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Title: Ion-Exchange and Cation Solvation Reactions in Ti3C2 MXene

Journal Article · · Chemistry of Materials
 [1];  [2];  [1];  [3];  [1];  [1]
  1. Drexel Univ., Philadelphia, PA (United States)
  2. Drexel Univ., Philadelphia, PA (United States); Linköping Univ. (Sweden)
  3. Indiana Univ., Bloomington, IN (United States)

Ti3C2 and other two-dimensional transition metal carbides known as MXenes are currently being explored for many applications involving intercalated ions, from electrochemical energy storage, to contaminant sorption from water, to selected ion sieving. We report here a systematic investigation of ion exchange in Ti3C2 MXene and its hydration/dehydration behavior. We have investigated the effects of the presence of LiCl during the chemical etching of the MAX phase Ti3AlC2 into MXene Ti3C2Tx (T stands for surface termination) and found that the resulting MXene has Li+ cations in the interlayer space. We successfully exchanged the Li+ cations with K+, Na+, Rb+, Mg2+, and Ca2+ (supported by X-ray photoelectron and energy-dispersive spectroscopy) and found that the exchanged material expands on the unit-cell level in response to changes in humidity, with the nature of expansion dependent on the intercalated cation, similar to behavior of clay minerals; stepwise expansions of the basal spacing were observed, with changes consistent with the size of the H2O molecule. Thermogravimetric analysis of the dehydration behavior of these materials shows that the amounts of H2O contained at ambient humidity correlates simply with the hydration enthalpy of the intercalated cation, and that the diffusion of the exiting H2O proceeds with kinetics similar to clays. Furthermore, these results have implications for understanding, controlling, and exploiting structural changes and H2O sorption in MXene films and powders utilized in applications involving ions, such as electrochemical capacitors, sensors, reverse osmosis membranes, or contaminant sorbents.

Research Organization:
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:
ERKCC61; DMR-1310245; 283036-3304; 621-2014-4890
OSTI ID:
1388660
Journal Information:
Chemistry of Materials, Vol. 28, Issue 10; Related Information: FIRST partners with Oak Ridge National Laboratory (lead); Argonne National Laboratory; Drexel University; Georgia State University; Northwestern University; Pennsylvania State University; Suffolk University; Vanderbilt University; University of Virginia; ISSN 0897-4756
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 425 works
Citation information provided by
Web of Science

