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Electrochemical Multi-Coloration of Molybdenum Oxide Bronzes
- Issue Date
- 20-8월-2013
- Publisher
- KOREAN CHEMICAL SOC
- Keywords
- Mo oxide bronze; Bronzes; Electrochemistry; EQCM
- Citation
- BULLETIN OF THE KOREAN CHEMICAL SOCIETY, v.34, no.8, pp.2348 - 2352
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- BULLETIN OF THE KOREAN CHEMICAL SOCIETY
- Volume
- 34
- Number
- 8
- Start Page
- 2348
- End Page
- 2352
- ISSN
- 0253-2964
- Abstract
- We report a simple electrochemical approach in fabricating multiple colored molybdenum (Mo) oxide bronzes on the surface of a Mo-quartz electrode. A three step electrochemical batch process consisting of linear sweep voltammetry and anodic oxidation followed by cathodic reduction in neutral K2SO4 electrolyte at different end potentials, viz. -0.62, -0.80 and -1.60 V (vs. Hg/HgSO4) yielded red, blue and yellow colored bronzes. The samples produced were analyzed by XRD, EDS, and SIMS. The color variation was suggested to be associated with the cations intercalation into the oxide formed and the simultaneous structural changes that occurred during the cathodic reduction in neutral aqueous medium.
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