CO₂ Hydrogenation: Na Doping Promotes CO and Hydrocarbon Formation over Ru/m-ZrO₂ at Elevated Pressures in Gas Phase Media.

With an increase in Na loading, there was an increase in the strength of this interaction, as the differences exhibited an increasing trend, as follows (note that, in some cases, multiple formate species were detected, and we report the primary bands observed): undoped, Δ = 199 and 232 cm −1 ; 0.5 wt.% Na, Δ = 239 and 306 cm −1 ; 1 wt.% Na, Δ = 325 cm −1 ; and 1.8 wt.% Na, Δ = 336 cm −1 .

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