Self‐Supported Nanotube Arrays of Sulfur‐Doped TiO2 Enabling Ultrastable and Robust Sodium Storage

作者：Jiangfeng Ni, Shidong Fu, Chao Wu, Joachim Maier, Yan Yu, Liang Li · 发表于：Advanced Materials · 年份：2016 · DOI：10.1002/adma.201504412 · 被引用次数：501 · 研究领域：Advancements in Battery Materials、Advanced Battery Materials and Technologies、Chemical Synthesis and Characterization

Self-supported nanotube arrays of sulfur-doped TiO2 on metal substrates are fabricated using electrochemical anodization and subsequent sulfidation. The nanotube arrays can serve as an efficient anode for sodium storage, enabling ultrastable cycling (retaining 91% of the 2nd capacity up to 4400 cycles) and robust rate capability (167 mA h g(-1) at 3350 mA g(-1)), remarkably outperforming any other reported TiO2 -based electrodes.