Polypyrrole film on 55% Al–Zn-coated steel for corrosion prevention
► A conducting polypyrrole (PPy) layer was anodically formed to protect Al–Zn alloy coating. ► The alloy−coated steel can be passivated by the oxidative PPy layer. ► No corrosion products were observed during 60 h immersion in aqueous NaCl solution. For corrosion protection of 55% Al–Zn-coated steel...
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| Veröffentlicht in: | Corrosion science 2012-03, Vol.56, p.67-77 |
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| container_title | Corrosion science |
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| creator | Ryu, Haku Sheng, Nan Ohtsuka, Toshiaki Fujita, Sakae Kajiyama, Hiroshi |
| description | ► A conducting polypyrrole (PPy) layer was anodically formed to protect Al–Zn alloy coating. ► The alloy−coated steel can be passivated by the oxidative PPy layer. ► No corrosion products were observed during 60 h immersion in aqueous NaCl solution.
For corrosion protection of 55% Al–Zn-coated steel, a dense polypyrrole (PPy) film is electrochemically formed on 55% Al–Zn-coated steel in an acidic tartrate solution under constant current control. The film potentially consists of an inner layer of aluminium and/or zinc oxide and an outer PPy layer doped with tartrate anions. The PPy layer can maintain passivation of 55% Al–Zn-coated steel in a 3.5
wt.% NaCl aqueous solution and protected the steel for several hours. The doping of molybdate anions into the PPy–tartrate film greatly improved the film’s protective properties. |
| doi_str_mv | 10.1016/j.corsci.2011.11.011 |
| format | Article |
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For corrosion protection of 55% Al–Zn-coated steel, a dense polypyrrole (PPy) film is electrochemically formed on 55% Al–Zn-coated steel in an acidic tartrate solution under constant current control. The film potentially consists of an inner layer of aluminium and/or zinc oxide and an outer PPy layer doped with tartrate anions. The PPy layer can maintain passivation of 55% Al–Zn-coated steel in a 3.5
wt.% NaCl aqueous solution and protected the steel for several hours. The doping of molybdate anions into the PPy–tartrate film greatly improved the film’s protective properties.</description><subject>A. Aluminum</subject><subject>A. Zinc</subject><subject>Aluminium</subject><subject>Aluminum</subject><subject>Anions</subject><subject>Applied sciences</subject><subject>B. EIS</subject><subject>B. IR spectroscopy</subject><subject>B. Raman spectroscopy</subject><subject>C. Polymer coating</subject><subject>Corrosion</subject><subject>Corrosion environments</subject><subject>Corrosion prevention</subject><subject>Exact sciences and technology</subject><subject>Metals. Metallurgy</subject><subject>Molybdates</subject><subject>Nonmetallic coatings</subject><subject>Polypyrroles</subject><subject>Production techniques</subject><subject>Protective coatings</subject><subject>Steels</subject><subject>Surface treatment</subject><issn>0010-938X</issn><issn>1879-0496</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNp9kM1KAzEUhYMoWKtv4GI2BTdTk5nMTzZCKfUHCrpQEDchvXMHUtJJTaaF7nwH39An8ZYWl8KFk8V3z8k9jF0LPhZclLfLMfgQwY4zLsSYhuSEDURdqZRLVZ6yAeeCpyqv38_ZRYxLzjmxfMBmL97t1rsQvMOktW6V-C4pilEycT9f3x9dCt702CSxR3RJ60NCUcFHS9g64Ba7np6X7Kw1LuLVUYfs7X72On1M588PT9PJPAVZqD6tqhIAQeWFaheLSpZVLppSFlgbDlXTlmC4lLymm6qMhOdSZgKNykGaqoB8yG4OvuvgPzcYe72yEdA506HfRE1t8FplZEGoPKBAv40BW70OdmXCjqA9V-qlPrSm961pGhJaGx0TTATj2mA6sPFvNyvKXBRCEXd34JDO3VoMmpywA2xsQOh14-3_Qb85rIPy</recordid><startdate>20120301</startdate><enddate>20120301</enddate><creator>Ryu, Haku</creator><creator>Sheng, Nan</creator><creator>Ohtsuka, Toshiaki</creator><creator>Fujita, Sakae</creator><creator>Kajiyama, Hiroshi</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QF</scope><scope>7SE</scope><scope>8BQ</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope><scope>JG9</scope></search><sort><creationdate>20120301</creationdate><title>Polypyrrole