Transport is one of the most difficult sectors to decarbonise and will require additional mitigation strategies in order to achieve net zero targets. On-board carbon capture is a promising solution that can be retrofitted to fossil fuel-powered vehicles, enabling existing transport to be decarbonised to facilitate a net zero future.

To apply on-board carbon capture, the technology should possess a high CO₂ capture performance, be cost-effective and be able to capture low CO₂ concentrations. A compact technology that can improve process performance is the hollow fibre adsorption unit, which is the focus of my research. Hollow fibres have a distinctive structure in which hundreds of open, conically-shaped micro-channels are perpendicularly distributed around an empty channel. By depositing a CO₂ adsorbent as a thin coating inside these micro-channels, a compact and cost-effective system can be achieved.
The hollow fibre adsorption system is more compact, more cost-effective and has a better CO₂ capture performance than traditional adsorption systems, such that it can be feasibly implemented on-board both small and large vehicles.