Thick and freestanding MXene/PANI pseudocapacitive electrodes with ultrahigh specific capacitance

被引:332
作者
VahidMohammadi, Armin [1 ]
Moncada, Jorge [2 ]
Chen, Hengze [1 ]
Kayali, Emre [1 ]
Orangi, Jafar [1 ]
Carrero, Carlos A. [2 ]
Beidaghi, Majid [1 ]
机构
[1] Auburn Univ, Dept Mech & Mat Engn, Auburn, AL 36849 USA
[2] Auburn Univ, Dept Chem Engn, Auburn, AL 36849 USA
关键词
ELECTROCHEMICAL ENERGY-STORAGE; TRANSITION-METAL CARBIDES; COMPOSITE PAPER; GRAPHENE OXIDE; POLYMERIZATION; PERFORMANCE; NANOCOMPOSITES; INTERCALATION; MULTILAYERS; FABRICATION;
D O I
10.1039/c8ta05807e
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Two-dimensional (2D) titanium carbide MXene (Ti3C2Tx) has shown great promise as a high-performance electrode material for electrochemical capacitors (ECs). However, similar to other 2D materials, processing MXenes into freestanding films results in their restacking, thus decreasing the ion transport inside the electrodes. This problem significantly hinders the specific capacitance and rate capability of freestanding electrodes, particularly for those with thicknesses higher than a few microns. Here, we demonstrate a strategy based on surface modification of MXene sheets to fabricate electrodes with highly accessible structure and improved electrochemical performance even at very high electrode thicknesses. 2D Ti3C2Tx and polyaniline (PANI) hybrid materials were synthesized through oxidant-free in situ polymerization of PANI on the surface of MXene sheets and were assembled into freestanding films with various thicknesses. Thin MXene/PANI hybrid electrodes delivered outstanding gravimetric and volumetric capacitances as high as 503 F g(-1) and 1682 F cm(-3), respectively. As the electrode thicknesses and mass loadings were increased, the hybrid electrodes still showed high electrochemical performance. For example, an electrode with a thickness of 90 mm and a mass loading of 23.82 mg cm(-2) could deliver a specific capacitance of about 336 F g(-1) (similar to 888 F cm(-3) volumetric capacitance). The hybrid electrodes also showed a high cycle lifetime with a capacitance retention of 98.3% after 10 000 cycles. This paper explains a simple and fast approach for the fabrication of MXenes/conducting polymer hybrid electrodes with superior electrochemical performance.
引用
收藏
页码:22123 / 22133
页数:11
相关论文
共 45 条
[1]   Guidelines for Synthesis and Processing of Two-Dimensional Titanium Carbide (Ti3C2TX MXene) [J].
Alhabeb, Mohamed ;
Maleski, Kathleen ;
Anasori, Babak ;
Lelyukh, Pavel ;
Clark, Leah ;
Sin, Saleesha ;
Gogotsi, Yury .
CHEMISTRY OF MATERIALS, 2017, 29 (18) :7633-7644
[2]   2D metal carbides and nitrides (MXenes) for energy storage [J].
Anasori, Babak ;
Lukatskaya, Maria R. ;
Gogotsi, Yury .
NATURE REVIEWS MATERIALS, 2017, 2 (02)
[3]   Two-Dimensional, Ordered, Double Transition Metals Carbides (MXenes) [J].
Anasori, Babak ;
Xie, Yu ;
Beidaghi, Majid ;
Lu, Jun ;
Hosler, Brian C. ;
Hultman, Lars ;
Kent, Paul R. C. ;
Gogotsi, Yury ;
Barsoum, Michel W. .
ACS NANO, 2015, 9 (10) :9507-9516
[4]  
Augustyn V, 2013, NAT MATER, V12, P518, DOI [10.1038/NMAT3601, 10.1038/nmat3601]
[5]  
Bao W., 2018, JOULE, V3, P1
[6]   Capacitive energy storage in micro-scale devices: recent advances in design and fabrication of micro-supercapacitors [J].
Beidaghi, Majid ;
Gogotsi, Yury .
ENERGY & ENVIRONMENTAL SCIENCE, 2014, 7 (03) :867-884
[7]   Progress in preparation, processing and applications of polyaniline [J].
Bhadra, Sambhu ;
Khastgir, Dipak ;
Singha, Nikhil K. ;
Lee, Joong Hee .
PROGRESS IN POLYMER SCIENCE, 2009, 34 (08) :783-810
[8]   Pseudocapacitive Electrodes Produced by Oxidant-Free Polymerization of Pyrrole between the Layers of 2D Titanium Carbide (MXene) [J].
Boota, Muhammad ;
Anasori, Babak ;
Voigt, Cooper ;
Zhao, Meng-Qiang ;
Barsoum, Michel W. ;
Gogotsi, Yury .
ADVANCED MATERIALS, 2016, 28 (07) :1517-1522
[9]   Lithium-ion capacitors with 2D Nb2CTx (MXene) - carbon nanotube electrodes [J].
Byeon, Ayeong ;
Glushenkov, Alexey M. ;
Anasori, Babak ;
Urbankowski, Patrick ;
Li, Jingwen ;
Byles, Bryan W. ;
Blake, Brian ;
Van Aken, Katherine L. ;
Kota, Sankalp ;
Pomerantseva, Ekaterina ;
Lee, Jae W. ;
Chen, Ying ;
Gogotsi, Yury .
JOURNAL OF POWER SOURCES, 2016, 326 :686-694
[10]   Charge transfer induced polymerization of EDOT confined between 2D titanium carbide layers [J].
Chen, Chi ;
Boota, Muhammad ;
Xie, Xiuqiang ;
Zhao, Mengqiang ;
Anasori, Babak ;
Ren, Chang E. ;
Miao, Ling ;
Jiang, Jianjun ;
Gogotsi, Yury .
JOURNAL OF MATERIALS CHEMISTRY A, 2017, 5 (11) :5260-5265