Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/121887
Title: METAL OXIDE-BASED NANOMATERIALS FOR LITHIUM-OXYGEN BATTERIES APPLICATION
Authors: ZHANG JIAN
Keywords: Li-O2 batteries, Metal oxides, Porous structure, Large surface area, Nanomaterials, Energy storage system
Issue Date: 3-Sep-2015
Citation: ZHANG JIAN (2015-09-03). METAL OXIDE-BASED NANOMATERIALS FOR LITHIUM-OXYGEN BATTERIES APPLICATION. ScholarBank@NUS Repository.
Abstract: RECHARGEABLE LI?O2 BATTERIES WITH REMARKABLY HIGH THEORETICAL ENERGY DENSITY HAVE ATTRACTED EXTENSIVE ATTENTION. HOWEVER, TO ENABLE LI?O2 BATTERIES FOR PRACTICAL APPLICATIONS, NUMEROUS CHALLENGES NEED TO BE OVERCOME, E.G. HIGH OVERPOTENTIAL, LOW RATE CAPABILITY, AND POOR CYCLING STABILITY. THE KEY FACTOR TO TACKLE THESE ISSUES IS TO DEVELOP HIGHLY-EFFICIENT CATHODE CATALYSTS. MOREOVER, THE CATHODE CATALYSTS WITH POROUS STRUCTURE AND LARGE SURFACE AREA ARE FAVORABLE IN LI-O2 BATTERIES, WHICH CAN FACILITATE THE DIFFUSION OF OXYGEN AND ELECTROLYTE, AS WELL AS PROVIDING SUFFICIENT CATALYTIC ACTIVE SITES FOR ORR/OER. IN THIS STUDY, POROUS PEROVSKITE LANIO3 NANOCUBES, SPINEL-TYPE POROUS CO?MN?O NANOCUBES, HIERARCHICAL POROUS D-MNO2 NANOBOXES AND POROUS CO3O4 NANOBOXES HAVE BEEN DEVELOPED AND EMPLOYED AS THE CATHODE CATALYSTS FOR LI-O2 BATTERIES. THE SYNERGISTIC EFFECTS OF LARGE SPECIFIC SURFACE AREA, POROUS OR HOLLOW STRUCTURE, AND HIGH ELECTROCATALYTIC ACTIVITY OF THESE CATALYSTS ENDOW THE
URI: http://scholarbank.nus.edu.sg/handle/10635/121887
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