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Title: Effect of metal ion intercalation on the structure of MXene and water dynamics on its internal surfaces

Journal Article · · ACS Applied Materials and Interfaces
 [1];  [1];  [2];  [1];  [3];  [1];  [1];  [3];  [1];  [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Pennsylvania State Univ., University Park, PA (United States)
  3. Drexel Univ., Philadelphia, PA (United States)

MXenes are a recently discovered class of 2D materials with an excellent potential for energy storage applications. Because MXene surfaces are hydrophilic and attractive interaction forces between the layers are relatively weak, water molecules can spontaneously intercalate at ambient humidity and significantly influence the key properties of this 2D material. Using complementary X-ray and neutron scattering techniques, we demonstrate that intercalation with potassium cations significantly improves structural homogeneity and water stability in MXenes. Furthermore, in agreement with molecular dynamics simulations, intercalated potassium ions reduce the water self-diffusion coefficient by 2 orders of magnitude, suggesting greater stability of hydrated MXene against changing environmental conditions.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); 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:
1261340
Journal Information:
ACS Applied Materials and Interfaces, Vol. 8, Issue 14; ISSN 1944-8244
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 186 works
Citation information provided by
Web of Science

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Cited By (30)

2D metal carbides and nitrides (MXenes) for energy storage journal January 2017
Two‐Dimensional Transition Metal Carbides and Nitrides (MXenes): Synthesis, Properties, and Electrochemical Energy Storage Applications journal March 2020
Interfacial water intercalation-induced metal-insulator transition in NbS 2 /BN heterostructure journal March 2019
Pressure-induced shear and interlayer expansion in Ti 3 C 2 MXene in the presence of water journal January 2018
Assembling 2D MXenes into Highly Stable Pseudocapacitive Electrodes with High Power and Energy Densities journal December 2018
Recent Advances in Layered Ti 3 C 2 T x MXene for Electrochemical Energy Storage journal February 2018
A comparative study on the oxidation of two-dimensional Ti 3 C 2 MXene structures in different environments journal January 2018
In situ atomistic insight into the growth mechanisms of single layer 2D transition metal carbides journal June 2018
MXene: an emerging two-dimensional material for future energy conversion and storage applications journal January 2017
Cation Molecular Structure Affects Mobility and Transport of Electrolytes in Porous Carbons journal January 2019
Functional MXene Materials: Progress of Their Applications journal August 2018
Ti 3 C 2 MXenes modified with in situ grown carbon nanotubes for enhanced electromagnetic wave absorption properties journal January 2017
Cobalt Oxide Materials for Oxygen Evolution Catalysis via Single-Source Precursor Chemistry journal August 2018
MXenes and ultrasonication journal January 2019
MXene‐Based Composites: Synthesis and Applications in Rechargeable Batteries and Supercapacitors journal February 2019
Insights into the thermal and chemical stability of multilayered V 2 CT x MXene journal January 2019
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
Promoting Role of MXene Nanosheets in Biomedical Sciences: Therapeutic and Biosensing Innovations journal October 2018
Topochemical synthesis of 2D materials journal January 2018
Functionalization of 2D materials for enhancing OER/ORR catalytic activity in Li–oxygen batteries journal August 2019
2 D MXene‐based Energy Storage Materials: Interfacial Structure Design and Functionalization journal March 2020
Oxidation-resistant titanium carbide MXene films journal January 2020
Recent advances in inorganic 2D materials and their applications in lithium and sodium batteries journal January 2017
Rational control of the interlayer space inside two-dimensional titanium carbides for highly efficient uranium removal and imprisonment journal January 2017
Influence of metal ions intercalation on the vibrational dynamics of water confined between MXene layers journal November 2017
Mechanical response of all-MoS 2 single-layer heterostructures: a ReaxFF investigation journal January 2016
Microscopic dynamics in room-temperature ionic liquids confined in materials for supercapacitor applications journal January 2020
Thermal stability of two-dimensional titanium carbides Tin+1Cn (MXenes) from classical molecular dynamics simulations journal January 2019
Local probe of the interlayer coupling strength of few-layers SnSe by contact-resonance atomic force microscopy preprint January 2020