| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1469617 | Corrosion Science | 2012 | 7 Pages |
We propose the synthesis and characterization of poly(ethylenedioxythiophene) nanospheres (PEDOT-NSP) coated onto a multi-walled carbon nanotube (MWNT) (PEDOT-NSP/MWNT) and the application of the resultant materials as a corrosion inhibitor for aluminum in LiPF6. Doping PEDOT-NSP with negatively charged MWNT minimized the anion exchange property of PEDOT, impeding the penetration of pit-causing PF6- anions. The COOH groups of MWNT, which remained intact in PEDOT-NSP/MWNT, also blocked the access of anions to the aluminum by electrostatic repulsion. This synergistic effect allowed PEDOT-NSP/MWNT to protect the aluminum more effectively compared with PEDOT and PEDOT-wrapped MWNT with a coaxial structure (PEDOT-COX/MWNT).
► PEDOT nanospheres (PEDOT-NSP) coated MWNT (PEDOT-NSP/MWNT) for anticorrosion of Al. ► Comparison with PEDOT-wrapped MWNT (PEDOT-COX/MWNT) and PEDOT. ► Superior corrosion inhibition of PEDOT-NSP/MWNT to PEDOT-COX/MWNT and PEDOT. ► Prevention of PF6- access to aluminum by synergistic effect of PEDOT-NSP/MWNT. ► Cooperative role of PEDOT-NSP and COOH groups of MWNT in PEDOT-NSP/MWNT.
