Atmospheric CO2 removal through direct air capture (DAC) may help restore CO2 concentrations to optimal levels, but slow CO2 uptake rates remain a major impediment. Now, an intensified DAC process has been demonstrated, involving enhanced CO2 capture rates and reactive K2CO3 crystallization at the interface of ultraconcentrated KOH solutions with air.
- Radu Custelcean
- Benjamin Doughty