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Two-Dimensional Nb-Based M4C3 Solid Solutions (MXenes)
Drexel University, PA 19104 USA; Drexel University, PA 19104 USA; Nanjing Technical University, Peoples R China.
Oak Ridge National Lab, TN 37381 USA.
Drexel University, PA 19104 USA;.
Nanjing Technical University, Peoples R China.
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2016 (English)In: Journal of The American Ceramic Society, ISSN 0002-7820, E-ISSN 1551-2916, Vol. 99, no 2, 660-666 p.Article in journal (Refereed) PublishedText
Abstract [en]

Herein, two new two-dimensional Nb4C3-based solid solutions (MXenes), (Nb-0.8,Ti-0.2)(4)C3Tx and (Nb-0.8,Zr-0.2)(4)C3Tx (where T is a surface termination) were synthesizedas confirmed by X-ray diffractionfrom their corresponding MAX phase precursors (Nb-0.8,Ti-0.2)(4)AlC3 and (Nb-0.8,Zr-0.2)(4)AlC3. This is the first report on a Zr-containing MXene. Intercalation of Li ions into these two compositions, and Nb4C3Tx was studied to determine the potential of those materials for energy storage applications. Lithiation and delithiation peaks at 2.26 and 2.35 V, respectively, appeared in the case of Nb4C3Tx, but were not present in Nb2CTx. After 20 cycles at a rate of C/4, the specific capacities of (Nb-0.8,Ti-0.2)(4)C3Tx and (Nb-0.8,Zr-0.2)(4)C3Tx were 158 and 132 mAh/g, respectively, both slightly lower than the capacity of Nb4C3Tx.

Place, publisher, year, edition, pages
WILEY-BLACKWELL , 2016. Vol. 99, no 2, 660-666 p.
National Category
Materials Engineering
URN: urn:nbn:se:liu:diva-125820DOI: 10.1111/jace.13922ISI: 000369836600041OAI: diva2:910245

Funding Agencies|U.S. National Science Foundation (NSF) [DMR-1310245]; Jiangsu Government; Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD); Program for Chang Jiang Scholars and Innovative Research Team in University (PCSIRT) [IRT1146]; Laboratory Directed Research and Development Program of Oak Ridge National Laboratory; Office of Vehicle Technology under Energy Efficiency and Renewable Energy, Department of Energy; Swedish Research Council [621-2011-4420, 621-2014-4890]; Swedish Foundation for Strategic Research through Synergy Grant FUNCASE Functional Carbides for Advanced Surface Engineering

Available from: 2016-03-08 Created: 2016-03-04 Last updated: 2016-03-08

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Thin Film PhysicsFaculty of Science & Engineering
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