Visualization of TiO2 Reduction Behavior in Molten Salt Electrolysis

An in situ observation technique of the TiO 2 interfacial behavior in molten LiCl-KCl electrolysis was developed. The variation of the thin TiO 2 electrode surface were tracked through the high-speed digital microscopy synchronized with the electrochemical measurement. Two characteristic interfacial...

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Veröffentlicht in:	Metallurgical and materials transactions. B, Process metallurgy and materials processing science Process metallurgy and materials processing science, 2020-02, Vol.51 (1), p.11-15
Hauptverfasser:	Natsui, Shungo, Sudo, Takuya, Shibuya, Ryota, Nogami, Hiroshi, Kikuchi, Tatsuya, Suzuki, Ryosuke O.
Format:	Artikel
Sprache:	eng
Schlagworte:	Behavior Characterization and Evaluation of Materials Chemistry and Materials Science Communication Electrodes Electrolysis Lithium chloride Materials Science Metallic Materials Molten salts Nanotechnology Oxide coatings Structural Materials Surfaces and Interfaces Thin Films Titanium dioxide Titanium oxides
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Beschreibung
Zusammenfassung:	An in situ observation technique of the TiO 2 interfacial behavior in molten LiCl-KCl electrolysis was developed. The variation of the thin TiO 2 electrode surface were tracked through the high-speed digital microscopy synchronized with the electrochemical measurement. Two characteristic interfacial behaviors were discovered: physical breakage of the titanium oxide and Li( l ) spreading on electrode surface. These electrochemically induced interfacial behaviors affect the current-time curves due to the heterogeneity of the titanium oxide film shape.
ISSN:	1073-5615 1543-1916
DOI:	10.1007/s11663-019-01733-7