@article{Zhang2024, 
author = {Hui Zhang and Xingwu Zhai and Xin Cao and Zhihao Liu and Xinfeng Tang and Zhihong Hu and Hang Wang and Zhandong Wang and Yang Xu and Wei He and Wei Zheng and Min Zhou and ZhengMing Sun},
title = {Phase Engineering of MXene Derivatives Via Molecular Design for High-Rate Sodium-Ion Batteries},
year = {2024},
journal = {Energy & Environmental Materials},
volume = {7},
number = {5},
pages = {e12692},
keywords = {high-rate sodium-ion batteries, molecular design, MXene derivative, phase engineering},
url = {https://www.sciopen.com/article/10.1002/eem2.12692},
doi = {10.1002/eem2.12692},
abstract = {Since 2019, research into MXene derivatives has seen a dramatic rise; further progress requires a rational design for specific functionality. Herein, through a molecular design by selecting suitable functional groups in the MXene coating, we have implemented the dual N doping of the derivatives, nitrogen-doped TiO2@nitrogen-doped carbon nanosheets (N-TiO2@NC), to strike a balance between the active anatase TiO2 at low temperatures, and carbon activation at high temperatures. The NH3 reduction environment generated at 400 °C as evidenced by the in situ pyrolysis SVUV-PIMS process is crucial for concurrent phase engineering. With both electrical conductivity and surface Na+ availability, the N-TiO2@NC achieves higher interface capacitive-like sodium storage with long-term stability. More than 100 mAh g−1 is achieved at 2 A g−1 after 5000 cycles. The proposed design may be extended to other MXenes and solidify the growing family of MXene derivatives for energy storage.}
}