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

Journal Article · · Nanoscale
DOI:https://doi.org/10.1039/C6NR01462C· OSTI ID:1261319
 [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)

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.

Research Organization:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Spallation Neutron Source (SNS); Energy Frontier Research Centers (EFRC) (United States). Fluid Interface Reactions, Structures and Transport Center (FIRST)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1261319
Journal Information:
Nanoscale, Vol. 8, Issue 17; ISSN 2040-3364
Publisher:
Royal Society of ChemistryCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 177 works
Citation information provided by
Web of Science

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Cited By (20)

Hydrophobic, Flexible, and Lightweight MXene Foams for High-Performance Electromagnetic-Interference Shielding journal August 2017
Clay-Inspired MXene-Based Electrochemical Devices and Photo-Electrocatalyst: State-of-the-Art Progresses and Challenges journal January 2018
Electronic and Optical Properties of 2D Transition Metal Carbides and Nitrides (MXenes) journal November 2018
MXene‐Based Composites: Synthesis and Applications in Rechargeable Batteries and Supercapacitors journal February 2019
Scalable Manufacturing of Large and Flexible Sheets of MXene/Graphene Heterostructures journal March 2019
Atomic Sn 4+ Decorated into Vanadium Carbide MXene Interlayers for Superior Lithium Storage journal December 2018
Functional MXene Materials: Progress of Their Applications journal August 2018
Two‐Dimensional Transition Metal Carbides and Nitrides (MXenes): Synthesis, Properties, and Electrochemical Energy Storage Applications journal March 2020
Nanoengineering of 2D MXene‐Based Materials for Energy Storage Applications journal July 2019
Delaminating Vanadium Carbides for Zinc‐Ion Storage: Hydrate Precipitation and H + /Zn 2+ Co‐Action Mechanism journal August 2019
2D metal carbides and nitrides (MXenes) for energy storage journal January 2017
Ultra-high-rate pseudocapacitive energy storage in two-dimensional transition metal carbides journal July 2017
Latest advances in supercapacitors: from new electrode materials to novel device designs journal January 2017
Investigation of chloride ion adsorption onto Ti 2 C MXene monolayers by first-principles calculations journal January 2017
Flexible Ti 3 C 2 T x /PEDOT:PSS films with outstanding volumetric capacitance for asymmetric supercapacitors journal January 2019
Layer-by-layer assembly of MXene and carbon nanotubes on electrospun polymer films for flexible energy storage journal January 2018
Tunable energy storage capacity of two-dimensional Ti 3 C 2 T x modified by a facile two-step pillaring strategy for high performance supercapacitor electrodes journal January 2019
Improving the performance of a titanium carbide MXene in supercapacitors by partial oxidation treatment journal January 2020
Microscopic dynamics in room-temperature ionic liquids confined in materials for supercapacitor applications journal January 2020
Achieving high bactericidal and antibiofouling activities of 2D titanium carbide (Ti 3 C 2 T x ) by delamination and intercalation journal June 2019

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