Journal article
Effect of glycine functionalization of 2D titanium carbide (MXene) on charge storage
Journal of materials chemistry. A, Materials for energy and sustainability, v 6(11), pp 4617-4622
2018
Abstract
Restacking of two-dimensional (2D) flakes reduces the accessibility of electrolyte ions and is a problem in energy storage and other applications. Organic molecules can be used to prevent restacking and keep the interlayer space open. Here, we report on a combined theoretical and experimental investigation of the interaction between 2D titanium carbide (MXene), Ti3C2Tx, and glycine. From first principle calculations, we presented the functionalization of glycine on the Ti3C2O2surface, evidenced by the shared electrons between Ti and N atoms. To experimentally validate our predictions, we synthesized flexible freestanding films of Ti3C2Tx/glycine hybrids. X-ray diffraction and X-ray photoelectron spectroscopy confirmed the increased interlayer spacing and possible Ti–N bonding, respectively, which agree with our theoretical predictions. The Ti3C2Tx/glycine hybrid films exhibited an improved rate and cycling performances compared to pristine Ti3C2Tx, possibly due to better charge percolation within expanded Ti3C2Tx.
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128 citations in Scopus
Details
- Title
- Effect of glycine functionalization of 2D titanium carbide (MXene) on charge storage
- Creators
- Chi Chen - A.J. Drexel Nanomaterials Institute, Materials Science and Engineering Department, Drexel University, Philadelphia, USAMuhammad Boota - A.J. Drexel Nanomaterials Institute, Materials Science and Engineering Department, Drexel University, Philadelphia, USAPatrick Urbankowski - A.J. Drexel Nanomaterials Institute, Materials Science and Engineering Department, Drexel University, Philadelphia, USABabak Anasori - A.J. Drexel Nanomaterials Institute, Materials Science and Engineering Department, Drexel University, Philadelphia, USALing Miao - School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, People's Republic of ChinaJianjun Jiang - School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, People's Republic of ChinaYury Gogotsi - A.J. Drexel Nanomaterials Institute, Materials Science and Engineering Department, Drexel University, Philadelphia, USA
- Publication Details
- Journal of materials chemistry. A, Materials for energy and sustainability, v 6(11), pp 4617-4622
- Publisher
- Royal Society of Chemistry
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Scopus ID
- 2-s2.0-85043765474
- Other Identifier
- 991014877801604721