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. 2021 Apr 5;11(8):4784–4798. doi: 10.1021/acscatal.0c05027

Figure 5.

Figure 5

Impact of PrOx promoter loading on catalyst performance. Evolution of (a) the cobalt-time-yield (metal-specific CO conversion rate) and the turnover frequency (TOF), per unit surface metal site as quantified with H2 chemisorption; and (b) the C5–C10 olefin abundance and hydrocarbon selectivities obtained with Pr-CoRu/AOmM catalysts supported on a multimodal meso-macroporous γ-Al2O3, as a function of the surface-specific praseodymium loading. Reaction conditions: T = 473 K, P = 20 bar, H2/CO = 2, WHSV = 8.7–18.0 h–1, CO conversion = 20 ± 3%.