title: Nature-Inspired Na2Ti3O7Nanosheets-Formed Three-Dimensional Microflowers Architecture as a High-Performance Anode Material for Rechargeable Sodium-Ion Batteries.
abstract: Low cycling stability and poor rate performance are two of the distinctive drawbacks of most electrode materials for sodium-ion batteries (SIBs). Here, inspired by natural flower structures, we take advantage of the three-dimensional (3D) hierarchical flower-like stable microstructures formed by two-dimensional (2D) nanosheets to solve these problems. By precise control of the hydrothermal synthesis conditions, a novel three-dimensional (3D) flower-like architecture consisting of 2D Na2Ti3O7nanosheets (Na-TNSs) has been successfully synthesized. The arbitrarily arranged but closely interlinked thin nanosheets in carnation-shaped 3D Na2Ti3O7microflowers (Na-TMFs) originate a good network of electrically conductive paths in an electrode. Thus, Na-TMFs can get electrons from all directions and be fully utilized for sodium-ion insertion and extraction reactions, which can improve sodium storage properties with enhanced rate capability and super cycling performance. Furthermore, the large specific surface area provides a high capacity, which can be ascribed to the pseudo-capacitance effect. The wettability of the electrolyte was also improved by the porous and crumpled structure. The remarkably improved cycling performance and rate capability of Na-TMFs make a captivating case for its development as an advanced anode material for SIBs.
authors.affiliation: Beijing Key Laboratory of Construction-Tailorable Advanced Functional Materials and Green Applications, School of Materials Science & Engineering, Beijing Institute of Technology , Beijing, 100081, China.
authors.forename: Shoaib
authors.initials: S
authors.lastname: Anwer
authors.affiliation: School of Materials Science & Engineering, Beijing Key Laboratory of Environmental Science and Engineering, Beijing Institute of Technology , Beijing 100081, China.
authors.forename: Yongxin
authors.initials: Y
authors.lastname: Huang
authors.affiliation: Beijing Key Laboratory of Construction-Tailorable Advanced Functional Materials and Green Applications, School of Materials Science & Engineering, Beijing Institute of Technology , Beijing, 100081, China.
authors.forename: Jia
authors.initials: J
authors.lastname: Liu
authors.affiliation: Beijing Key Laboratory of Construction-Tailorable Advanced Functional Materials and Green Applications, School of Materials Science & Engineering, Beijing Institute of Technology , Beijing, 100081, China.
authors.forename: Jiajia
authors.initials: J
authors.lastname: Liu
authors.affiliation: Beijing Key Laboratory of Construction-Tailorable Advanced Functional Materials and Green Applications, School of Materials Science & Engineering, Beijing Institute of Technology , Beijing, 100081, China.
authors.forename: Meng
authors.initials: M
authors.lastname: Xu
authors.affiliation: School of Materials Science & Engineering, Beijing Key Laboratory of Environmental Science and Engineering, Beijing Institute of Technology , Beijing 100081, China.
authors.forename: Ziheng
authors.initials: Z
authors.lastname: Wang
authors.affiliation: School of Materials Science & Engineering, Beijing Key Laboratory of Environmental Science and Engineering, Beijing Institute of Technology , Beijing 100081, China.|Collaborative Innovation Center of Electric Vehicles in Beijing, Beijing 100081, China.
authors.forename: Renjie
authors.identifier: http://orcid.org/0000-0002-7001-2926
authors.initials: R
authors.lastname: Chen
authors.affiliation: Beijing Key Laboratory of Construction-Tailorable Advanced Functional Materials and Green Applications, School of Materials Science & Engineering, Beijing Institute of Technology , Beijing, 100081, China.
authors.forename: Jiatao
authors.identifier: http://orcid.org/0000-0001-7414-4902
authors.initials: J
authors.lastname: Zhang
authors.affiliation: School of Materials Science & Engineering, Beijing Key Laboratory of Environmental Science and Engineering, Beijing Institute of Technology , Beijing 100081, China.|Collaborative Innovation Center of Electric Vehicles in Beijing, Beijing 100081, China.
authors.forename: Feng
authors.initials: F
authors.lastname: Wu
keywords: 2D nanosheets; 3D microflowers architecture; sodium ion battery anode; sodium titanate; sodium-ion batteries