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Title: Conductive two-dimensional titanium carbide ‘clay’ with high volumetric capacitance

Journal Article · · Nature (London)
DOI:https://doi.org/10.1038/nature13970· OSTI ID:1286827
 [1];  [1];  [1];  [1];  [1]
  1. Drexel Univ., Philadelphia, PA (United States). Department of Materials Science and Engineering, and A. J. Drexel Nanomaterials Institute

Safe and powerful energy storage devices are becoming increasingly important. Charging times of seconds to minutes, with power densities exceeding those of batteries, can in principle be provided by electrochemical capacitors—in particular, pseudocapacitors. Recent research has focused mainly on improving the gravimetric performance of the electrodes of such systems, but for portable electronics and vehicles volume is at a premium. The best volumetric capacitances of carbon-based electrodes are around 300 farads per cubic centimetre; hydrated ruthenium oxide can reach capacitances of 1,000 to 1,500 farads per cubic centimetre with great cyclability, but only in thin films. Recently, electrodes made of two-dimensional titanium carbide (Ti3C2, a member of the ‘MXene’ family), produced by etching aluminium from titanium aluminium carbide (Ti3AlC2, a ‘MAX’ phase) in concentrated hydrofluoric acid, have been shown to have volumetric capacitances of over 300 farads per cubic centimetre. In this paper, we report a method of producing this material using a solution of lithium fluoride and hydrochloric acid. The resulting hydrophilic material swells in volume when hydrated, and can be shaped like clay and dried into a highly conductive solid or rolled into films tens of micrometres thick. Additive-free films of this titanium carbide ‘clay’ have volumetric capacitances of up to 900 farads per cubic centimetre, with excellent cyclability and rate performances. In addition, this capacitance is almost twice that of our previous report, and our synthetic method also offers a much faster route to film production as well as the avoidance of handling hazardous concentrated hydrofluoric acid.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1286827
Journal Information:
Nature (London), Vol. 516, Issue 7529; ISSN 0028-0836
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 3468 works
Citation information provided by
Web of Science

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Atomic-level structure engineering of metal oxides for high-rate oxygen intercalation pseudocapacitance journal October 2018
An Inkjet Printed Ti 3 C 2 -GO Electrode for the Electrochemical Sensing of Hydrogen Peroxide journal January 2018
Review—Two-Dimensional Titanium Carbide MXenes and Their Emerging Applications as Electrochemical Sensors journal January 2020
Carbon-Coated SnO 2 /Ti 3 C 2 Composites with Enhanced Lithium Storage Performance journal October 2019
State of the Art in Alcohol Sensing with 2D Materials text January 2020
Environmental Stability of MXenes as Energy Storage Materials journal December 2019
Pseudocapacitive Electrodes Produced by Oxidant-Free Polymerization of Pyrrole between the Layers of 2D Titanium Carbide (MXene) journal December 2015
Stacked-Layer Heterostructure Films of 2D Thiophene Nanosheets and Graphene for High-Rate All-Solid-State Pseudocapacitors with Enhanced Volumetric Capacitance journal November 2016
Oxide Thin-Film Electronics using All-MXene Electrical Contacts journal February 2018
Atomic Cobalt Covalently Engineered Interlayers for Superior Lithium-Ion Storage journal June 2018
2D Superlattices for Efficient Energy Storage and Conversion journal July 2019
Heteroatom‐Mediated Interactions between Ruthenium Single Atoms and an MXene Support for Efficient Hydrogen Evolution journal October 2019
Transition Metal Carbides and Nitrides in Energy Storage and Conversion journal February 2017
Functional MXene Materials: Progress of Their Applications journal August 2018
Fluorination of MXene by Elemental F 2 as Electrode Material for Lithium‐Ion Batteries journal March 2019
MXene‐Based Nonlinear Optical Information Converter for All‐Optical Modulator and Switcher journal October 2018
Efficient storage mechanisms for building better supercapacitors journal May 2016
Extraordinary pseudocapacitive energy storage triggered by phase transformation in hierarchical vanadium oxides journal April 2018
