brass

“…EIS tests are performed in 0.6M NaCl solution to study the anti-corrosion properties of the composite coatings obtained at different immersion times [12,28]. Figure 2 a-c. exemplified the Bode, phase angle and Nyquist (in situ) plots of substrate and composite coatings prepared at 30 mA cm -2 without and with 0.2g L -1 at different immersion times.…”

“…Meanwhile, the obtained EIS spectra of coatings deposited in absence of GNS showed narrow semicircles. In fact, the diameter of the semicircles decides the anti-corrosion property of coatings and the larger diameter ensures the better corrosion resistance [12]. Potentiodynamic polarization data (Table 2 a&b, Fig.…”

“…may be the uniformly distribution of GNS lamina which fills the micro punctures an incisions in the Ni matrix, homogeneous dispersion of GNS during the deposition process and inert physical hindrance feature of GNS are responsible for improved C.R. [12,28].…”