Journal article
Enhancing the Energy Storage Capabilities of Ti3C2Tx MXene Electrodes by Atomic Surface Reduction
Advanced functional materials, v 31(52), pn/a
01 Dec 2021
Featured in Collection : UN Sustainable Development Goals @ Drexel
Abstract
MXenes are a large class of 2D materials that consist of few-atoms-thick layers of transition metal carbides, nitrides, or carbonitrides. The surface functionalization of MXenes has immense implications for their physical, chemical, and electronic properties. However, solution-phase surface functionalization often leads to structural degradation of the MXene electrodes. Here, a non-conventional, single-step atomic surface reduction (ASR) technique is adopted for the surface functionalization of MXene (Ti3C2Tx) in an atomic layer deposition reactor using trimethyl aluminum as a volatile reducing precursor. The chemical nature of the modified surface is characterized by X-ray photoelectron spectroscopy and nuclear magnetic resonance techniques. The electrochemical properties of the surface-modified MXene are evaluated in acidic and neutral aqueous electrolyte solutions, as well as in conventional Li-ion and Na-ion organic electrolytes. A considerable improvement in electrochemical performance is obtained for the treated electrodes in all the examined electrolyte solutions, expressed in superior rate capability and cycling stability compared to those of the non-treated MXene films. This improved electrochemical performance is attributed to the increased interlayer spacing and modified surface terminations after the ASR process.
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Details
- Title
- Enhancing the Energy Storage Capabilities of Ti3C2Tx MXene Electrodes by Atomic Surface Reduction
- Creators
- Arka Saha - Bar-Ilan UniversityNetanel Shpigel - Bar-Ilan UniversityRosy - Bar-Ilan UniversityNicole Leifer - Bar-Ilan UniversitySarah Taragin - Bar-Ilan UniversityTali Sharabani - Bar-Ilan UniversityHagit Aviv - Bar-Ilan UniversityIlana Perelshtein - Bar-Ilan UniversityGilbert Daniel Nessim - Bar-Ilan UniversityMalachi Noked - Bar-Ilan UniversityYury Gogotsi - Drexel University
- Publication Details
- Advanced functional materials, v 31(52), pn/a
- Publisher
- Wiley
- Number of pages
- 10
- Grant note
- ISF 2797/11 / Israel Prime Minister's Office for Alternative Initiatives under the Israel Research center for Electrochemical Propulsion (INREP) Israel Academy of Sciences and Humanities Carbon Ukraine Israeli Council of Higher Education for the Fellowship Planning and Budgeting Committee (PBC) of the Council for Higher Education, Isreal for the Post doctoral fellowship FIRST Energy Frontier Research Center Israel Science Foundation
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Materials Science and Engineering
- Web of Science ID
- WOS:000700834700001
- Scopus ID
- 2-s2.0-85115827731
- Other Identifier
- 991019167532404721
UN Sustainable Development Goals (SDGs)
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Chemistry, Multidisciplinary
- Chemistry, Physical
- Materials Science, Multidisciplinary
- Nanoscience & Nanotechnology
- Physics, Applied
- Physics, Condensed Matter