Discovery of hexagonal ternary phase Ti2InB2 and its evolution to layered boride TiB journal May 2019
Novel inorganic tin phosphate gel: multifunctional material journal January 2018
2D MXene-containing polymer electrolytes for all-solid-state lithium metal batteries journal January 2019
Selective gas diffusion in two-dimensional MXene lamellar membranes: insights from molecular dynamics simulations journal January 2018
Electromagnetic interference shielding with 2D transition metal carbides (MXenes) journal September 2016
2D Ti3C2Tx (MXene)-reinforced polyvinyl alcohol (PVA) nanofibers with enhanced mechanical and electrical properties journal August 2017
Three-Dimensional Porous Ti3C2Tx-NiO Composite Electrodes with Enhanced Electrochemical Performance for Supercapacitors journal January 2019
Highly Conductive Optical Quality Solution-Processed Films of 2D Titanium Carbide journal April 2016
Pristine Titanium Carbide MXene Films with Environmentally Stable Conductivity and Superior Mechanical Strength journal November 2019
Porosity‐ and Graphitization‐Controlled Fabrication of Nanoporous Silicon@Carbon for Lithium Storage and Its Conjugation with MXene for Lithium‐Metal Anode journal December 2019
Rediscovering the Crystal Chemistry of Borides journal March 2017
Theranostic 2D Tantalum Carbide (MXene) journal December 2017
MXenes for Plasmonic Photodetection journal June 2019
Fast Gelation of Ti 3 C 2 T x MXene Initiated by Metal Ions journal September 2019
Flexible All-Solid-State Supercapacitors with High Volumetric Capacitances Boosted by Solution Processable MXene and Electrochemically Exfoliated Graphene journal November 2016
Achieving High Pseudocapacitance of 2D Titanium Carbide (MXene) by Cation Intercalation and Surface Modification journal March 2017
Emerging 2D Layered Materials for Perovskite Solar Cells journal April 2020
Regulating Fast Anionic Redox for High-Voltage Aqueous Hydrogen-Ion-based Energy Storage journal December 2018
Preparation and characterization of polymer-Ti 3 C 2 T x (MXene) composite nanofibers produced via electrospinning : ARTICLE journal May 2017
Enhanced mechanical properties of poly(lactic acid) composites with ultrathin nanosheets of MXene modified by stearic acid journal October 2019
Definitions of Pseudocapacitive Materials: A Brief Review journal March 2019
Tailoring Structure, Composition, and Energy Storage Properties of MXenes from Selective Etching of In-Plane, Chemically Ordered MAX Phases journal April 2018
Nanoengineering of 2D MXene‐Based Materials for Energy Storage Applications journal July 2019
Microsphere‐Like SiO 2 /MXene Hybrid Material Enabling High Performance Anode for Lithium Ion Batteries journal December 2019
Vacuum Filtration‐and‐Transfer Technique Helps Electrochemical Quartz Crystal Microbalance to Reveal Accurate Charge Storage in Supercapacitors journal May 2019
Two-dimensional MXene nanosheets (types Ti3C2Tx and Ti2CTx) as new ion-to-electron transducers in solid-contact calcium ion-selective electrodes journal November 2019
Two-dimensional Ti3C2Tx@S as cathode for room temperature sodium-sulfur batteries journal June 2019
Microfluidic-spinning construction of black-phosphorus-hybrid microfibres for non-woven fabrics toward a high energy density flexible supercapacitor journal November 2018
Hierarchical 3D electrodes for electrochemical energy storage journal December 2018
Anisotropic electronic conduction in stacked two-dimensional titanium carbide journal November 2015
Template-free 3D titanium carbide (Ti 3 C 2 T x ) MXene particles crumpled by capillary forces journal January 2017
Wearable energy sources based on 2D materials journal January 2018
Modified MXene: promising electrode materials for constructing Ohmic contacts with MoS 2 for electronic device applications journal January 2018
Two-dimensional stable transition metal carbides (MnC and NbC) with prediction and novel functionalizations journal January 2018
Liquid catalysts: an innovative solution to 2D materials in CVD processes journal January 2018
A generalized strategy for the synthesis of two-dimensional metal oxide nanosheets based on a thermoregulated phase transition journal January 2019
Tailoring Ti 3 C 2 T x nanosheets to tune local conductive network as an environmentally friendly material for highly efficient electromagnetic interference shielding journal January 2019
