Journal article
Tuning the Electrochemical Performance of Titanium Carbide MXene by Controllable In Situ Anodic Oxidation
Angewandte Chemie (International ed.), v 58(49), pp 17849-17855
02 Dec 2019
PMID: 31574196
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
MXenes are a class of two-dimensional (2D) transition metal carbides, nitrides and carbonitrides that have shown promise for high-rate pseudocapacitive energy storage. However, the effects that irreversible oxidation have on the surface chemistry and electrochemical properties of MXenes are still not understood. Here we report on a controlled anodic oxidation method which improves the rate performance of titanium carbide MXene (Ti
C
T
T
refers to -F, =O, -Cl and -OH) electrodes in acidic electrolytes. The capacitance retention at 2000 mV s
(with respect to the lowest scan rate of 5 mV s
) increases gradually from 38 % to 66 % by tuning the degree of anodic oxidation. At the same time, a loss in the redox behavior of Ti
C
T
is evident at high anodic potentials after oxidation. Several analysis methods are employed to reveal changes in the structure and surface chemistry while simultaneously introducing defects, without compromising electrochemically active sites, are key factors for improving the rate performance of Ti
C
T
. This study demonstrates improvement of the electrochemical performance of MXene electrodes by performing a controlled anodic oxidation.
Metrics
Details
- Title
- Tuning the Electrochemical Performance of Titanium Carbide MXene by Controllable In Situ Anodic Oxidation
- Creators
- Jun Tang - School of Advanced Materials, Peking University Shenzhen Graduate School, Peking University, Shenzhen, Guangdong Province, 518055, P. R. ChinaTyler S Mathis - A.J. Drexel Nanomaterials Institute and Department of Materials Science and Engineering, Drexel University, Philadelphia, PA, 19104, USANarendra Kurra - A.J. Drexel Nanomaterials Institute and Department of Materials Science and Engineering, Drexel University, Philadelphia, PA, 19104, USAAsia Sarycheva - A.J. Drexel Nanomaterials Institute and Department of Materials Science and Engineering, Drexel University, Philadelphia, PA, 19104, USAXu Xiao - A.J. Drexel Nanomaterials Institute and Department of Materials Science and Engineering, Drexel University, Philadelphia, PA, 19104, USAMohamed N Hedhili - King Abdullah University of Science and Technology (KAUST), Core Labs, Thuwal, 23955-6900, Saudi ArabiaQiu Jiang - Materials Science and Engineering, Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi ArabiaHusam N Alshareef - Materials Science and Engineering, Physical Science and Engineering Division, King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi ArabiaBaomin Xu - Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, Guangdong Province, 518055, P. R. ChinaFeng Pan - School of Advanced Materials, Peking University Shenzhen Graduate School, Peking University, Shenzhen, Guangdong Province, 518055, P. R. ChinaYury Gogotsi - A.J. Drexel Nanomaterials Institute and Department of Materials Science and Engineering, Drexel University, Philadelphia, PA, 19104, USA
- Publication Details
- Angewandte Chemie (International ed.), v 58(49), pp 17849-17855
- Publisher
- Wiley; Germany
- Grant note
- URF/1/ 2963-01-01 / KAUST-Drexel Competitive Research Grant 2018 / China Scholarship Council U.S. Department of Energy
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000494097600001
- Scopus ID
- 2-s2.0-85074537547
- Other Identifier
- 991014877675304721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Chemistry, Multidisciplinary