Synthesis, characterization and application of glucosyloxyethyl acrylate graft chitosan against pipeline steel corrosion

Anticorrosion allyl sulfonate graft chitosan/graphene oxide nanocomposite material

“…These curves are single-loop capacitive semicircles, and this could be linked with reactions associated with charge transfers. 9 Wider curves are consistent with concentrations of nanocomposites that offered the most inhibition against steel corrosion, and this could be attributed to the formation of passive inhibitor films on these metallic surfaces. [9][10][11] This trend is also consistent with increase in charge transfer resistance (R ct ) with increasing nanocomposite concentrations; magnitude of R ct up to 61.4, 214.7, 290.0 and 361.4 Ω cm 2 were recorded for 0, 5, 15 and 25 ppm.…”

“…9 Wider curves are consistent with concentrations of nanocomposites that offered the most inhibition against steel corrosion, and this could be attributed to the formation of passive inhibitor films on these metallic surfaces. [9][10][11] This trend is also consistent with increase in charge transfer resistance (R ct ) with increasing nanocomposite concentrations; magnitude of R ct up to 61.4, 214.7, 290.0 and 361.4 Ω cm 2 were recorded for 0, 5, 15 and 25 ppm. These impedance curves were fitted into an appropriate circuit model (R soln (Q dl (R ct ))) and the aforementioned values of R ct as well as other electrochemical parameters were obtained as presented within the supporting information (Table 2).…”

“…Inherent oxidative volatile products from during the test were eliminated from the first N 2 flow rate. 9 The surface morphologies of both powders were also analyzed using a SEM at 1-kV acceleration voltage on precoated Au powder samples (10-nm; Quorum Q150T ES). Raman spectroscopic of the rGO nanosheet were also determined using Renishaw Raman InVia reflex microscope (Renishaw) using a 514 nm edge laser.…”

“…The surface morphology of CH flakes shows larger and agglomerated particles and less amorphous compared to that of CH(S) copolymer. 9 Prior to SEM imaging, these vacuum-dried powdery CH and CH(S) grains were simply placed on conducting tapes on SEM sample holders with no further treatments, except for thin film Au coating (10-nm; Quorum Q150T ES). The presented morphologies are consistent for dried samples.…”

3D‐printed surface‐modified aluminum nitride reinforced thermally conductive composites with enhanced thermal conductivity and mechanical strength

“…The XPS was analyzed to prove that this functional group, identified by FTIR, is chemically bound to the filler surface (Figure 2B,C). The C 1s and O 1s deconvolution peak of f‐AlN has binding energy peaks corresponding to C═O (or O═CO) and CO, and the presence of the SiOAl peak can be evidence of silane grafting 23,24 …”