Na2Ti3O7纳米片原位制备与钠离子电池负极材料应用.PDFVIP

Supplementary Information for Acta Phys. -Chim. Sin. 2016, 32 (1), 349–355 doi: 10.3866/PKU.WHXB201512073 Na2Ti3O7 纳米片原位制备与钠离子电池负极材料应用 陈程成 1 张 宁 1 刘永畅 1 王一菁 1 陈 军 1,2,* (1 南开大学化学学院，先进能源材料教育部重点实验室，天津 300071； 2 南开大学，天津化学化工协同创新中心，天津 300071) In-situ Preparation of Na2Ti3O7 Nanosheets as High-Performance Anodes for Sodium Ion Batteries CHEN Cheng-Cheng1 ZHANG Ning1 LIU Yong-Chang1 WANG Yi-Jing1 CHEN Jun1,2,* (1Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education), College of Chemistry, Nankai University, Tianjin 300071, P. R. China; 2Collaborative Innovation Center of Chemical Science and Engineering, Nankai University, Tianjin 300071, P. R. China)) ?Corresponding author. Email: chenabc@nankai.edu.cn; Tel: +86-22 S1 Fig.S1 SEM images of the NTO precursor in different concentrations of NaOH solution ((a) 0, (b) 0.1, (c) 0.5, (d) 1, (e) 2 mol?L-1) and corresponding NTO/Ti wafers Further discussion (concentration optimization) In order to obtain the appropriate mass, uniform morphology, and well crystallinity Na2Ti3O7 electrodes, the reaction concentration and temperature have been optimized. Fig.S1 shows the SEM images of precursors reacted in 0, 0.1, 0.5, 1, 2 mol?L-1 sodium hydroxide solution, respectively. It can be observed clearly that the corrosion degree gradually deepened with concentration increase. Fig.S1a exhibits th