School of Chemical and Biomedical Engineering, Nanyang Technological University, 70 Nanyang Drive, Singapore 637457, Singapore.
J Am Chem Soc. 2012 Oct 24;134(42):17388-91. doi: 10.1021/ja307475c. Epub 2012 Oct 15.
Fe(2)O(3) microboxes with hierarchically structured shells have been synthesized simply by annealing Prussian blue (PB) microcubes. By utilizing simultaneous oxidative decomposition of PB microcubes and crystal growth of iron oxide shells, we have demonstrated a scalable synthesis of anisotropic hollow structures with various shell architectures. When evaluated as an anode material for lithium ion batteries, the Fe(2)O(3) microboxes with a well-defined hollow structure and hierarchical shell manifested high specific capacity (~950 mA h g(-1) at 200 mA g(-1)) and excellent cycling performance.
Fe(2)O(3) 微盒具有分级结构的壳，通过简单地退火普鲁士蓝 (PB) 微立方体合成。通过利用 PB 微立方体的同时氧化分解和氧化铁壳的晶体生长，我们展示了具有各种壳结构的各向异性空心结构的可扩展合成。当作为锂离子电池的阳极材料进行评估时，具有明确的空心结构和分级壳的 Fe(2)O(3) 微盒表现出高比容量（在 200 mA g(-1)时约为 950 mA h g(-1))和优异的循环性能。
