Nature-inspired Cu2O@CoO tree-like architecture for robust storage of sodium

• 作者: Zhenzhu Wang Menglei Sun Jiangfeng Ni Liang Li
• 来源期刊: 材料科学技术（英文版）
• 年，卷（期）: 2020,（18）
• 页码范围: 126-131
• 页数: 6页
• 语种: 英文

摘要

We report a nature-inspired design of tree-like architecture of cuprous oxide (Cu2O) stem and cobalt oxides (CoO) branch serving as an efficient anode for sodium-ion batteries.The construction of stem-branch architectures involves the growth of Cu2O nanorods and the subsequent deposition of CoO nanowires.Due to abundant active sites and full exposure to electrolyte,such a Cu2O@CoO stem-branch architecture demonstrates a robust storage toward Na+ ions,affording a capacity retention of ～100％ over 300 continuous cycles and a remarkable rate capability of 296 mAh g-1 at 1 A g-1.This result clearly shows the potential of nature-inspired materials engineering may find extensive applications in the design of high-performance electrodes for rechargeable batteries.