Synthesis of Cr2O3/GeO2/C Cathode Materials
Corresponding Organization : Shanghai University
Other organizations : Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai Dianji University
Variable analysis
- Molar ratios of Cr2O3, GeO2, and graphite powders (1:1:1, 1:2:1, 1:3:1, and 1:4:1)
- Polyvinyl butyral (PVB) content (10 wt%)
- Characteristics of the obtained Cr2O3/GeO2/C cathode system
- Ball-milling speed (300 r/min)
- Ball-milling duration (5 h)
- Pressure for disc fabrication (10 MPa)
- Diameter of Cr2O3/GeO2/C disc (10 mm)
- Nickel foam wrapping
- Diameter of Mo wire (2 mm)
- Diameter of graphite rod (5 mm)
- Purity of graphite rod (99.999%)
- CaCl2 and NaCl electrolyte composition (1:1 M ratio)
- Electrolysis furnace temperature (700°C)
- Heating rate (5°C/min)
- Pre-electrolysis voltage (2.0 V)
- Pre-electrolysis duration (2-5 h)
- Electrolysis voltage (3.0 V)
- Washing with deionized water
- Drying temperature (100°C)
- Drying method (vacuum drying oven)
- Positive, Pre-electrolysis between two graphite rods to eliminate residual impurities in molten salts
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