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Cation Intercalation and High Volumetric Capacitance of Two-Dimensional Titanium Carbide

Lukatskaya, Maria R. and Mashtalir, Olha and Ren, Chang E. and Dall’Agnese, Yohan and Rozier, Patrick and Taberna, Pierre-Louis and Naguib, Michael and Simon, Patrice and Barsoum, Michel W. and Gogotsi, Yury Cation Intercalation and High Volumetric Capacitance of Two-Dimensional Titanium Carbide. (2013) Science Magazine, 341 (6153). 1502-1505. ISSN 0036-8075

(Document in English)

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Official URL: http://dx.doi.org/10.1126/science.1241488


The intercalation of ions into layered compounds has long been exploited in energy storage devices such as batteries and electrochemical capacitors. However, few host materials are known for ions much larger than lithium. We demonstrate the spontaneous intercalation of cations from aqueous salt solutions between two-dimensional (2D) Ti3C2 MXene layers. MXenes combine 2D conductive carbide layers with a hydrophilic, primarily hydroxyl-terminated surface. A variety of cations, including Na+, K+, NH4+, Mg2+, and Al3+, can also be intercalated electrochemically, offering capacitance in excess of 300 farads per cubic centimeter (much higher than that of porous carbons). This study provides a basis for exploring a large family of 2D carbides and carbonitrides in electrochemical energy storage applications using single- and multivalent ions.

Item Type:Article
Additional Information:Thanks to the American Association for the Advancement of Science. The definitive version is available at http://www.sciencemag.org The original PDF of the article can be found at Science website : http://www.sciencemag.org/content/341/6153/1502
HAL Id:hal-01157516
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Other partners > Drexel University (USA)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Other partners > Réseau de stockage électrochimique de l’énergie - Energie RS2E (FRANCE)
Laboratory name:
European Research Council
Deposited On:28 May 2015 08:12

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