Journal article
Boosting Performance of Na-S Batteries Using Sulfur-Doped Ti3C2Tx MXene Nanosheets with a Strong Affinity to Sodium Polysulfides
ACS nano, v 13(10), pp 11500-11509
22 Oct 2019
PMID: 31532639
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
Sodium-sulfur batteries using abundant elements offer an attractive alternative to currently used batteries, but they need better sulfur host materials to compete with lithium-ion batteries in capacity and cyclability. We report an in situ sulfur-doping strategy to functionalize MXene nanosheets by introducing heteroatomic sulfur into the MXene structure form the MAX phase precursor. By employing the vacuum freeze-drying method, a three-dimensional (3D) wrinkled MXene nanoarchitecture with the high specific surface area was prepared. The tailor-made wrinkled sulfur-doped MXene (S-Ti3C2Tx) nanosheets were applied as an electrode host material in room temperature sodium-sulfur batteries. The S-Ti3C2Tx matrix shows high polarity with sodium polysulfides, restricting the diffusion of sodium polysulfides. The MXene/sulfur electrode can achieve high areal sulfur loading up to 4.5 mg cm(-2) as well as good electrochemical performance (reversible capacity of 577 mAh g(-1) at 2 C after 500 cycles).
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Details
- Title
- Boosting Performance of Na-S Batteries Using Sulfur-Doped Ti3C2Tx MXene Nanosheets with a Strong Affinity to Sodium Polysulfides
- Creators
- Weizhai Bao - Univ Technol Sydney Broadway, Fac Sci, Ctr Clean Energy Technol, Sydney, NSW 2007, AustraliaChristopher E. Shuck - Drexel University, Materials Science and EngineeringWenxue Zhang - Changan Univ, Sch Mat Sci & Engn, Xian 710064, Shaanxi, Peoples R ChinaXin Guo - Univ Technol Sydney Broadway, Fac Sci, Ctr Clean Energy Technol, Sydney, NSW 2007, AustraliaYury Gogotsi - Drexel University, Materials Science and EngineeringGuoxiu Wang - Univ Technol Sydney Broadway, Fac Sci, Ctr Clean Energy Technol, Sydney, NSW 2007, Australia
- Publication Details
- ACS nano, v 13(10), pp 11500-11509
- Publisher
- Amer Chemical Soc
- Number of pages
- 10
- Grant note
- DP160104340; DP170100436; DP180102297 / Australian Research Council through the ARC Discovery projects; Australian Research Council RMCRC1.1.2; RMCRC1.1.1 / Rail Manufacturing Cooperative Research Centre projects
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000492801600060
- Scopus ID
- 2-s2.0-85072920066
- Other Identifier
- 991014877682304721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Chemistry, Multidisciplinary
- Chemistry, Physical
- Materials Science, Multidisciplinary
- Nanoscience & Nanotechnology