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首页> 外文期刊>International Journal of Electrochemical Science >Preparation and Properties of Ni-W-rGO Composite Coatings
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Preparation and Properties of Ni-W-rGO Composite Coatings

机译：Ni-W-rGO复合镀层的制备及性能

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Graphene oxide (GO) was prepared by a modified Hummers method. Ni-W-rGO composite coatingswere synthesized by pulsed electrodeposition on an N80 steel plate. The GO specimens werecharacterized by Raman spectroscopy, Fourier-transform infrared spectroscopy, and X-ray diffraction.Microstructures of the Ni-W-rGO composite coatings were characterized by scanning electronmicroscopy equipped with energy dispersion spectroscopy analysis. The microhardness of all coatingswere evaluated with a microhardness tester. The corrosion behavior of the Ni-W-rGO compositecoatings was investigated by potentiodynamic polarization and electrochemical impedance spectroscopyin 3.5 wt% NaCl solution. The results showed that GO had been reduced to rGO on the cathode, forminga composite coating with nickel and tungsten co-deposits on the N80 plate. The coating was denser dueto improved surface morphology, and GO markedly improved its microhardness and corrosionresistance. The optimum GO concentration was 0.6 g/L.
机译：通过改进的Hummers方法制备氧化石墨烯（GO）。通过在N80钢板上脉冲电沉积合成Ni-W-rGO复合涂层。通过拉曼光谱，傅里叶变换红外光谱和X射线衍射对GO样品进行表征。用显微硬度测试仪评估所有涂层的显微硬度。通过电位动力学极化和电化学阻抗谱研究了Ni-W-rGO复合涂层在3.5 wt％NaCl溶液中的腐蚀行为。结果表明，GO在阴极上已还原为rGO，在N80板上形成了镍和钨共沉积的复合涂层。由于改善了表面形态，涂层更致密，而GO显着提高了其显微硬度和耐蚀性。最佳GO浓度为0.6 g / L。

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