Nature Energy: reactive CO2 capture viable at today's selectivity if barriers fall

Conventional carbon capture spends most of its energy undoing itself. An amine solvent grabs CO2 from a flue stream, and then you heat that liquid to strip the CO2 back out as a concentrated gas, ready to store or convert. The heating is the expensive part, and it is the part reactive capture proposes to skip.

A Perspective published in Nature Energy on 1 September 2026, titled "Industrializing reactive capture of CO2," argues that this shortcut is closer to industrial use than the field's performance benchmarks suggest. Reactive capture, or RCC, feeds the CO2-rich liquid straight into an electrolyser, where an electrochemical reaction converts the captured carbon into a product such as carbon monoxide or a fuel precursor. No thermal regeneration step, no separate gas-handling loop. The authors argue RCC "could become viable for early industrial adoption, ahead of other electrified routes and at present levels of selectivity and voltage, if stability and scale barriers are addressed."

That last clause is the whole argument. The conventional demand on any electrified capture route is to push selectivity and voltage toward ideal before anyone builds at scale. The Perspective's coauthors, who include researchers at the University of Toronto and at Shell Global Solutions International B.V., invert that ordering: they contend the current performance is already good enough for a first industrial foothold, and that the binding problems are elsewhere.

What has to be solved instead

The Perspective names the barriers that stand between the concept and a running system: cathode stability inside the electrolyser, the compatibility of the capture fluid with the electrolyser's components, and the scaling of bipolar membranes from the bench to industrial dimensions. The claim is not that these are easy or imminent. It is that they, rather than incremental gains in selectivity, are what determine whether RCC works at all. It reframes the engineering question from "how good does the reaction need to be" to "what breaks when you run it continuously."

That reframing is worth attention on its own terms. Directing effort at durability and manufacturability, rather than at chasing an ideal number, is the move a field makes when it thinks a technology is ready to leave the laboratory. Shell Global Solutions appearing as a coauthor affiliation signals that an industrial party is thinking along the same lines, though it is an affiliation on a journal argument and not the announcement of a plant, a pilot or a project.

The verifiable event here is the publication of an argument, not a demonstration. The Perspective, which sits behind Nature's paywall, makes a case for a research-stage pathway rather than reporting a working system. Its own abstract flags cathode stability, fluid compatibility and membrane scale as unresolved. What it offers the engineers and investors tracking electrified capture is a specific target list: solve those three things, and the argument says the rest of the performance is already there.