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Title: Na-Ion Intercalation and Charge Storage Mechanism in 2D Vanadium Carbide

Abstract

Two-dimensional vanadium carbide MXene containing surface functional groups (denoted as V2CTx, where Tx are surface functional groups) was synthesized and studied as anode material for Na-ion batteries. V2CTx anode exhibits reversible charge storage with good cycling stability and high rate capability through electrochemical test. The charge storage mechanism of V2CTx material during Na+ intercalation/deintercalation and the redox reaction of vanadium were studied using a combination of synchrotron based X-ray diffraction (XRD), hard X-ray absorption near edge spectroscopy (XANES) and soft X-ray absorption spectroscopy (sXAS). Experimental evidence of a major contribution of redox reaction of vanadium to the charge storage and the reversible capacity of V2CTx during sodiation/desodiation process have been provided through V K-edge XANES and V L2,3-edge sXAS results. A correlation between the CO32- content and Na+ intercalation/deintercalation states in the V2CTx electrode observed from C and O K-edge in sXAS results imply that some additional charge storage reactions may take place between the Na+-intercalated V2CTx and the carbonate based non-aqueous electrolyte. The results of this study will provide valuable information for the further studies on V2CTx as anode material for Na-ion batteries and capacitors.

Authors:
 [1];  [2];  [2];  [3];  [4];  [5];  [1];  [5];  [1]
  1. Chemistry Division, Brookhaven National Laboratory, Upton NY 11973 USA
  2. Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley CA 94720 USA
  3. X-Ray Science Division, Argonne National Laboratory, Argonne IL 60439 USA
  4. Institute of Physics, Chinese Academy of Science, Beijing 100190 China
  5. Department of Material Science and Engineering, A.J. Drexel Nanomaterials Institute, Drexel University, Philadelphia PA 19104 USA
Publication Date:
Research Org.:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS); Brookhaven National Laboratory (BNL), Upton, NY (United States); Argonne National Lab. (ANL), Argonne, IL (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (EE-3V); Chinese Academy of Sciences
OSTI Identifier:
1415478
Report Number(s):
BNL-113977-2017-JA
Journal ID: ISSN 1614-6832; 137124
DOE Contract Number:
AC02-05CH11231; SC0012704; AC02‐76SF00515; AC02‐06CH11357
Resource Type:
Journal Article
Resource Relation:
Journal Name: Advanced Energy Materials; Journal Volume: 7; Journal Issue: 20
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; MXene; X-ray absorption; charge storage; sodium-ion battery; spectroscopy; vanadium carbide

Citation Formats

Bak, Seong-Min, Qiao, Ruimin, Yang, Wanli, Lee, Sungsik, Yu, Xiqian, Anasori, Babak, Lee, Hungsui, Gogotsi, Yury, and Yang, Xiao-Qing. Na-Ion Intercalation and Charge Storage Mechanism in 2D Vanadium Carbide. United States: N. p., 2017. Web. doi:10.1002/aenm.201700959.
Bak, Seong-Min, Qiao, Ruimin, Yang, Wanli, Lee, Sungsik, Yu, Xiqian, Anasori, Babak, Lee, Hungsui, Gogotsi, Yury, & Yang, Xiao-Qing. Na-Ion Intercalation and Charge Storage Mechanism in 2D Vanadium Carbide. United States. doi:10.1002/aenm.201700959.
Bak, Seong-Min, Qiao, Ruimin, Yang, Wanli, Lee, Sungsik, Yu, Xiqian, Anasori, Babak, Lee, Hungsui, Gogotsi, Yury, and Yang, Xiao-Qing. Fri . "Na-Ion Intercalation and Charge Storage Mechanism in 2D Vanadium Carbide". United States. doi:10.1002/aenm.201700959.
@article{osti_1415478,
title = {Na-Ion Intercalation and Charge Storage Mechanism in 2D Vanadium Carbide},
author = {Bak, Seong-Min and Qiao, Ruimin and Yang, Wanli and Lee, Sungsik and Yu, Xiqian and Anasori, Babak and Lee, Hungsui and Gogotsi, Yury and Yang, Xiao-Qing},
abstractNote = {Two-dimensional vanadium carbide MXene containing surface functional groups (denoted as V2CTx, where Tx are surface functional groups) was synthesized and studied as anode material for Na-ion batteries. V2CTx anode exhibits reversible charge storage with good cycling stability and high rate capability through electrochemical test. The charge storage mechanism of V2CTx material during Na+ intercalation/deintercalation and the redox reaction of vanadium were studied using a combination of synchrotron based X-ray diffraction (XRD), hard X-ray absorption near edge spectroscopy (XANES) and soft X-ray absorption spectroscopy (sXAS). Experimental evidence of a major contribution of redox reaction of vanadium to the charge storage and the reversible capacity of V2CTx during sodiation/desodiation process have been provided through V K-edge XANES and V L2,3-edge sXAS results. A correlation between the CO32- content and Na+ intercalation/deintercalation states in the V2CTx electrode observed from C and O K-edge in sXAS results imply that some additional charge storage reactions may take place between the Na+-intercalated V2CTx and the carbonate based non-aqueous electrolyte. The results of this study will provide valuable information for the further studies on V2CTx as anode material for Na-ion batteries and capacitors.},
doi = {10.1002/aenm.201700959},
journal = {Advanced Energy Materials},
number = 20,
volume = 7,
place = {United States},
year = {Fri Jul 14 00:00:00 EDT 2017},
month = {Fri Jul 14 00:00:00 EDT 2017}
}