Template-directed synthesis of nanomaterials can provide benefits such as small crystalline size, high surface area, large surface-to-volume ratio, and structural stability. These properties are important for shorter distance in ion/electron movement and better electrode surface/electrolyte contact for energy storage applications. Here nanostructured FePO4 cathode materials were synthesized by using peptide nanostructures as a template inspired by biomineralization process. The amorphous, high surface area FePO4 nanostructures were utilized as a cathode for lithium-ion batteries. Discharge capacity of 155 mAh/g was achieved at C/20 current rate. The superior properties of biotemplated and nanostructured amorphous FePO4 are shown compared to template-free crystalline FePO4.
Bibliographical noteKAUST Repository Item: Exported on 2021-07-06
Acknowledgements: This work was partially funded by TUBITAK Grant No.113M900. We thank Dr. A. Shaikh for help in peptide synthesis and M. Guler for TEM imaging.
ASJC Scopus subject areas
- General Materials Science