Ni-CeO<sub>2</sub>黑色防护镀层的光助动电位沉积及光热性能

doi:10.11896/cldb.23030220

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Abstract Nickel coatings, as important engineering materials, have been widely used in many industrial fields. Ceria, as an important rare earth oxide, has also attracted great attention of scholars. In this work, Ni-CeO₂ composite black coatings were prepared by photo-assisted potentiodynamic deposition. The effects of light, deposition potential range and temperature on the structure, composition and properties of the coatings were studied. The coatings prepared under different conditions were characterized by cyclic voltammetry, Tafel polarization curves, contact angle measurement, stylus profiler, ultraviolet-visible-near-infrared spectrophotometer, dual-band emittance measuring instrument, scanning electron microscopy and energy dispersive spectrometry. The results show that the Ni-CeO₂ composite black coating prepared at the deposition potential range of 0—-1.5 V, the temperature of 50 ℃ and with the photo illumination has the best comprehensive properties: the corrosion current density of 9.642 × 10^-6 A·cm^-2, water contact angle of 125.95°, the absorptivity above 94% and the emissivity of 0.592. When the deposition potential range is 0—-3.5 V, the coating has the highest emissivity of 0.757. Photo illumination not only affects the deposition rate of CeO₂, but also significantly increases the deposition rate of Ni. This study provides an idea to prepare black composite coatings with high absorptivity and emissivity, which can be expected to be applied in photothermal conversion and optical instruments.

Key words： potentiodynamic deposition nickel-ceria composite black coating deposition potential deposition temperature photo illumination

Published: 25 July 2024 Online: 2024-08-12

CLC number:

TB331

Fund:National Natural Science Foundation of China (52001300,52171083).

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	Articles by authors
	WU Shiwei
	YANG Yumeng
	DUAN Xuejia
	LAN Shifeng
	LI Shuming
	ZHU Benfeng
	WEI Guoying

Cite this article:

WU Shiwei,YANG Yumeng,DUAN Xuejia, et al. Photo-Assisted Potentiodynamic Deposition and Photothermal Properties of Ni-CeO₂ Black Protective Coatings[J]. Materials Reports, 2024, 38(14): 23030220-9.

URL:

http://www.mater-rep.com/EN/10.11896/cldb.23030220 OR http://www.mater-rep.com/EN/Y2024/V38/I14/23030220

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