In Situ Fabrication of Hierarchically Branched TiO2 Nanostructures: Enhanced Performance in Photocatalytic H2 Evolution and Li-Ion Batteries

被引：0

作者：

Yang, Guorui ^{[1
,2
]}

Wang, Ling ^{[1
]}

Peng, Shengjie ^{[2
,3
]}

Wang, Jianan ^{[1
]}

Ji, Dongxiao ^{[2
]}

Yan, Wei ^{[1
]}

Ramakrishna, Seeram ^{[2
]}

机构：

[1] Xi An Jiao Tong Univ, Dept Environm Sci & Engn, State Key Lab Multiphase Flow Power Engn, Xian 710049, Shaanxi, Peoples R China

[2] Natl Univ Singapore, Dept Mech Engn, Singapore 117574, Singapore

[3] Nanjing Univ Aeronaut & Astronaut, Jiangsu Key Lab Mat & Technol Energy Convers, Coll Mat Sci & Technol, Nanjing 210016, Jiangsu, Peoples R China

来源：

SMALL | 2017年 / 13卷 / 47期

基金：

中国博士后科学基金;

关键词：

branched; electrospinning; H-2; in situ growth; Li-ion batteries; ELECTROCHEMICAL PERFORMANCE; FACILE SYNTHESIS; NANOFIBERS; ELECTRODES; ARRAYS; INTERCALATION; PHOTOCURRENT; COMPOSITES; NANOTUBES; NANOWIRES;

D O I：

10.1002/smll.201702449

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

1D branched TiO2 nanomaterials play a significant role in efficient photocatalysis and high-performance lithium ion batteries. In contrast to the typical methods which generally have to employ epitaxial growth, the direct in situ growth of hierarchically branched TiO2 nanofibers by a combination of the electrospinning technique and the alkali-hydrothermal process is presented in this work. Such the branched nanofibers exhibit improvement in terms of photocatalytic hydrogen evolution (0.41 mmol g(-1) h(-1)), in comparison to the conventional TiO2 nanofibers (0.11 mmol g(-1) h(-1)) and P25 (0.082 mmol g(-1) h(-1)). Furthermore, these nanofibers also deliver higher lithium specific capacity at different current densities, and the specific capacity at the rate of 2 C is as high as 201. 0 mAh g(-1), roughly two times higher than that of the pristine TiO2 nanofibers.

引用

页数：9