TY - JOUR
T1 - Carbon Dioxide Sequestration by Triboelectric Charging of Tumbling Quartz Sand
AU - Bregnhøj, Mikkel
AU - Jensen, Svend J.Knak
AU - Strunge, Kris
AU - Nielsen, Anders Bodholt
AU - Thøgersen, Jan
AU - Nørnberg, Per
AU - Skibsted, Jørgen
AU - Finster, Kai
PY - 2023/6
Y1 - 2023/6
N2 - Mechanical activation (i.e., tumbling) of quartz sand in a carbon dioxide (CO2) atmosphere leads to triboelectric charging of the sand grains, driving a process that ultimately sequesters and removes CO2 from the ambient atmosphere. Supported by diffuse reflectance FTIR and 13C solid-state NMR experiments and density functional theory (DFT) calculations, we propose that CO2 is inserted into the quartz lattice to form an anchored CO3 species, a process that otherwise requires high temperature and pressure to proceed synthetically. The products of the reaction are stable for at least 6 months at ambient temperature and pressure, but CO2 is liberated at temperatures above 150 °C. The prospect of using this method to remove CO2 from the atmosphere and, ultimately, to help mitigate the adverse effects of greenhouse gases and global warming is briefly discussed.
AB - Mechanical activation (i.e., tumbling) of quartz sand in a carbon dioxide (CO2) atmosphere leads to triboelectric charging of the sand grains, driving a process that ultimately sequesters and removes CO2 from the ambient atmosphere. Supported by diffuse reflectance FTIR and 13C solid-state NMR experiments and density functional theory (DFT) calculations, we propose that CO2 is inserted into the quartz lattice to form an anchored CO3 species, a process that otherwise requires high temperature and pressure to proceed synthetically. The products of the reaction are stable for at least 6 months at ambient temperature and pressure, but CO2 is liberated at temperatures above 150 °C. The prospect of using this method to remove CO2 from the atmosphere and, ultimately, to help mitigate the adverse effects of greenhouse gases and global warming is briefly discussed.
UR - http://www.scopus.com/inward/record.url?scp=85163558902&partnerID=8YFLogxK
U2 - 10.1021/acs.jpcc.3c02008
DO - 10.1021/acs.jpcc.3c02008
M3 - Journal article
AN - SCOPUS:85163558902
SN - 1932-7447
VL - 127
SP - 12008
EP - 12015
JO - Journal of Physical Chemistry C
JF - Journal of Physical Chemistry C
IS - 25
ER -