Corrosion of conductive polypyrrole: Effects of possibly formed galvanic cells
Source abstract
Abstract
Abstract Some galvanic couples were designed with PPy films to simulate possibly formed corrosion cells on PPy. Their effects on the corrosion of PPy were investigated using electrochemical methods and XPS analysis. The results indicate that the PPy redox state difference cell just occurs in the initial corrosion period and can not be sustained on PPy. The H + ion and electrolyte concentration difference cells can be sustained on PPy but do not influence the corrosion of PPy. The oxygen concentration difference cell can also be sustained on PPy and severely accelerates the corrosion of PPy. The mechanism involved is discussed.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Conducting polymers and applications · Analytical Chemistry and Sensors · Fuel Cells and Related Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (48)
Show source-provided references
1. Characterization of the movement of polypyrrole dodecylbenzenesulfonate perchlorate/tape artificial muscles. Faradaic control of reactive artificial molecular motors and muscles10.1016/j.electacta.2010.11.058 ↗
2. Two step novel chemical synthesis of polypyrrole nanoplates for supercapacitor application10.1016/j.jallcom.2011.03.080 ↗
3. Synthesis of ultra thin polypyrrole nanosheets for chemicalsensor applications10.1016/j.polymer.2010.12.021 ↗
4. The use of polypyrrole modified carbon-supported cobalt hydroxide as cathode and anode catalysts for the direct borohydride fuel cell10.1016/j.jpowsour.2009.03.006 ↗
5. Electrodeposition of polypyrrole on 316L stainless steel forcorrosion prevention10.1016/j.corsci.2010.09.021 ↗
6. A polypyrrole-based microchip for controlled drug release10.1016/j.electacta.2009.08.049 ↗
7. Corrosion protection of iron by polypyrrole modified by copper using the cementation process10.1016/S0010-938X(03)00043-X ↗
8. Pulse polymerized polypyrrole electrodes for high energy density electrochemical supercapacitor10.1016/j.elecom.2007.12.004 ↗
9. Stability and degradation of conducting polymers in electrochemical systems10.1016/0379-6779(94)90155-4 ↗
10. Some features of the overoxidation of polypyrrole synthesized on austenitic stainless steel electrodes in aqueous nitrate solutions10.1016/j.surfcoat.2004.03.024 ↗
11. http://www.efcweb.org/Working+Parties/WP+19.html (19.09.11).
12. Thermal stability of polypyrrole prepared from a ternary eutectic melt10.1016/j.matchemphys.2004.12.025 ↗
13. Polypyrrole doped with fluro-metal composites: thermal stability and structural properties10.1016/S0379-6779(99)00140-X ↗
14. On the ozone degradation of polypyrrole10.1016/S0141-3910(03)00204-0 ↗
15. On the improvement of stability of polypyrrole films in aqueous solutions10.1016/j.synthmet.2007.05.006 ↗
16. Redox behavior and stability of polypyrrole film in sulfuric acid10.1016/j.synthmet.2006.06.023 ↗
17. A study of the degradation and stability of polypyrrole by inverse gas chromatography, X-ray photoelectron spectroscopy, and conductivity measurements10.1016/j.synthmet.2004.03.015 ↗
18. Nanoscale degradation of polypyrrole films under oxidative stress: an atomic force microscopy study and review10.1016/j.polymdegradstab.2008.01.009 ↗
19. Infrared and Raman spectroscopic studies of the electrochemical oxidative degradation of polypyrrole10.1016/S0379-6779(98)00034-4 ↗
20. Mechanism of conductivity decay of polypyrrole exposed to water and enhancement of conductivity stability of copper(I)-modified polypyrrole10.1016/S0022-0728(00)00510-6 ↗
21. Electrochemical overoxidation of conducting polypyrrole nitrate film in aqueous solutions10.1016/S0013-4686(99)00392-8 ↗
22. Direct microcalorimetric measurement of doping and overoxidation process in polypyrrole10.1016/0013-4686(96)00162-4 ↗
23. In situ FTIR study of redox and overoxidation processes in polypyrrole films10.1016/S0022-0728(00)00194-7 ↗
24. Transition of polypyrrole from electroactive to electroinactive state investigated by use of in situ FTIR spectroscopy10.1016/S0013-4686(96)00429-X ↗
25. Structural and mechanical degradation of polypyrrole films due to aqueous media and heat treatment and the subsequent redoping characteristics10.1002/(SICI)1097-4628(19970418)64:3<519::AID-APP8>3.0.CO;2-N ↗
26. Wallace · 2009
27. Electrocatalysis at conducting polymers10.1016/S0379-6779(99)00170-8 ↗
28. Catalysis of quinone-hydroquinone redox reactions at polypyrrole benzenesulofnate-coated platinum-electrodes10.1016/0022-0728(87)88004-X ↗
29. Elecrtocatalytic properties of polypyrrole in amperometric electrodes10.1016/0956-5663(91)87023-5 ↗
30. Role of catalysts on electrode activity in oxygen diuffsion hybrid polymer electrode10.1295/polymj.23.37 ↗
31. Electrochemistry of quinoid dopants in conducting polymers10.1016/0379-6779(89)90791-1 ↗
32. Corrosion of conductive polypyrrole: effects of environmental factors, electrochemical stimulation, and doping anions10.1016/j.corsci.2012.04.013 ↗
33. Corrosion of conductive polypyrrole: effects of continuous cathodic and anodic polarisation10.1016/j.corsci.2013.01.006 ↗
34. A study on the initiation of pitting corrosion in carbon steel in chloride-containing media using scanning electrochemical probes10.1016/j.electacta.2010.06.024 ↗
35. Stability of conducting polyester/polypyrrole fabrics in different pH solutions: chemical and electrochemical characterization10.1016/j.polymdegradstab.2010.07.028 ↗
36. Characterization of polyaniline–polypyrrole composite coatings on low carbon steel: a XPS and infrared spectroscopy study10.1016/S0169-4332(03)00579-8 ↗
37. Effect of electrolyte solvent on the morphology of polypyrrole films: application to the use of polypyrrole in pH sensors10.1016/j.synthmet.2008.03.010 ↗
38. A novel pH sensor based on hydroquinone monosulfonate-doped conducting polypyrrole10.1016/j.snb.2008.09.007 ↗
39. Protonation and deprotonation of polypyrrole chain in aqueous solutions10.1016/0379-6779(91)91845-2 ↗
40. The non-metallic character of solvated conducting polymers10.1016/0022-0728(92)85021-T ↗
41. Studies on spontaneous charging/discharging processes of polypyrrole in aqueous electrolyte solutions10.1002/1521-4109(200105)13:7<567::AID-ELAN567>3.0.CO;2-A ↗
42. Mechanism of ionic and redox sensitivity of p-type conducting polymers Part 1. Theory10.1016/0022-0728(93)03080-9 ↗
43. Mechanism of ionic and redox sensitivity of p-type conducting polymers Part 2. Experimental study of polypyrrole10.1016/0022-0728(93)03081-Y ↗
44. On the improvement of stability of polypyrrole films in aqueous solutions10.1016/j.synthmet.2007.05.006 ↗
45. Vetter · 1967
46. On the nature of redox processes in the cyclic voltammetry of polypyrrole nitrate in aqueous solutions10.1016/0022-0728(93)80029-H ↗
47. Electrochemically induced substitution of polythiophenes and polypyrrole10.1021/cm950416p ↗
48. Infrared and Raman spectroscopic studies of the electrochemical oxidative degradation of polypyrrole10.1016/S0379-6779(98)00034-4 ↗