 Phyto-thermal fissure-tropsch synthesis represents a promising strategy for converting CO into value-added chemicals. Here the authors report a RU1-Co single-atom alloy catalyst for CO-phytohydrogenation to see 5-plus liquid fuels at ambient pressure, and confirm the role of RU single atoms in promoting CO activation and CC coupling whilst suppressing CHX overhydrogenation. This article was authored by Jiechi Zhao, Jin Jiu Liu, Zhenhua Li, and others.