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Mesoporous Prussian Blue Analogues: Template‐Free Synthesis and Sodium‐Ion Battery Applications

2014; Wiley; Volume: 53; Issue: 12 Linguagem: Inglês

10.1002/anie.201310679

1521-3773

Yan‐Feng Yue, Andrew Binder, Bingkun Guo, Zhiyong Zhang, Zhen‐An Qiao, Chengcheng Tian, Sheng Dai,

Advanced Battery Materials and Technologies

The synthesis of mesoporous Prussian blue analogues through a template-free methodology and the application of these mesoporous materials as high-performance cathode materials in sodium-ion batteries is presented. Crystalline mesostructures were produced through a synergistically coupled nanocrystal formation and aggregation mechanism. As cathodes for sodium-ion batteries, the Prussian blue analogues all show a reversible capacity of 65 mA h g-1 at low current rate and show excellent cycle stability. The reported method stands as an environmentally friendly and low-cost alternative to hard or soft templating for the fabrication of mesoporous materials.