@article{Liu2025, 
author = {Jiamei Liu and Xiaowei Shi and Jia Liu and Chang Huang and Chao Li and Haixiao Kang and Zhan Gao and Lei Li},
title = {Crystallinity degree of MoSe2 influencing its potassium-ion storage performance},
year = {2025},
journal = {Nano Research Energy},
volume = {4},
pages = {e9120143},
keywords = {crystallinity degree, potassium ions storage, interlayer spacing, MoSe2},
url = {https://www.sciopen.com/article/10.26599/NRE.2024.9120143},
doi = {10.26599/NRE.2024.9120143},
abstract = {The effect of crystallinity degree of MoSe2 on the potassium ions storage performance in potassium-ion batteries (PIBs) has been largely overlooked in the energy communities. In this study, we experimentally realize MoSe2 grown on graphene nanoribbons (MoSe2-GNR) with tunable crystallinity by tailoring the thermal annealing temperature, and further investigate the effect of crystallinity degree in MoSe2-GNR on the potassium ions storage performance. The spectral, electrochemical, and microscopy experiments indicate that high-temperature thermal annealing results in a high crystallinity degree of MoSe2-GNR with decreased interlayer spacing of (002). The MoSe2-GNR with high crystallinity degree exhibits a high capacity, but suffers from reduced cycling stability. What is more, the in-situ X-ray powder diffractometer (in-situ XRD) and in-situ Raman experiments reveal the phase transition in MoSe2 triggered by potassium ions insertion/extraction during the potassium ions storage. The work sheds light on the development of MoSe2-based anode materials for PIBs.}
}