Fe2O3@C nanocomposites as anode materials for lithium- and sodium ion batteries with high cyclic stability

由于易于合成、低成本、低毒性和高容量，氧化铁纳米材料及其衍生化合物在锂离子和钠离子电池中具有储存能量的潜力。因此，我们建议研究fe2o3基碳纳米复合材料的生长机制、合成路线以及结构、磁性和电化学性能。这将通过结合东道主团队的能力来实现，即凝聚态物理和材料科学，包括电池实验室，以及Zakharova博士，他是一位国际知名的无机化学家，在合成氧化物纳米结构方面拥有丰富的经验。特别是，我们将详细研究氧化铁纳米复合材料的结构、形貌和粒度对其物理和电化学性能的影响。本文将着重对材料进行改进，以期获得一种具有良好循环稳定性和放电能力的新型阳极材料。主要的科学目标是：(1)获得对生长机制和合成路线的基本认识；(2)寻找具有良好循环稳定性和放电容量的锂离子和钠离子电池的负极材料。

Due to easy synthesis, low cost, low toxicity, and high capacity, iron oxides nanomaterials and derived compounds are particularly promising regarding their potential for energy storage in Li- and Na-ion batteries. We hence propose to study the growth mechanisms and synthesis routes as well as the structural, magnetic, and electrochemical properties of Fe2O3-based carbon nanocomposites. This will be achieved by combining the competences of the host team, i.e. condensed matter physics and materials science including a battery laboratory, and of Dr. Zakharova, who is an internationally renowned inorganic chemist with great experience in synthesis of oxide nanostructures. In particular, we will study in detail the effect of structure, morphology, and particle size of the iron oxide nanocomposites on their physical and electrochemical properties. Particular emphasis will be put on improving the material aiming at a novel anode material with a good cycling stability and discharge capacity. The main scientific aims are (1) to gain fundamental understanding of growth mechanisms and synthesis routes, and (2) to search for anode material of Li- and Na-ion batteries with a good cycling stability and discharge capacity.