[en] Carbon dioxide (CO2) capture under elevated pressure conditions is of particular relevance for pre-combustion capture and syngas purification processes. Here, we report CO2 adsorption in a nickel-intercalated titanium carbide Ni-Ti3C2Tx MXene-fluorohectorite clay heterostructure, designed to modify the high-pressure adsorption behavior characteristic of pristine MXenes. The heterostructure exhibits a CO2 adsorption capacity of 1.909 mmol g-1 at 50 bar and retains measurable uptake upon pressure release, with 0.602 mmol g-1 remaining at 1 bar after desorption. These results indicate that MXene-clay heterostructures are promising candidates for high-pressure CO2 separation, while also providing a platform for future exploration of CO2 conversion strategies beyond the scope of the present study.
Disciplines :
Energy Chemical engineering
Author, co-author :
Pacakova, Barbara ; Dept. of Physics, Norwegian University of Science and Technology, Høgskoleringen 5, 7034 Trondheim, Norway
Thakur, Anupma ; School of Materials Engineering, Purdue University, West Lafayette, IN 47907, USA
B S, Nithin Chandran ; School of Materials Engineering, Purdue University, West Lafayette, IN 47907, USA
HEYMANS, Nicolas ; Université de Mons - UMONS > Faculté Polytechnique > Service de Thermodynamique, Physique mathématiques
Matulkova, Irena ; Charles University, Faculty of Science, Department of Inorganic Chemistry, Hlavova 8, 128 40 Prague 2, Czech Republic
Demchenko, Hanna ; Dept. of Physics, Norwegian University of Science and Technology, Høgskoleringen 5, 7034 Trondheim, Norway
Sexton, Alexander Harold ; Dept. of Physics, Norwegian University of Science and Technology, Høgskoleringen 5, 7034 Trondheim, Norway ; DPI, P.O. Box 902, 5600 AX Eindhoven, The Netherlands
Hunvik, Kristoffer William Bø ; Dept. of Physics, Norwegian University of Science and Technology, Høgskoleringen 5, 7034 Trondheim, Norway
DE WEIRELD, Guy ; Université de Mons - UMONS > Faculté Polytechnique > Service de Thermodynamique, Physique mathématiques
Anasori, Babak ; School of Materials Engineering, Purdue University, West Lafayette, IN 47907, USA ; School of Mechanical Engineering, Purdue University, West Lafayette, IN 47907, USA
Raaen, Steinar ; Dept. of Physics, Norwegian University of Science and Technology, Høgskoleringen 5, 7034 Trondheim, Norway
Fossum, Jon Otto ; Dept. of Physics, Norwegian University of Science and Technology, Høgskoleringen 5, 7034 Trondheim, Norway ; SCML International, Karl Johans gate 25, 0159 Oslo, Norway
Language :
English
Title :
High capture capacity of CO2 in a nickel intercalated Ti3C2Tx MXene-fluorohectorite clay heterostructure.
