A Single-Li+ and Electron Mixed Conductor via Intrinsic Ion-Carrier Implantation in a Metal–Organic Framework
- 1School of Chemistry and Materials Science
- 2University of Science and Technology of China
- 3State Key Laboratory of Precision and Intelligent Chemistry
Abstract
We report a crystalline metal–organic framework (MOF) that enables efficient Li+ and electron conduction, where a triphenylene ligand functionalized with a propylsulfonate group is designed and utilized to introduce mobile Li+ ions while forming extended conjugation for electron transport. The resulting MOF exhibits a mixed conduction behavior in the solid state with a Li+ conductivity of up to 1.10 mS cm−1 and an electronic conductivity of 15.81 mS cm−1 at room temperature, together with a Li+ transference number close to 1.0. Mechanistic studies reveal that the conformationally dynamic propylsulfonate groups facilitate Li+ transport with low energy barriers in a manner resembling wobbling paddle wheels, and the rigid, conjugated scaffold promotes electronic conduction through in-plane π–d orbital coupling and interlayer interactions. This work establishes an effective bottom-up route for constructing crystalline, porous mixed Li+-electron conductors, offering a new platform for solid-state electrochemical devices requiring synchronized ion and electron transport.
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BibTeX
@misc{yang2026singleli,
title = {{A Single-Li+ and Electron Mixed Conductor via Intrinsic Ion-Carrier Implantation in a Metal–Organic Framework}},
author = {Chao Yang and Pengjia Qi and Liangjian Su and Jianbin Zhou and Zheng Meng},
howpublished = {ChemRxiv},
year = {2026},
month = oct,
doi = {10.26434/chemrxiv.15010698/v1},
url = {https://chemrxiv.org/doi/full/10.26434/chemrxiv.15010698/v1},
note = {CC BY},
}
RIS
TY - UNPB
TI - A Single-Li+ and Electron Mixed Conductor via Intrinsic Ion-Carrier Implantation in a Metal–Organic Framework
AU - Chao Yang
AU - Pengjia Qi
AU - Liangjian Su
AU - Jianbin Zhou
AU - Zheng Meng
PY - 2026
DA - 2026/10/20
PB - ChemRxiv
DO - 10.26434/chemrxiv.15010698/v1
UR - https://chemrxiv.org/doi/full/10.26434/chemrxiv.15010698/v1
AB - We report a crystalline metal–organic framework (MOF) that enables efficient Li+ and electron conduction, where a triphenylene ligand functionalized with a propylsulfonate group is designed and utilized to introduce mobile Li+ ions while forming extended conjugation for electron transport. The resulting MOF exhibits a mixed conduction behavior in the solid state with a Li+ conductivity of up to 1.10 mS cm−1 and an electronic conductivity of 15.81 mS cm−1 at room temperature, together with a Li+ transference number close to 1.0. Mechanistic studies reveal that the conformationally dynamic propylsulfonate groups facilitate Li+ transport with low energy barriers in a manner resembling wobbling paddle wheels, and the rigid, conjugated scaffold promotes electronic conduction through in-plane π–d orbital coupling and interlayer interactions. This work establishes an effective bottom-up route for constructing crystalline, porous mixed Li+-electron conductors, offering a new platform for solid-state electrochemical devices requiring synchronized ion and electron transport.
ER -