MXene-Bonded Activated Carbon as a Flexible Electrode for High-Performance Supercapacitors

We report a strategy to employ two-dimensional Ti3C2Tx MXene as a flexible, conductive, and electrochemically active binder for one-step fabrication of MXene-bonded activated carbon as a flexible electrode for supercapacitors in an organic electrolyte. In this electrode, the activated carbon particles are encapsulated between the MXene layers, eliminating the need for insulative polymer binders. MXene plays a multifunctional role in the electrode, including as a binder, a flexible backbone, a conductive additive, and an additional active material. The synergetic effect of MXene and activated carbon constructs a three-dimensional conductive network and enlarges the distance between the MXene layers, greatly enhancing the electrode capacitance and rate capability. As a result, the flexible MXene-bonded activated carbon electrode exhibits a high capacitance of 126 F g–1 at 0.1 A g–1 and a retention of 57.9% at 100 A g–1 in an organic electrolyte, which is required for developing high-performance, flexible su...

[1]  Shuyan Gao,et al.  Chemical crosslinking engineered nitrogen-doped carbon aerogels from polyaniline-boric acid-polyvinyl alcohol gels for high-performance electrochemical capacitors , 2017 .

[2]  E. Xie,et al.  An overview of carbon materials for flexible electrochemical capacitors. , 2013, Nanoscale.

[3]  M. El‐Kady,et al.  Graphene-based materials for flexible supercapacitors. , 2015, Chemical Society reviews.

[4]  Nitin Choudhary,et al.  Recent Advances in Two-Dimensional Nanomaterials for Supercapacitor Electrode Applications , 2018 .

[5]  Rudolf Holze,et al.  Supercapacitors Based on Flexible Substrates: An Overview , 2014 .

[6]  Yury Gogotsi,et al.  Mxenes: A New Family of Two-Dimensional Materials and Its Application As Electrodes for Li and Na-Ion Batteries , 2015 .

[7]  Maher F. El-Kady,et al.  Graphene for batteries, supercapacitors and beyond , 2016 .

[8]  V. Presser,et al.  Carbons and Electrolytes for Advanced Supercapacitors , 2014, Advanced materials.

[9]  P. Taberna,et al.  Graphene-like carbide derived carbon for high-power supercapacitors , 2015 .

[10]  M. Yousaf,et al.  Novel Pliable Electrodes for Flexible Electrochemical Energy Storage Devices: Recent Progress and Challenges , 2016 .

[11]  Chang E. Ren,et al.  Flexible and conductive MXene films and nanocomposites with high capacitance , 2014, Proceedings of the National Academy of Sciences.

[12]  Gaoping Cao,et al.  Nitrogen-doped porous carbon simply prepared by pyrolyzing a nitrogen-containing organic salt for supercapacitors , 2013 .

[13]  Zhengguang Zou,et al.  Highly Stretchable and Self-Healable Supercapacitor with Reduced Graphene Oxide Based Fiber Springs. , 2017, ACS nano.

[14]  Yury Gogotsi,et al.  25th Anniversary Article: MXenes: A New Family of Two‐Dimensional Materials , 2014, Advanced materials.

[15]  Xiaokang Hu,et al.  A highly flexible and sensitive piezoresistive sensor based on MXene with greatly changed interlayer distances , 2017, Nature Communications.

[16]  Pierre-Louis Taberna,et al.  Capacitance of two-dimensional titanium carbide (MXene) and MXene/carbon nanotube composites in organic electrolytes , 2016 .

[17]  Liwei Liu,et al.  Powder, paper and foam of few-layer graphene prepared in high yield by electrochemical intercalation exfoliation of expanded graphite. , 2014, Small.

[18]  Bin Xu,et al.  Reduced graphene oxide as a multi-functional conductive binder for supercapacitor electrodes , 2018 .

[19]  Sang-Hoon Park,et al.  Transparent, Flexible, and Conductive 2D Titanium Carbide (MXene) Films with High Volumetric Capacitance , 2017, Advanced materials.

[20]  Gaoping Cao,et al.  What is the choice for supercapacitors: graphene or graphene oxide? , 2011 .

[21]  Feng Wu,et al.  Mesoporous activated carbon fiber as electrode material for high-performance electrochemical double layer capacitors with ionic liquid electrolyte , 2010 .

[22]  Yury Gogotsi,et al.  2D metal carbides and nitrides (MXenes) for energy storage , 2017 .

[23]  Yongyao Xia,et al.  Preparation of three-dimensional ordered mesoporous carbon sphere arrays by a two-step templating route and their application for supercapacitors , 2009 .

[24]  Yury Gogotsi,et al.  Guidelines for Synthesis and Processing of Two-Dimensional Titanium Carbide (Ti3C2Tx MXene) , 2017 .

[25]  Weijie Liu,et al.  A Flexible Integrated System Containing a Microsupercapacitor, a Photodetector, and a Wireless Charging Coil. , 2016, ACS nano.

[26]  Jiujun Zhang,et al.  Scalable synthesis of hierarchical macropore-rich activated carbon microspheres assembled by carbon nanoparticles for high rate performance supercapacitors , 2017 .

[27]  Namjo Jeong,et al.  Direct printing and reduction of graphite oxide for flexible supercapacitors , 2014 .

[28]  Siliang Wang,et al.  Highly Self-Healable 3D Microsupercapacitor with MXene-Graphene Composite Aerogel. , 2018, ACS nano.

[29]  Chang E. Ren,et al.  Porous heterostructured MXene/carbon nanotube composite paper with high volumetric capacity for sodium-based energy storage devices , 2016 .

[30]  F. Zhang,et al.  Revitalizing carbon supercapacitor electrodes with hierarchical porous structures , 2017 .

[31]  Volker Presser,et al.  Polyvinylpyrrolidone as binder for castable supercapacitor electrodes with high electrochemical performance in organic electrolytes , 2014 .

[32]  L. Kong,et al.  Flexible and free-standing 2D titanium carbide film decorated with manganese oxide nanoparticles as a high volumetric capacity electrode for supercapacitor , 2017 .

[33]  Qizhen Zhu,et al.  Facile synthesis of nitrogen-doped, hierarchical porous carbons with a high surface area: the activation effect of a nano-ZnO template , 2016 .

[34]  P. Taberna,et al.  Capacitance of Ti3C2Tx MXene in ionic liquid electrolyte , 2016 .

[35]  Yury Gogotsi,et al.  Pseudocapacitive Electrodes Produced by Oxidant‐Free Polymerization of Pyrrole between the Layers of 2D Titanium Carbide (MXene) , 2016, Advanced materials.

[36]  R. Seman,et al.  Systematic gap analysis of carbon nanotube-based lithium-ion batteries and electrochemical capacitors , 2017 .

[37]  Haitao Zhou,et al.  Boosted Supercapacitive Energy with High Rate Capability of aCarbon Framework with Hierarchical Pore Structure in an Ionic Liquid. , 2016, ChemSusChem.

[38]  Wei Liu,et al.  Flexible and Stretchable Energy Storage: Recent Advances and Future Perspectives , 2017, Advanced materials.

[39]  Y. Gogotsi,et al.  Atomic layer deposition of SnO2 on MXene for Li-ion battery anodes , 2017 .

[40]  F. Béguin,et al.  Effect of binder on the performance of carbon/carbon symmetric capacitors in salt aqueous electrolyte , 2014 .

[41]  Gaoping Cao,et al.  Ultramicroporous carbon as electrode material for supercapacitors , 2013 .

[42]  Y. Gogotsi,et al.  Materials for electrochemical capacitors. , 2008, Nature materials.