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Properties of Ti-based PbO2 Electrocatalytic Anodes with an Arc Sprayed ZrN-interlayer |
TANG Changbin1(), WANG Fei1, NIU Hao1, YU Lihua1, XUE Juanqin1, YIN Xiangyang2 |
1.School of Metallurgy and Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China 2.Shaanxi Xinxing Thermal Spraying Technology Co. Ltd. , Xi'an 710000, China |
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Cite this article:
TANG Changbin, WANG Fei, NIU Hao, YU Lihua, XUE Juanqin, YIN Xiangyang. Properties of Ti-based PbO2 Electrocatalytic Anodes with an Arc Sprayed ZrN-interlayer. Chinese Journal of Materials Research, 2020, 34(7): 527-534.
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Abstract The Ti/ZrN/PbO2 electrodes were prepared via an arc spraying ZrN-interlayer on the Ti-substrate and then followed by anodic electrodeposition of β-PbO2 surface coating. By taking the plain Ti/PbO2 electrode as comparison, the prepared electrodes were characterized in terms of microstructure, surface roughness, coating adhesion, accelerated life assessment, electrochemical performance and electro-oxidation of phenol. The results show that the accelerated life-time for Ti/ZrN/PbO2 anodes was obviously prolonged to 8 times of that for the plain Ti/PbO2 electrode. Meanwhile, the electrocatalytic degradation activity of this anode for the organic pollutants was enhanced. This is directly related to the improvement of the conductivity of the electrode brought by the arc sprayed ZrN interlayer and which then enables the layer of electrodeposited PbO2 to be significantly refined and thicker with much flat surface and better adhesive to the substrate, as well as more active sites caused by the rough surface characteristics of this arc spraying intermediate layer.
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Received: 10 December 2019
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Fund: National Natural Science Foundation of China(51874227);the Natural Science Basic Research Plan of Shaanxi Province(2018JM5131);the Natural Science Basic Research Plan of Shaanxi Province(2018JM5139) |
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