Lukatskaya, MR;
Mashtalir, O;
Ren, CE;
Dall'Agnese, Y;
Rozier, P;
Taberna, PL;
Naguib, M;
... Gogotsi, Y; + view all
(2013)
Cation Intercalation and High Volumetric Capacitance of Two-Dimensional Titanium Carbide.
Science
, 341
(6153)
pp. 1502-1505.
10.1126/science.1241488.
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Abstract
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.
| Type: | Article |
|---|---|
| Title: | Cation Intercalation and High Volumetric Capacitance of Two-Dimensional Titanium Carbide |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1126/science.1241488 |
| Publisher version: | https://doi.org/10.1126/science.1241488 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > MAPS Faculty Office UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > MAPS Faculty Office > Institute for Materials Discovery |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10076109 |
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