film on 55% Al–Zn-coated steel for corrosion prevention</title><author>Ryu, Haku ; Sheng, Nan ; Ohtsuka, Toshiaki ; Fujita, Sakae ; Kajiyama, Hiroshi</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c459t-776ccec9359fbb746731d645e8a0c7df6ca0440801672080034421ea93c4a75c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>A. Aluminum</topic><topic>A. Zinc</topic><topic>Aluminium</topic><topic>Aluminum</topic><topic>Anions</topic><topic>Applied sciences</topic><topic>B. EIS</topic><topic>B. IR spectroscopy</topic><topic>B. Raman spectroscopy</topic><topic>C. Polymer coating</topic><topic>Corrosion</topic><topic>Corrosion environments</topic><topic>Corrosion prevention</topic><topic>Exact sciences and technology</topic><topic>Metals. Metallurgy</topic><topic>Molybdates</topic><topic>Nonmetallic coatings</topic><topic>Polypyrroles</topic><topic>Production techniques</topic><topic>Protective coatings</topic><topic>Steels</topic><topic>Surface treatment</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ryu, Haku</creatorcontrib><creatorcontrib>Sheng, Nan</creatorcontrib><creatorcontrib>Ohtsuka, Toshiaki</creatorcontrib><creatorcontrib>Fujita, Sakae</creatorcontrib><creatorcontrib>Kajiyama, Hiroshi</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Aluminium Industry Abstracts</collection><collection>Corrosion Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><jtitle>Corrosion science</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ryu, Haku</au><au>Sheng, Nan</au><au>Ohtsuka, Toshiaki</au><au>Fujita, Sakae</au><au>Kajiyama, Hiroshi</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Polypyrrole film on 55% Al–Zn-coated steel for corrosion prevention</atitle><jtitle>Corrosion science</jtitle><date>2012-03-01</date><risdate>2012</risdate><volume>56</volume><spage>67</spage><epage>77</epage><pages>67-77</pages><issn>0010-938X</issn><eissn>1879-0496</eissn><coden>CRRSAA</coden><abstract>► A conducting polypyrrole (PPy) layer was anodically formed to protect Al–Zn alloy coating. ► The alloy−coated steel can be passivated by the oxidative PPy layer. ► No corrosion products were observed during 60 h immersion in aqueous NaCl solution.
For corrosion protection of 55% Al–Zn-coated steel, a dense polypyrrole (PPy) film is electrochemically formed on 55% Al–Zn-coated steel in an acidic tartrate solution under constant current control. The film potentially consists of an inner layer of aluminium and/or zinc oxide and an outer PPy layer doped with tartrate anions. The PPy layer can maintain passivation of 55% Al–Zn-coated steel in a 3.5
wt.% NaCl aqueous solution and protected the steel for several hours. The doping of molybdate anions into the PPy–tartrate film greatly improved the film’s protective properties.</abstract><cop>Kidlington</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.corsci.2011.11.011</doi><tpages>11</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | Corrosion science, 2012-03, Vol.56, p.67-77 |
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| language | eng |
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| source | ScienceDirect Journals (5 years ago - present) |
| subjects | A. Aluminum A. Zinc Aluminium Aluminum Anions Applied sciences B. EIS B. IR spectroscopy B. Raman spectroscopy C. Polymer coating Corrosion Corrosion environments Corrosion prevention Exact sciences and technology Metals. Metallurgy Molybdates Nonmetallic coatings Polypyrroles Production techniques Protective coatings Steels Surface treatment |
| title | Polypyrrole film on 55% Al–Zn-coated steel for corrosion prevention |
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