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Title: The effect of hydrazine intercalation on the structure and capacitance of 2D titanium carbide (MXene)

Herein we show that hydrazine intercalation into 2D titanium carbide (Ti 3C 2-based MXene) results in changes in its surface chemistry by decreasing the amounts of fluorine, OH surface groups and intercalated water. It also creates a pillaring effect between Ti 3C 2T x layers pre-opening the structure and improving the accessability to active sites. Furthermore, the hydrazine treated material has demonstrated a greatly improved capacitance of 250 F g –1 in acidic electrolytes with an excellent cycling ability for electrodes as thick as 75 μm.
Authors:
 [1] ;  [1] ;  [2] ;  [3] ;  [2] ;  [1] ;  [1]
  1. Drexel Univ., Philadelphia, PA (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  3. CEMHTI-CNRS, Univ. Orleans, Orleans (France)
Publication Date:
Grant/Contract Number:
AC05-00OR22725
Type:
Accepted Manuscript
Journal Name:
Nanoscale
Additional Journal Information:
Journal Volume: 8; Journal Issue: 17; Journal ID: ISSN 2040-3364
Publisher:
Royal Society of Chemistry
Research Org:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Spallation Neutron Source (SNS)
Sponsoring Org:
USDOE Office of Science (SC)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE
OSTI Identifier:
1261319

Mashtalir, O., Lukatskaya, Maria R., Kolesnikov, Alexander I., Raymundo-Pinero, E., Naguib, Michael, Barsoum, M. W., and Gogotsi, Yury G.. The effect of hydrazine intercalation on the structure and capacitance of 2D titanium carbide (MXene). United States: N. p., Web. doi:10.1039/C6NR01462C.
Mashtalir, O., Lukatskaya, Maria R., Kolesnikov, Alexander I., Raymundo-Pinero, E., Naguib, Michael, Barsoum, M. W., & Gogotsi, Yury G.. The effect of hydrazine intercalation on the structure and capacitance of 2D titanium carbide (MXene). United States. doi:10.1039/C6NR01462C.
Mashtalir, O., Lukatskaya, Maria R., Kolesnikov, Alexander I., Raymundo-Pinero, E., Naguib, Michael, Barsoum, M. W., and Gogotsi, Yury G.. 2016. "The effect of hydrazine intercalation on the structure and capacitance of 2D titanium carbide (MXene)". United States. doi:10.1039/C6NR01462C. https://www.osti.gov/servlets/purl/1261319.
@article{osti_1261319,
title = {The effect of hydrazine intercalation on the structure and capacitance of 2D titanium carbide (MXene)},
author = {Mashtalir, O. and Lukatskaya, Maria R. and Kolesnikov, Alexander I. and Raymundo-Pinero, E. and Naguib, Michael and Barsoum, M. W. and Gogotsi, Yury G.},
abstractNote = {Herein we show that hydrazine intercalation into 2D titanium carbide (Ti3C2-based MXene) results in changes in its surface chemistry by decreasing the amounts of fluorine, OH surface groups and intercalated water. It also creates a pillaring effect between Ti3C2Tx layers pre-opening the structure and improving the accessability to active sites. Furthermore, the hydrazine treated material has demonstrated a greatly improved capacitance of 250 F g–1 in acidic electrolytes with an excellent cycling ability for electrodes as thick as 75 μm.},
doi = {10.1039/C6NR01462C},
journal = {Nanoscale},
number = 17,
volume = 8,
place = {United States},
year = {2016},
month = {3}
}