In this paper, a protective Ni-Co-TiO 2 composite coating was prepared on the sintered NdFeB magnet by direct current electrodeposition. The surface morphologies, microstructure, and chemical composition of the composite coating were studied using scanning electron microscope (SEM), X-ray diffractio
Energy storage ability and anti-corrosion protection properties of TiO2–SnO2 system
✍ Scribed by M.-J. Zhou; Z.-O. Zeng; L. Zhong
- Publisher
- John Wiley and Sons
- Year
- 2009
- Tongue
- German
- Weight
- 308 KB
- Volume
- 61
- Category
- Article
- ISSN
- 0947-5117
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✦ Synopsis
coatings were prepared on type 304 stainless steel by sol-gel method, respectively. TiO 2 /SnO 2 coating is compared with TiO 2 -SnO 2 coating in terms of energy storage ability and anti-corrosion property. The two coatings can be charged with reductive energy under UV irradiation in 3 wt% aqueous NaCl. The self-discharging time of the TiO 2 /SnO 2 coating is slower than that of the TiO 2 -SnO 2 coating. The slow discharging may be suitable for an anti-corrosion application for metal. In the case where TiO 2 /SnO 2 coating electrode is electrochemically charged at À0.38 V (vs. SCE) for 1 h, it can maintain a good cathodic protection for type 304 stainless steel for 7 h in the dark, while the TiO 2 -SnO 2 coating electrode can only maintain a good cathode protection for 0.5 h in the dark.
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