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Citation: SHI Yan-Hua, MENG Hui-Min, SUN Dong-Bai, YU Hong-Ying, FU Hua-Rong. Manganese Oxide Coating Electrodes Prepared by Pulse Anodic Electrodeposition[J]. Acta Physico-Chimica Sinica, ;2008, 24(07): 1199-1206. doi: 10.3866/PKU.WHXB20080714 shu

Manganese Oxide Coating Electrodes Prepared by Pulse Anodic Electrodeposition

1.
Corrosion and Protection Center, University of Science and Technology Beijing, Beijing 100083, P. R. China; Beijing Key Laboratory for Corrosion, Erosion and Surface Technology, Beijing 100083, P. R. China

Received Date: 7 January 2008
Available Online: 4 May 2008

Doped manganese oxide coating electrodes were prepared by pulse anodic electrodeposition. Their morphology, phase structure and electrochemical properties were studied by field emitted scanning electron microscopy (FESEM), scanning electron microscopy (SEM), X-ray diffraction (XRD), and electrochemical methods. The results showed that electrodes with high electrocatalytic activity and stability could be produced by adjusting the pulse parameter. The deposition rate was high when pulse frequency (f) was 90 Hz and the pulse duty factor was 1:2. The oxide has a network structure mixed by nanowires and spherical nanoparticles, which can effectively improve the electrocatalytic activity and service life of these electrodes. The accelerated life of electrode was 1635 h, which was 55.3% higher than that of direct current electrodeposition.
- Pulse anodic electrolysis deposition; Oxide coating; Nanostructure; Stability; Electrocatalytic activity
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