H2O2 assisted room temperature oxidation of Ti2C MXene for Li-ion battery anodes
KAUST DepartmentMaterials Science and Engineering (MSE)
MetadataShow full item record
AbstractHerein we demonstrate that a prominent member of the MXene family, Ti2C, undergoes surface oxidation at room temperature when treated with hydrogen peroxide (H2O2). The H2O2 treatment results in opening up of MXene sheets and formation of TiO2 nanocrystals on their surface, which is evidenced by the high surface area of H2O2 treated MXene and X-ray diffraction (XRD) analysis. We show that the reaction time and the amount of hydrogen peroxide used are the limiting factors, which determine the morphology and composition of the final product. Furthermore, it is shown that the performance of H2O2 treated MXene as an anode material in Li ion batteries (LIBs) was significantly improved as compared to as-prepared MXenes. For instance, after 50 charge/discharge cycles, specific discharge capacities of 389 mA h g−1, 337 mA h g−1 and 297 mA h g−1 were obtained for H2O2 treated MXene at current densities of 100 mA g−1, 500 mA g−1 and 1000 mA g−1, respectively. In addition, when tested at a very high current density, such as 5000 mA g−1, the H2O2 treated MXene showed a specific capacity of 150 mA h g−1 and excellent rate capability. These results clearly demonstrate that H2O2 treatment of Ti2C MXene improves MXene properties in energy storage applications, such as Li ion batteries or capacitors.
CitationH2O2 assisted room temperature oxidation of Ti2C MXene for Li-ion battery anodes 2016 Nanoscale
SponsorsThis research was supported by King Abdullah University of Science and Technology under the KAUST-Drexel University Competitive Research Grant.
PublisherRoyal Society of Chemistry (RSC)
- Few-Layer MXenes Delaminated via High-Energy Mechanical Milling for Enhanced Sodium-Ion Batteries Performance.
- Authors: Wu Y, Nie P, Wang J, Dou H, Zhang X
- Issue date: 2017 Nov 15
- Sn⁴⁺ Ion Decorated Highly Conductive Ti3C2 MXene: Promising Lithium-Ion Anodes with Enhanced Volumetric Capacity and Cyclic Performance.
- Authors: Luo J, Tao X, Zhang J, Xia Y, Huang H, Zhang L, Gan Y, Liang C, Zhang W
- Issue date: 2016 Feb 23
- The facile synthesis of layered Ti<sub>2</sub>C MXene/carbon nanotube composite paper with enhanced electrochemical properties.
- Authors: Li L, Wang F, Zhu J, Wu W
- Issue date: 2017 Nov 7
- MXene as a Charge Storage Host.
- Authors: Okubo M, Sugahara A, Kajiyama S, Yamada A
- Issue date: 2018 Mar 20
- Two-Dimensional Vanadium Carbide (MXene) as a High-Capacity Cathode Material for Rechargeable Aluminum Batteries.
- Authors: VahidMohammadi A, Hadjikhani A, Shahbazmohamadi S, Beidaghi M
- Issue date: 2017 Nov 28