| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1441801 | Synthetic Metals | 2013 | 6 Pages |
Polypyrrole/ZnO (PPy/ZnO) nanocomposites coating with different feeding ratios of ZnO (0–30 wt%) were prepared on nickel sheet using oxalic acid and dodecylebenzensulfonic acid (DBSA) as electrolyte by electrochemical methods. It was found that surface morphology of PPy coatings showed typical cauliflower-like structure and ZnO nanoparticles were randomly distributed among these structures. Several elements were detected including C, O, S and Zn in PPy/ZnO nanocomposites coating, and the content of ZnO gradually increased with the increase of feeding ratio of ZnO. A peak in XRD patterns was observed around 2θ of 18.8° related to PPy structure, and the peaks at 1544 cm−1 and 579 cm−1 in FTIR spectra were assigned to stretching vibration of NH bond and ZnO bond, respectively. It was also found that the PPy/ZnO nanocomposites coating had better conductivity and charge storage capability than those of pure PPy. Besides, the corrosion current value of PPy/ZnO nanocomposites coating showed a better corrosion protection.
► Nanocomposites consisting of ZnO nanoparticals and PPy films were synthesized. ► The content of ZnO in PPy/ZnO nanocomposites increased with ZnO feeding ratio. ► The PPy/ZnO nanocomposites show better charge-carrying capacity. ► The PPy/ZnO nanocomposites had better conductivity than that of pure PPy. ► The PPy/ZnO nanocomposites show higher corrosion protection properties.
