Electron and ion transport behavior of Vanadium based MXene induced by pressure for Lithium ion intercalated electrodes

Guangbo Chen; Juncheng Lv; Yanfeng Han; Qi Zhang; Yang Liu; Jihui Lang; Xiaoxin Wu; Jingshu Wang; Ming Lu; Junkai Zhang

doi:10.1016/j.jcis.2022.11.105

Electron and ion transport behavior of Vanadium based MXene induced by pressure for Lithium ion intercalated electrodes

J Colloid Interface Sci. 2023 Mar:633:207-217. doi: 10.1016/j.jcis.2022.11.105. Epub 2022 Nov 24.

Authors

Guangbo Chen¹, Juncheng Lv², Yanfeng Han², Qi Zhang², Yang Liu², Jihui Lang², Xiaoxin Wu², Jingshu Wang³, Ming Lu⁴, Junkai Zhang⁵

Affiliations

¹ Key Laboratory of Functional Materials Physics and Chemistry (Ministry of Education), College of Physics, Jilin Normal University, Changchun 130103, China; United Laboratory of High Pressure Physics and Earthquake Science, Institute of Earthquake Forecasting, Earthquake Administration, Beijing 100036, China.
² Key Laboratory of Functional Materials Physics and Chemistry (Ministry of Education), College of Physics, Jilin Normal University, Changchun 130103, China.
³ Key Laboratory of Functional Materials Physics and Chemistry (Ministry of Education), College of Physics, Jilin Normal University, Changchun 130103, China. Electronic address: wjs@jlnu.edu.cn.
⁴ Key Laboratory of Functional Materials Physics and Chemistry (Ministry of Education), College of Physics, Jilin Normal University, Changchun 130103, China; The Joint Laboratory of MXene Materials, Jilin Normal University & Jilin 11 Technology Co., Ltd., Changchun 130103, China.
⁵ Key Laboratory of Functional Materials Physics and Chemistry (Ministry of Education), College of Physics, Jilin Normal University, Changchun 130103, China; United Laboratory of High Pressure Physics and Earthquake Science, Institute of Earthquake Forecasting, Earthquake Administration, Beijing 100036, China; The Joint Laboratory of MXene Materials, Jilin Normal University & Jilin 11 Technology Co., Ltd., Changchun 130103, China.

PMID: 36446213
DOI: 10.1016/j.jcis.2022.11.105

Abstract

Pressure, analogous with temperature and composition, is other meaningful variant for tuning the structure-activity properties of layered materials. In-situ high-pressure electrical results discover that Vanadium based MXene (V₂CT_x MXene) conductivity is increased by one order of magnitude from ambient to 10.4 GPa, and then the conductivity is still fixated on meeting growth as pressure releasing. Increased carrier concentration due to denser compactness is the most important factor in improving sample conductivity. Furthermore, abundant of V₂CT_x samples after preloading different pressures are prepared by the mean of the double-anvil hydraulic press for the first time, and results of increased conductivity were reproduced at ambient conditions. The first-principles calculation of V₂C (non-functional group), V₂CF, V₂CO, and V₂COH explains for the lattice expansion by tracing emotion of different function groups upon decompression. Electrochemical results obtain that once forming V₂CT_x MXene anode rapidly quenched from 2.0 GPa in hydraulic press shows better performance, obviously weakening electric polarization and increasing Li-ion transport rate due to its proper interlaminar densification and improved conductivity. This work opens up a new, simple, and universal approach to develop MXene materials with superior electrical and electrochemical properties, as well as expanding the potential applications for energy storage.

Keywords: Electrical transport; Lithium-ion; Pressure; V2C.