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High-Performance Ultrathin Flexible Solid-State Supercapacitors Based on Solution Processable Mo 1.33 C MXene and PEDOT:PSS journal November 2017
Anisotropic MXene Aerogels with a Mechanically Tunable Ratio of Electromagnetic Wave Reflection to Absorption journal March 2019
Effect of mixed surface terminations on the structural and electrochemical properties of two-dimensional Ti 3 C 2 T 2 and V 2 CT 2 MXenes multilayers journal January 2018
Beyond Graphene Anode Materials for Emerging Metal Ion Batteries and Supercapacitors journal October 2018
Fluorine-Free Synthesis of High-Purity Ti 3 C 2 T x (T=OH, O) via Alkali Treatment journal April 2018
Assembling 2D MXenes into Highly Stable Pseudocapacitive Electrodes with High Power and Energy Densities journal December 2018
In Situ Formed Protective Barrier Enabled by Sulfur@Titanium Carbide (MXene) Ink for Achieving High-Capacity, Long Lifetime Li-S Batteries journal July 2018
Recent advances in ternary two-dimensional materials: synthesis, properties and applications journal January 2017
A Strategy for Synthesis of Carbon Nitride Induced Chemically Doped 2D MXene for High-Performance Supercapacitor Electrodes journal January 2018
Antibacterial properties of electrospun Ti 3 C 2 T z (MXene)/chitosan nanofibers journal January 2018
Functional MXene Materials: Progress of Their Applications journal August 2018
Achieving High Pseudocapacitance of 2D Titanium Carbide (MXene) by Cation Intercalation and Surface Modification journal March 2017
Improving barium ion adsorption on two-dimensional titanium carbide by surface modification journal January 2018
Synergetic effects of K + and Mg 2+ ion intercalation on the electrochemical and actuation properties of the two-dimensional Ti 3 C 2 MXene journal January 2017
A hydrofluoric acid-free synthesis of 2D vanadium carbide (V 2 C) MXene for supercapacitor electrodes journal January 2020
Enhanced Li-Ion Accessibility in MXene Titanium Carbide by Steric Chloride Termination journal January 2017
Transparent, conductive solution processed spincast 2D Ti 2 CT x (MXene) films journal March 2017
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In situ hybridization of an MXene/TiO 2 /NiFeCo-layered double hydroxide composite for electrochemical and photoelectrochemical oxygen evolution journal January 2018
MXene‐Bonded Flexible Hard Carbon Film as Anode for Stable Na/K‐Ion Storage journal October 2019
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Electrochemical Behavior of Ti 3 C 2 T x MXene in Environmentally Friendly Methanesulfonic Acid Electrolyte journal August 2019
Enhanced electrocatalytic activity by chemical nitridation of two-dimensional titanium carbide MXene for hydrogen evolution journal January 2018
Alkali-induced crumpling of Ti 3 C 2 T x (MXene) to form 3D porous networks for sodium ion storage journal January 2018
Solvation‐Involved Nanoionics: New Opportunities from 2D Nanomaterial Laminar Membranes journal December 2019
Electronic and optical characterization of 2D Ti 2 C and Nb 2 C (MXene) thin films journal February 2019
Stimuli-Responsive 2D Materials Beyond Graphene journal August 2018
Recent progress in layered transition metal carbides and/or nitrides (MXenes) and their composites: synthesis and applications journal January 2017
Oxidation stability of Ti3C2Tx MXene nanosheets in solvents and composite films journal February 2019
High photoluminescence quantum yield of 18.7% by using nitrogen-doped Ti 3 C 2 MXene quantum dots journal January 2018
Revealing the Pseudo‐Intercalation Charge Storage Mechanism of MXenes in Acidic Electrolyte journal May 2019
Pressure-induced shear and interlayer expansion in Ti 3 C 2 MXene in the presence of water journal January 2018
Pristine Titanium Carbide MXene Films with Environmentally Stable Conductivity and Superior Mechanical Strength journal November 2019
Control of MXenes’ electronic properties through termination and intercalation journal January 2019
Recent Advances in Layered Ti 3 C 2 T x MXene for Electrochemical Energy Storage journal February 2018
Oxidized Ti 3 C 2 MXene nanosheets for dye-sensitized solar cells journal January 2018
Electrochromic Effect in Titanium Carbide MXene Thin Films Produced by Dip‐Coating journal February 2019
MXene‐Based Composites: Synthesis and Applications in Rechargeable Batteries and Supercapacitors journal February 2019
A highly flexible and sensitive piezoresistive sensor based on MXene with greatly changed interlayer distances journal October 2017
2 D MXene‐based Energy Storage Materials: Interfacial Structure Design and Functionalization journal March 2020
Hollow MXene Spheres and 3D Macroporous MXene Frameworks for Na-Ion Storage journal July 2017
Two‐dimensional MXenes for lithium‐sulfur batteries journal January 2020
Flexible MXene/Graphene Films for Ultrafast Supercapacitors with Outstanding Volumetric Capacitance journal June 2017
Highly fluorescent Ti 3 C 2 MXene quantum dots for macrophage labeling and Cu 2+ ion sensing journal January 2019
Preparation and characterization of polymer-Ti 3 C 2 T x (MXene) composite nanofibers produced via electrospinning : ARTICLE journal May 2017
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Fluorine-Free Synthesis of High-Purity Ti 3 C 2 T x (T=OH, O) via Alkali Treatment journal April 2018
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Effect of mixed surface terminations on the structural and electrochemical properties of two-dimensional Ti3C2T2 and V2CT2 MXenes multilayers text January 2018
In Situ High-Pressure X-ray Diffraction and Raman Spectroscopy Study of Ti3C2Tx MXene journal October 2018