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dc.contributor.authorLim, Tuti Marianaen
dc.contributor.authorRui, Xianhongen
dc.contributor.authorTan, Huitengen
dc.contributor.authorSim, Daohaoen
dc.contributor.authorLiu, Weilingen
dc.contributor.authorXu, Chenen
dc.contributor.authorHng, Huey Hoonen
dc.contributor.authorYazami, Rachiden
dc.contributor.authorYan, Qingyuen
dc.identifier.citationRui, X., Tan, H., Sim, D., Liu, W., Xu, C., Hng, H. H., et al. (2013). Template-free synthesis of urchin-like Co3O4 hollow spheres with good lithium storage properties. Journal of power sources, 222, 97-102.en
dc.description.abstractHierarchical urchin-like hollow spheres (5–8 μm in diameter) assembled by one-dimensional nanowires consisting of many interconnected Co3O4 nanoparticles (10–50 nm) are successfully synthesized. Co(CO3)0.5(OH)·0.11H2O precursors are firstly prepared by a hydrothermal process. The morphological evolution process of Co(CO3)0.5(OH)·0.11H2O hollow urchin precursors is investigated and a plausible mechanism is proposed. Then, the Co(CO3)0.5(OH)·0.11H2O are converted to Co3O4 through heat treatment in air. As an anode material for lithium ion batteries, urchin-like Co3O4 hollow spheres exhibit highly reversible specific capacities, good cycling stabilities and excellent rate capabilities (e.g., 433 mAh g−1 at 10 C). The superior performances result from the synergetic effect of integral urchin-like microstructure, small diffusion lengths in the nanoparticle building blocks and sufficient void space to buffer the volume expansion.en
dc.relation.ispartofseriesJournal of power sourcesen
dc.titleTemplate-free synthesis of urchin-like Co3O4 hollow spheres with good lithium storage propertiesen
dc.typeJournal Articleen
dc.contributor.schoolSchool of Civil and Environmental Engineeringen
dc.contributor.schoolSchool of Materials Science & Engineeringen
dc.contributor.organizationTUM CREATE Centre for Electromobilityen
dc.contributor.researchEnergy Research Institute @NTUen
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