TY  - JOUR
AU  - Zheng, Yangling
AU  - Zhang, Yu
AU  - Li, Xianguo
PY  - 2026
TI  - Construction of a Hydrophobic TiO2 Interfacial Layer on Zinc Anodes and Study of Its Cycling Performance
JO  - Periodical of Ocean University of China
SN  - 1672-5174
SP  - 106
EP  - 113
VL  - 56
IS  - 8
AB  - To address the persistent challenges of dendrite growth, hydrogen evolution, and corrosion in aqueous Zn-ion batteries, this study demonstrates the construction of a zincophilic-hydrophobic TiO2 interfacial layer on the Zn anode. This was achieved by grafting hydrophobic methacryloxypropyl groups (CH2 ＝ C(CH3)COO(CH2)3—) onto nano-TiO2 via the silane coupling agent (KH570). The grafted hydrocarbon chains act as a hydrophobic barrier, impeding H2O diffusion and promoting the desolvation of hydrated Zn2+ to suppress side reactions. Simultaneously, the abundant Ti—OH groups on TiO2 serve as zincophilic sites, increasing local Zn2+ concentration and facilitating uniform deposition. The modified Zn anode exhibited a transition from hydrophilic (79°) to hydrophobic (105°) wetting behavior and a significantly reduced charge-transfer resistance. Consequently, it delivered exceptional cycling stability exceeding 800 hours at 1 mA·cm-2 and 1 mAh·cm-2. This work provides a novel interfacial design strategy for high-performance zinc anodes.
UR  - https://doi.org/10.16441/j.cnki.hdxb.20250284
DO  - 10.16441/j.cnki.hdxb.20250284