Synthesis of CaCO$_3$@C yolk–shell particles for CO$_2$ adsorption
Résumé
We report the synthesis of CaCO$_3$@C yolk–shell particles with a microporous carbon shell through a selective etching method. The CaCO$_3$@C exhibits an enhanced CO$_2$ adsorption, relative to the porous CaCO$_3$ nanoparticles or the porous carbon shell, with a capacity of 19.30 cm$^3$ STP g$^{−1}$ (0.86 mmol g$^{−1}$ or 31.64 cm$^3$ STP cm$^{−3}$ sorbent) under ambient conditions (23 ± 1 °C and 1 atm CO$_2$).
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