Nature Communications, Published online: 11 September 2026; doi:10.1038/s41467-026-77708-5 Fischer−Tropsch synthesis to paraffinic kerosene is a crucial pathway to obtain sustainable aviation fuel, but a more efficient catalyst is needed for practical applications. Here, the authors report a cobalt manganese catalyst supported on tetrapropylammonium hydroxide-etched Beta zeolites that addresses the long-standing activity-selectivity trade-off.