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Title: Asymmetric Flexible MXene-Reduced Graphene Oxide Micro-Supercapacitor

Journal Article · · Advanced Electronic Materials
 [1];  [1]; ORCiD logo [1];  [2];  [1];  [3];  [1];  [4]; ORCiD logo [1]
  1. Drexel Univ., Philadelphia, PA (United States)
  2. Drexel Univ., Philadelphia, PA (United States); King Abdullah Univ. of Science and Technology (KAUST), Thuwal (Kingdom of Saudi Arabia)
  3. Drexel Univ., Philadelphia, PA (United States); CIC energiGUNE, Alava (Spain)
  4. King Abdullah Univ. of Science and Technology (KAUST), Thuwal (Kingdom of Saudi Arabia)

Abstract Current microfabrication of micro‐supercapacitors often involves multistep processing and delicate lithography protocols. In this study, simple fabrication of an asymmetric MXene‐based micro‐supercapacitor that is flexible, binder‐free, and current‐collector‐free is reported. The interdigitated device architecture is fabricated using a custom‐made mask and a scalable spray coating technique onto a flexible, transparent substrate. The electrode materials are comprised of titanium carbide MXene (Ti 3 C 2 T x ) and reduced graphene oxide (rGO), which are both 2D layered materials that contribute to the fast ion diffusion in the interdigitated electrode architecture. This MXene‐based asymmetric micro‐supercapacitor operates at a 1 V voltage window, while retaining 97% of the initial capacitance after ten thousand cycles, and exhibits an energy density of 8.6 mW h cm −3 at a power density of 0.2 W cm −3 . Further, these micro‐supercapacitors show a high level of flexibility during mechanical bending. Utilizing the ability of Ti 3 C 2 T x ‐MXene electrodes to operate at negative potentials in aqueous electrolytes, it is shown that using Ti 3 C 2 T x as a negative electrode and rGO as a positive one in asymmetric architectures is a promising strategy for increasing both energy and power densities of micro‐supercapacitors.

Research Organization:
Energy Frontier Research Centers (EFRC) (United States). Fluid Interface Reactions, Structures and Transport Center (FIRST); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1483176
Alternate ID(s):
OSTI ID: 1410379
Journal Information:
Advanced Electronic Materials, Vol. 4, Issue 1; ISSN 2199-160X
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 277 works
Citation information provided by
Web of Science

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Electrochromic Effect in Titanium Carbide MXene Thin Films Produced by Dip‐Coating journal February 2019
Recent Development of Printed Micro‐Supercapacitors: Printable Materials, Printing Technologies, and Perspectives journal April 2019
Doping Effects and Charge-Transfer Dynamics at Hybrid Perovskite/Graphene Interfaces journal August 2018
MXene‐Based Composites: Synthesis and Applications in Rechargeable Batteries and Supercapacitors journal February 2019
Direct Laser Etching Free‐Standing MXene‐MoS 2 Film for Highly Flexible Micro‐Supercapacitor journal September 2019
Graphene-Based Planar Microsupercapacitors: Recent Advances and Future Challenges journal October 2018
Hydrous RuO 2 ‐Decorated MXene Coordinating with Silver Nanowire Inks Enabling Fully Printed Micro‐Supercapacitors with Extraordinary Volumetric Performance journal February 2019
On‐Chip MXene Microsupercapacitors for AC‐Line Filtering Applications journal May 2019
Ti 3 C 2 T x (MXene)‐Silicon Heterojunction for Efficient Photovoltaic Cells journal July 2019
Antimonene Engineered Highly Deformable Freestanding Electrode with Extraordinarily Improved Energy Storage Performance journal October 2019
Advanced Electrode Materials Comprising of Structure‐Engineered Quantum Dots for High‐Performance Asymmetric Micro‐Supercapacitors journal January 2020
Selective Etching of Silicon from Ti 3 SiC 2 (MAX) To Obtain 2D Titanium Carbide (MXene) journal March 2018
Fabrication of Cobaltosic Oxide Nanoparticle‐Doped 3 D MXene/Graphene Hybrid Porous Aerogels for All‐Solid‐State Supercapacitors journal March 2019
Laser‐Cutting Fabrication of Mxene‐Based Flexible Micro‐Supercapacitors with High Areal Capacitance journal March 2019
Miniaturized Energy Storage Devices Based on Two‐Dimensional Materials journal March 2020
Recent Progress of MXene-Based Nanomaterials in Flexible Energy Storage and Electronic Devices journal December 2018
Laser-Assisted Large-Scale Fabrication of All-Solid-State Asymmetrical Micro-Supercapacitor Array journal August 2018
Automated Scalpel Patterning of Solution Processed Thin Films for Fabrication of Transparent MXene Microsupercapacitors journal October 2018
A Conductive and Highly Deformable All-Pseudocapacitive Composite Paper as Supercapacitor Electrode with Improved Areal and Volumetric Capacitance journal November 2018
An Ultrafast Conducting Polymer@MXene Positive Electrode with High Volumetric Capacitance for Advanced Asymmetric Supercapacitors journal December 2019
Recent Advances in Design of Flexible Electrodes for Miniaturized Supercapacitors journal February 2020
Electrodeposition of polypyrrole on He plasma etched carbon nanotube films for electrodes of flexible all-solid-state supercapacitor journal March 2019
Flexible asymmetric microsupercapacitor with high energy density based on all-graphene electrode system journal September 2019
Carbon nanotubes enhance flexible MXene films for high-rate supercapacitors journal September 2019
Review of MXenes as new nanomaterials for energy storage/delivery and selected environmental applications journal October 2018
Supercapacitors based on free-standing reduced graphene oxides/carbon nanotubes hybrid films journal November 2018
Flexible Ti 3 C 2 T x /PEDOT:PSS films with outstanding volumetric capacitance for asymmetric supercapacitors journal January 2019
Processing and manufacturing of graphene-based microsupercapacitors journal January 2018
Micro-supercapacitors based on oriented coordination polymer thin films for AC line-filtering journal January 2018
2D layered organic–inorganic heterostructures for clean energy applications journal January 2018
Reactive laser synthesis of nitrogen-doped hybrid graphene-based electrodes for energy storage journal January 2018
Spontaneous MXene monolayer assembly at the liquid–air interface journal January 2019
Fully inkjet printed ultrathin microsupercapacitors based on graphene electrodes and a nano-graphene oxide electrolyte journal January 2019
Insights into the thermal and chemical stability of multilayered V 2 CT x MXene journal January 2019
A high-performance trace level acetone sensor using an indispensable V 4 C 3 T x MXene journal January 2020
3D printing-based cellular microelectrodes for high-performance asymmetric quasi-solid-state micro-pseudocapacitors journal January 2020
Investigation on the Performance Improvement of Polyacrylonitrile-Derived Flexible Electrospun Carbon Nanofiber Mats journal September 2019
Selective Etching of Silicon from Ti 3 SiC 2 (MAX) To Obtain 2D Titanium Carbide (MXene) journal March 2018