脉冲电位电沉积法制备还原性氧化石墨烯/锌纳米复合镀层及其耐蚀性

IF 1.5 Q4 ELECTROCHEMISTRY

International Journal of Corrosion Pub Date : 2018-04-24 DOI:10.1155/2018/3028693

S. Asl, A. Afshar, Y. Yaghoubinezhad

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引用次数: 19

摘要

在含有[GO−/Zn2+]δ+纳米团簇的一锅水混合物中，直接控制脉冲电位共电沉积还原氧化石墨烯/锌(rGO-Zn)纳米复合涂层在钢基体上。采用改进的Hummer方法合成氧化石墨烯纳米片，同时在溶液中生成Zn阳离子并采用阳极溶解技术沉积在氧化石墨烯纳米片上。最终，纳米团簇通过电化学过程还原为氧化石墨烯-锌薄膜。表征了薄膜的化学成分、表面形貌和耐腐蚀性。结果表明，rGO-Zn涂层的耐蚀性是裸钢的10倍左右。

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An Electrochemical Synthesis of Reduced Graphene Oxide/Zinc Nanocomposite Coating through Pulse-Potential Electrodeposition Technique and the Consequent Corrosion Resistance

Pulse-potential coelectrodeposition of reduced graphene oxide/zinc (rGO-Zn) nanocomposite coating is directly controlled upon a steel substrate from a one-pot aqueous mixture containing [GO−/Zn2+]δ+ nanoclusters. GO nanosheets are synthesized by modified Hummer’s approach while Zn cations are produced in the solution and deposited on GO nanosheets using anodic dissolution technique. Eventually, nanoclusters are reduced to rGO-Zn film through an electrochemical process. Chemical composition, surface morphology, and corrosion resistance of the thin film are characterized. Results show that the corrosion resistance of rGO-Zn coating is approximately 10 times more than the bare steel.

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来源期刊

International Journal of Corrosion ELECTROCHEMISTRY-

CiteScore

5.70

自引率

0.00%

发文量

审稿时长

14 weeks