Hierarchically structured cellulose aerogels with interconnected MXene networks and their enhanced microwave absorption properties journal January 2018
Recent advances in micro-supercapacitors journal January 2019
Ti 3 C 2 MXene quantum dot-encapsulated liposomes for photothermal immunoassays using a portable near-infrared imaging camera on a smartphone journal January 2019
Ti 3 C 2 T x MXene-derived TiO 2 /C-QDs as oxidase mimics for the efficient diagnosis of glutathione in human serum journal January 2020
On the organization and thermal behavior of functional groups on Ti 3 C 2 MXene surfaces in vacuum journal October 2017
Elastic properties of 2D Ti 3 C 2 T x MXene monolayers and bilayers journal June 2018
Synergistic Supercritical Water ‘Wet’ Activated Biomass Carbon as High Performances Electrode Materials for Supercapacitor journal January 2018
Measurement and Analysis of Thermal Conductivity of Ti3C2Tx MXene Films journal September 2018
Highly Efficient Catalytic Performances of Nitro Compounds and Morin via Self-Assembled MXene-Pd Nanocomposites Synthesized through Self-Reduction Strategy journal July 2019
Transition Metal Carbides and Nitrides in Energy Storage and Conversion journal February 2016
Ultrathin electrochemically driven conducting polymer actuators: fabrication and electrochemomechanical characterization journal March 2018
MXenes as High-Rate Electrodes for Energy Storage journal July 2020
Amorphous Mo–Ta Oxide Nanotubes for Long-Term Stable Mo Oxide-Based Supercapacitors journal November 2019
Self-Assembled Multifunctional Hybrids: Toward Developing High-Performance Graphene-Based Architectures for Energy Storage Devices journal July 2015
Additive-Free MXene Liquid Crystals and Fibers journal February 2020
pH-Dependent Distribution of Functional Groups on Titanium-Based MXenes journal July 2019
Two-Dimensional Double Hydroxide Nanoarchitecture with High Areal and Volumetric Capacitance journal July 2018
Scalable salt-templated synthesis of two-dimensional transition metal oxides journal April 2016
Pseudocapacitance of MXene nanosheets for high-power sodium-ion hybrid capacitors journal April 2015
Ultrahigh volumetric capacitance and cyclic stability of fluorine and nitrogen co-doped carbon microspheres journal September 2015
Efficient and scalable synthesis of highly aligned and compact two-dimensional nanosheet films with record performances journal August 2018
Metallic porous nitride single crystals at two-centimeter scale delivering enhanced pseudocapacitance journal October 2019
A New Class of Scandium Carbide Nanosheet journal November 2019
Heating of Ti3C2Tx MXene/polymer composites in response to Radio Frequency fields journal November 2019
Efficient Control of THz Transmission of PEDOT:PSS with Resonant Nano-Metamaterials journal November 2019
A Smart Colorful Supercapacitor with One Dimensional Photonic Crystals journal December 2015
Pressure-induced shear and interlayer expansion in Ti 3 C 2 MXene in the presence of water journal January 2018
In Situ High-Pressure X-ray Diffraction and Raman Spectroscopy Study of Ti3C2Tx MXene journal October 2018
Photodynamic Therapy Based on Graphene and MXene in Cancer Theranostics journal October 2019
Three-Dimensional Architectures in Electrochemical Capacitor Applications – Insights, Opinions, and Perspectives journal September 2020
First-Principles Study of Vacancies in Ti3SiC2 and Ti3AlC2 journal January 2017
First-Principles Studies of Adsorptive Remediation of Water and Air Pollutants Using Two-Dimensional MXene Materials journal November 2018
A Facile Method to Construct MXene/CuO Nanocomposite with Enhanced Catalytic Activity of CuO on Thermal Decomposition of Ammonium Perchlorate journal December 2018
Preparation of Ti3C2Tx/NiZn Ferrite Hybrids with Improved Electromagnetic Properties journal February 2020
Deformation and Failure of MXene Nanosheets journal March 2020
Investigation of Fumed Silica/Aqueous NaCl Superdielectric Material journal February 2016
Printable Nanomaterials for the Fabrication of High-Performance Supercapacitors journal July 2018
Calculating the free energy of 2D materials on substrates text January 2019
Local chemical bonding and structural properties in Ti3AlC2 MAX phase and Ti3C2Tx MXene probed by Ti 1s X-ray absorption spectroscopy text January 2020
2D Superparamagnetic Tantalum Carbide Composite MXenes for Efficient Breast-Cancer Theranostics journal January 2018