Abstract
Mesoporous and highly crystalline TiO2 (anatase)/carbon composites with large (>5 nm) and uniform pores were synthesized using PI-b-PEO block copolymers as structure directing agents. Pore sizes could be tuned by utilizing block copolymers with different molecular weights. The resulting mesoporous TiO2/carbon was successfully used as an anode material for Li ion batteries. Without addition of conducting aid (Super P), the electrode showed high capacity during the first insertion/desertion cycle due to carbon wiring inside the walls of mesoporous TiO2/carbon. The electrode further showed stable cycle performance up to 50 cycles and the specific charge capacity at 30 C was 38 mA h (g of TiO2) -1, which indicates CCM-TiO2/carbon can be used as a material for high rate use.
Original language | English |
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Pages (from-to) | 383-390 |
Number of pages | 8 |
Journal | Macromolecular Chemistry and Physics |
Volume | 212 |
Issue number | 4 |
DOIs | |
Publication status | Published - 2011 Feb 15 |
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics
- Physical and Theoretical Chemistry
- Organic Chemistry
- Polymers and Plastics
- Materials Chemistry