Selvaraj, C and Munichandraiah, N and Scanlon, LG (2012) Dilithium phthalocyanine as a catalyst for oxygen reduction in non-aqueous Li-O-2 cells. In: JOURNAL OF PORPHYRINS AND PHTHALOCYANINES, 16 (3). pp. 255-259.
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The electrochemical performance of Li-O-2 cells depends mainly on the kinetics of the cathode reaction, namely, oxygen reduction reaction in non-aqueous electrolytes. The catalyst plays an important role on the kinetics of the reaction. In the present work, dilithium phthalocyanine is used as the catalyst in the cathode of Li-O-2 cells. Dual-layer O-2 electrodes are fabricated employing a high surface area microporous carbon with Ni gauge current collector present between the two layers. Discharge capacity of Li-O-2 cell measured at 0.2 mA.cm(-2) is about 30 mAh.cm(-2). Phthalocyanine ring is considered to interact with O-2 producing Li2Pc+delta - O-2(-delta) as a reaction intermediate, which facilitates the electron-transfer reaction.
| Item Type: | Journal Article |
|---|---|
| Publication: | JOURNAL OF PORPHYRINS AND PHTHALOCYANINES |
| Publisher: | WORLD SCI PUBL CO INC |
| Keywords: | dilithium phthalocyanine;catalyst;oxygen reduction;Li-O-2 cells |
| Department/Centre: | Division of Chemical Sciences > Inorganic & Physical Chemistry |
| Date Deposited: | 26 Jun 2012 10:29 |
| Last Modified: | 26 Jun 2012 10:29 |
| URI: | http://eprints.iisc.ac.in/id/eprint/44748 |
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