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2D Transition Metal Carbides (MXenes) for Carbon Capture
Author(s) -
Persson Ingemar,
Halim Joseph,
Lind Hans,
Hansen Thomas W.,
Wagner Jakob B.,
Näslund LarsÅke,
Darakchieva Vanya,
Palisaitis Justinas,
Rosen Johanna,
Persson Per O. Å.
Publication year - 2019
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201805472
Subject(s) - mxenes , carbide , materials science , adsorption , carbon fibers , transition metal , selectivity , thermal stability , chemical stability , chemical engineering , fossil fuel , metal , nanotechnology , metallurgy , organic chemistry , composite material , chemistry , composite number , engineering , catalysis
Global warming caused by burning of fossil fuels is indisputably one of mankind's greatest challenges in the 21st century. To reduce the ever‐increasing CO 2 emissions released into the atmosphere, dry solid adsorbents with large surface‐to‐volume ratio such as carbonaceous materials, zeolites, and metal–organic frameworks have emerged as promising material candidates for capturing CO 2 . However, challenges remain because of limited CO 2 /N 2 selectivity and long‐term stability. The effective adsorption of CO 2 gas (≈12 mol kg −1 ) on individual sheets of 2D transition metal carbides (referred to as MXenes) is reported here. It is shown that exposure to N 2 gas results in no adsorption, consistent with first‐principles calculations. The adsorption efficiency combined with the CO 2 /N 2 selectivity, together with a chemical and thermal stability, identifies the archetype Ti 3 C 2 MXene as a new material for carbon capture (CC) applications.