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- Title
Hollow Bio-derived Polymer Nanospheres with Ordered Mesopores for Sodium-Ion Battery.
- Authors
Ai, Yan; You, Yuxiu; Wei, Facai; Jiang, Xiaolin; Han, Zhuolei; Cui, Jing; Luo, Hao; Li, Yucen; Xu, Zhixin; Xu, Shunqi; Yang, Jun; Bao, Qinye; Jing, Chengbin; Fu, Jianwei; Cheng, Jiangong; Liu, Shaohua
- Abstract
Highlights: A novel coordination polymerization-driven hierarchical assembly approach for spatially controlled fabrication of phytic acid-based bio-derivatives was developed. The resultant ferric phytate bio-derived polymer featured hollow nanosphere architecture, ordered meso-channels, high surface area, and large pore volume, as anode material, delivering a remarkable electrochemical performance. Bio-inspired hierarchical self-assembly provides elegant and powerful bottom-up strategies for the creation of complex materials. However, the current self-assembly approaches for natural bio-compounds often result in materials with limited diversity and complexity in architecture as well as microstructure. Here, we develop a novel coordination polymerization-driven hierarchical assembly of micelle strategy, using phytic acid-based natural compounds as an example, for the spatially controlled fabrication of metal coordination bio-derived polymers. The resultant ferric phytate polymer nanospheres feature hollow architecture, ordered meso-channels of ~ 12 nm, high surface area of 401 m2 g−1, and large pore volume of 0.53 cm3 g−1. As an advanced anode material, this bio-derivative polymer delivers a remarkable reversible capacity of 540 mAh g−1 at 50 mA g−1, good rate capability, and cycling stability for sodium-ion batteries. This study holds great potential of the design of new complex bio-materials with supramolecular chemistry.
- Subjects
SODIUM ions; MESOPORES; POLYMERS; SUPRAMOLECULAR chemistry; METAL fabrication; COORDINATION polymers; ELECTRIC batteries; BIOELECTROCHEMISTRY
- Publication
Nano-Micro Letters, 2020, Vol 12, Issue 1, pN.PAG
- ISSN
2311-6706
- Publication type
Article
- DOI
10.1007/s40820-020-0370-1