Hierarchical NiCo2O4 nanorods as an efficient cathode catalyst for rechargeable non-aqueous Li–O2 batteries |
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| Affiliation: | 1. Centre for Clean Energy Technology, School of Chemistry and Forensic Science, University of Technology Sydney, Broadway, Sydney, NSW 2007, Australia;2. Electron Microscope Unit, The University of New South Wales, Sydney, NSW 2052, Australia;3. School of Materials Science and Engineering, Gyeongsang National University, 900 Gazwa-dong, Jinju, Gyeongnam 660-701, Republic of Korea;1. Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, 20133, Milano, Italy;2. Istituto Nazionale di Scienza e Tecnologia dei Materiali, Milan Unit, Via Golgi 19, 20133, Milano, Italy;1. Center for Fuel Cell Innovation, State Key Laboratory of Material Processing and Die & Mould Technology, School of Materials Science and Engineering, Huazhong University of Science & Technology, Wuhan 430074, China;2. Research Center for Engineering Technology of Polymeric Composites of Shanxi Province, School of Materials Science and Engineering, North University of China, TaiYuan 030051, China |
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| Abstract: | NiCo2O4 nanorods were synthesized by a hydrothermal method followed by low temperature calcination. FESEM and TEM analyses confirmed that the as-prepared materials consist of a hierarchical nanorod structure. When applied as cathode catalysts in rechargeable Li–O2 batteries, NiCo2O4 nanorods exhibited a superior catalytic activity, including low charge over-potential, high discharge capacity and high-rate capability. |
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