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.

中文翻译：

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分层支化的TiO2纳米结构的原位制造：增强的光催化H2析出和锂离子电池性能

一维支化TiO ₂纳米材料在有效的光催化和高性能锂离子电池中起着重要作用。与通常必须采用外延生长的典型方法相反，这项工作提出了通过电纺丝技术和碱-水热工艺相结合的分层支化的TiO ₂纳米纤维的直接原位生长。与常规的TiO ₂纳米纤维（0.11mmol g ^-1 h ^-1）和P25（0.082 mmol g ^-1 h ）相比，这种支化纳米纤维在光催化氢释放（0.41 mmol g ^-1 h ^-1）方面表现出改进。^-1）。此外，这些纳米纤维还以不同的电流密度提供更高的锂比容量，并且在2 C的速率下的比容量高达201. 0 mAh g ^-1，大约是原始TiO ₂纳米纤维的比容量的两倍。